NET framework is a foundation calss on which you can build robust applications .This framework comprises of web forms,window forms andconsole applications..NET framework is basically a collection of services and classes.This exists as a layer... Read More

Unfortunately, this is currently not supported in the IDE. To do this from the command line, you must compile your projects into netmodules (/target:module on the C# compiler), and then use the command line tool al. exe (alink) to link these... Read More

In simple terms, Interrupt are come from all hardware to indicate to the CPU that all hardware are live and work properly and it's an only way by which mode switching i.e. from User mode to kernel mode is done. Read More

Hard disk is the secondary storage device, which holds the data in bulk, and it holds the data on the magnetic medium of the disk.Hard disks have a hard platter that holds the magnetic medium, the magnetic medium can be easily erased and rewritten,... Read More

No answer available currently. Be the first one to reply to this question by submitting your answer from the form below.   Read More

No answer available currently. Be the first one to reply to this question by submitting your answer from the form below.   Read More

The most common problem is that you used a lowercase 'm' when defining the Main method. The correct way to implement the entry point is as follows: class test { static void Main(string[] args) {} } Read More

These are the rules for naming classes in c sharp. ? Must begin with a letter. This letter may be followed by a sequence of letters, digits (0-9), or ?_?. The first character in a class name cannot be a digit. ? Must not contain any embedded space... Read More

You want the lock statement, which is the same as Monitor Enter/ Exit: lock(obj) { // code } translates to: try { CriticalSection.Enter(obj); // code } finally { CriticalSection.Exit(obj); } Read More

Yes, just place a colon, and then keyword base (parameter list to invoke the appropriate constructor) in the overloaded constructor definition inside the inherited class. Read More

You must use the Missing class and pass Missing.Value (in System.Reflection) for any values that have optional parameters. Read More

using System.Security.Permissions;<br>[assembly:FileDialogPermissionAttribute(SecurityAction.RequestMinimum, Unrestricted=true)] Read More

By calling Sort() and then Reverse() methods. Read More

The tracing dumps can be quite verbose and for some applications that are constantly running you run the risk of overloading the machine and the hard drive there. Five levels range from None to Verbose, allowing to fine-tune the tracing activities. Read More

No. C# does, however, support the concept of an indexer from language spec. An indexer is a member that enables an object to be indexed in the same way as an array. Whereas properties enable field-like access, indexers enable array-like access. As... Read More

C# requires only a single parameter for delegates: the method address. Unlike other languages, where the programmer must specify an object reference and the method to invoke, C# can infer both pieces of information by just specifying the method&... Read More

according to my view diff. bw these two is response is an object which acess the redirect element whereas in other server is the object which acess the trasnsfer element.overall we can say that diff is of name of object.... Read More

No. Static indexers are not allowed in C#. Read More

This specifier allows a class to hide its member variables and member functions to be accessed from other class objects and functions, except the child class, within the application. The protected internal access specifier becomes important while... Read More

Memory Management is a crucial role in every operating system. Memory management is there are many types such as 1. Storage memory Management 2. I/O Memory Management etc .. Read More

It may be the ASCII Converter Read More

Pipelining is a process in which the data is accessed in a stage by stage process. The data is accessed in a sequence that is each stage performs an operation. If there are n number of stages then n number of operations is done. To increase the... Read More

Yes, but they are not accessible, so looking at it you can honestly say that they are not inherited. But they are. Read More

Check this article which explains about Cache http://www.nedprod.com/NedHAL/Cache%20Coherency%20solutions.html Read More

Physically Cache is a part of storage area in RAM which allocates and deallocates the frequenlty used information based on the diffferent methods like (LIFO, FIFO, LRU etc.) Read More

Not exactly, the keys from the keyboard are not directly converted to ASCII values, keyboard generated a specific key code for every key pressed which is not the ASCII equivalent of that key. This keycode is then trapped by the OS which has a "Key... Read More

This Memory is used extending the capability of physical memory. This memory is simulated by the hard drive.When all the RAM is being used the computer will swap data to the hard drive and back to give the impression that there is more memory Read More

Variabiles saved between the sessions ( ASP, PHP etc.) Can be stored in server side or client side (with cookies). Read More

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Question What is a managed code. Is 'Dim fs as filestreamobject' is a managed code?               Answers: The .NET Framework provides a run-time environment called the Common Language... Read More

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ISAPI stands for Internet ServerApplication Programming Interface, is a specification that allows developers to extend IIS by writing components that proces raw HTTP requests. <br> <br>An ISAPI components ends up as DLL that IIS directs... Read More

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In the interface all methods must be abstract; in the abstract class some methods can be concrete. In the interface no accessibility modifiers are allowed, which is ok in abstract classes. Read More

The difference is that static read-only can be modified by the containing class, but const can never be modified and must be initialized to a compile time constant. To expand on the static read-only case a bit, the containing class can only modify it... Read More

All methods marked with the DllImport attribute must be marked as public static extern. Read More

I think the best place is to keep them in the client assembly. By this, the cleint need not do a reference to any assembly for accessing the interface. Read More

Yes. The code in the finally always runs. If you return out of the try block, or even if you do a "goto" out of the try, the finally block always runs, as shown in the following example: using System; class main { public static void Main() { ... Read More

System.Globalization, System.Resources. Read More

Yes, that is what keyword sealed in the class definition is for. The developer trying to derive from your class will get a message: cannot inherit from Sealed class WhateverBaseClassName. It is the same concept as final class in Java. Read More

Value type - bool, byte, chat, decimal, double, enum , float, int, long, sbyte, short, strut, uint, ulong, ushort Value types are stored in the Stack. Reference type - class, delegate, interface, object, string Reference types are stored in... Read More

Race conditions is a severe way crashing the server/ system at times. Generally this problem arises in priority less systems or the users who has eqal priority will be put to this problem. Race condition is a situation in which a resource D is to be... Read More

Generally Cache is using to imporve the performace of site.. We have two places where we can use caching.. 1. On Page Level... 2. Data level Caching for saving Dabase hit. Read More

I think this is about hardware architecture, so DMA stands for Direct Memory Access -- transferring the content of the memory to a I/O device (or back) without using the processor. Read More

Caching is done with so many ways like page caching, output caching etc. With ASP.NET we can achieve these effiecienty and handled by the CLR, which shows a direct impact on the Caching feature in .NET technology. Read More

caching is often considered as a performance-enhancement tool than a way to to store application data.If u spend more server resources in accesing the same data repeatedly,use caching instead.Caching data can bring huge performance benefits ,so... Read More

Pipeline is a process where a business object goes through several stages asynchronously. Where one stage picks up processes and drops it for the next process to pick up. The hazard is when the a different thread of the same process picks up the... Read More

Instruction Fetch Stage Instruction Decode Stage Instruction Execution Stage Memory Stage Write Back Read More

Cache memory is random access memory (RAM) that a computer microprocessor can access more quickly than it can access regular RAM. As the microprocessor processes data, it looks first in the cache memory and if it finds the data there (from a previous... Read More

MESI is a Cache Coherency protocol used in multi-processor systems to indicate the state in which the data in the cache of a particular processor is. It stands of Modified, Exclusive, Shared and Invalid Read More

EEE 1394 (Firewire) supports the maximum of 63 connected devices with speeds up to 400 Mbps. Read More

In primary storage device the storage capacity is limited. It has a volatile memory. In secondary storage device the storage capacity is larger. It is a nonvolatile memory. Primary devices are: RAM / ROM. Secondary devices are: Floppy disc / Hard... Read More

Architecture refers most directly to the built environment, the structures humans create and occupy. While buildings are one type of architecture artifact, other objects also document the built environment. These objects include photographs,... Read More

The Record Management System (RMS) is a simple record-oriented database that allows a MIDlet to persistently store information and retrieve it later. Different MIDlets can also use the RMS to share data. Read More

Question : Difference b/w Machine config vs. web config InProcess vs out process session state State server and sqlserver Cookie less session state 5. gui programming              Answers: ... Read More

web services are mechanism to acess remote programmeble logical unit by using http and xml combinly called SOAP(simple object access protocol)<br><br>Soap has some methods to access programmeble application logic by get, and post method.... Read More

Marshalling is the process of packaging and sending interface method parameters across thread, process or machine boundaries. Read More

Marshalling is the process of gathering data from one or more applications or non-contiguous sources in computer storage, putting the data pieces into a message buffer, and organizing or converting the data into a format that is prescribed for a... Read More

The COM interface class from which all other interface classes are derived. This interface allows all COM objects to manage their own lifetime, ie, to release themselves from memory when they are no longer connected to any clients. Read More

VBScript consists of only one data type (Variant) Read More

Option Explicit requires that all variable names be defined (with the Dim statement). Read More

Dim object as object --> the general VB object was created Dim obj as myform --> the myform object was created. The first one is general object and second one is the specified object. Read More

MFC provides stricter type checking for the return and parameter types of message handler functions. This new behavior notifies the developer of potential problems by flagging potentially unsafe message handlers with an error message. MFC now uses... Read More

Java is Platform indepandent Langg,witch can use for web development componant and web site also Read More

To create a virtual directory by using IIS Manager 1. In IIS Manager, expand the local computer, expand the Web Sites or FTP Sites folder, right-click the site or folder within which you want to create the virtual directory, point to New, and then... Read More

using 1)IIS Manager 2) Terminal Services 3)Remote Administration (HTML) Tool Read More

Drop dowm can done through (<select <option> <option> Read More

If the assemblies is private means doesn't worry about it. The assembly name is unique. Whereas the assemblies is like shared assembly find the name and versioning number of the assembly. Read More

There are a number of striking differences between ASP.NET and ASP. For some of these differences, the benefits will be immediately obvious. For others. We?ll have to get used to new ways of thinking about dynamic web Pages. Among the changes are: ... Read More

Web applications are stored on a server and delivered to users over the Internet. A Web application is usually a three-tier structure, comprising a User Service tier (allowing user access to the application), a Business Service tier (allowing the... Read More

No, once the proper catch code fires off, the control is transferred to the finally block (if there are any), and then whatever follows the finally block. Read More

Yes. The .NET class libraries provide support for regular expressions. Look at the documentation for the System.Text.RegularExpressions namespace. Read More

The method can be over-ridden. Read More

Single line code example and multiple-line code example. Read More

To the Console or a text file depending on the parameter passed to the constructor. Read More

There are imperative and interrogative functions. Imperative functions are the one which return a value while the interrogative functions do not return a value. Read More

No, moreover, you cannot access private methods in inherited classes, have to be protected in the base class to allow any sort of access. Read More

No. The access modifier on a property applies to both its get and set accessors. What you need to do if you want them to be different is make the property read-only (by only providing a get accessor) and create a private/internal set method that is... Read More

There are two different types of data supported by C#. They are 1) Value types: -They directly contain data. When you declare an int variable, the system allocates memory to store the value. 2) Reference type: -The reference types do not maintain... Read More

Microsoft.Access. Read More

Level 1 cache is internal to the chip, L2 is external. L1 Cache is of Higher speed than that of L2 Cache. Read More

The .NET Assemblies Part1 This online presentation about .NET assemblies helps the webmasters to know about the three tier architecture and about .NET assemblies. The author describes the real need of the three-tier architecture. The author... Read More

The automatic memory management scheme employed by the .NET Framework (CLR) is called garbage collection. Unused memory is automatically reclaimed by garbage collection without interaction with the application The garbage collector is a low... Read More

net 2005 is better as it has many additional functionalities.in .net 2000,there was not the login control...but in 2005 it is.similarly many more functions is added in 2005. Read More

C# is designed as a purely object oriented language from the scratch while VB.net was designed to port the existing VB programmers to dot net framework as VB.net is having the same feel as VB there are many features in C# which are not... Read More

CAS is a part of .NET security model that determines whether a piece of code is allowed to run and what resources it can use while running,eg:CAS will allow a application to be read but cannot delete it. Read More

SERIALIZATION: It is the process of converting the objects into stream of bytes which is used for Web Services or Remoting. There are 2 types of serializers present 1 XML Serializer:- used for web services 2Binary Formatter:-used for... Read More

Net Reflection : The REFLECTION is used to read the metadata information like(type, reference and methods). Which is derived from system.assembly.reflection class object. The simple meaning is to read assembly information by using this system... Read More

CLR See definition for common language runtime. CLS See definition for Common Language Specification. common type system The specification that determines how the common language runtime defines, uses, and manages types. common language... Read More

Threads are processed differently depending on IIS5. or IIS 6 is used. For each request that comes in, a new instance of the appropriate HttpApplication-derived class is created, as are the associated modules for that app. To avoid reallocating apps... Read More

SOAP, Simple Object Access Protocol is the standard format for requesting web services. <br> <br>XML, Extensible Markup Langage is the format for exchanging data between Internet Application. Read More

Multithreading is a important feature of .NET, which was not there in Visual Basic. If u want to use Multithreading, import a namespace called as System.Threading.In this namespace there are many classes related to it like Mutex,.... Read More

Satellite assemblies are often used to deploy language-specific resources for an application. These language-specific assemblies work in side-by-side execution because the application has a separate product ID for each language and installs... Read More

Answer: Static Pages Quick and easy to put together, even by someone who doesn't have much experience. Ideal for demonstrating how a site will look. Cache friendly, one copy can be shown to many people. Dynamic Pages Offers highly... Read More

NET allows to call System.Windows.Forms.Control functions only from thread where control was created. To run them from other thread we need to use Control.Invoke (synchronous call) or Control.BeginInvoke (asynchronous call) functions. For task like... Read More

You can customize the tracing output's target by adding TraceListener instances to or removing instances from the Listeners collection. Read More

TextWriterListener will redirect the tracing output to an instance of the TextWriter or to any object of stream class such as log file, network stram or Console. Read More

You now know that compilers that target the .NET Framework produce managed modules and that managed modules contain CIL and metadata. But you might be surprised to learn that the CLR is incapable of using managed modules directly. That?s because the... Read More

Operating systems and runtime environments provide some form of isolation between applications. This isolation is necessary to ensure that code running in one application cannot adversely affect other, unrelated applications Read More

IL: IL is a intermediate language, which is created when you compile the .net program. This is also a object oriented language. This makes cross language inheritance. c#: C# is a new OOPs language which is developed by Microsoft. This... Read More

The executed by the CLR environment it is called Managed Code, which can provide security, Exception Handling and Memory Management (Garbage Collection). Provide Type Safe. It becomes light weighted code. Read More

1. ASP.NET Web applications: These include dynamic and data driven browser based applications. 2. Windows Form based applications: These refer to traditional rich client applications. 3. Console applications: These refer to traditional DOS... Read More

As per the specifications of microsoft we can use 44 languages. Commonly used languages are 1. Visual Basic.NET 2. Visual C# 3. Visual C++ Read More

The .Net Framework runs on Windows XP, Windows Server 2003, Windows 2000, NT Server 4.0, Windows 98, or Windows ME, a lthough ASP.NET runs only on the first 3. Read More

According to Microsoft, .NET is a "revolutionary new platform, built on open Internet protocols and standards, with tools and services that meld computing and communications in new ways". A more practical definition would be that .NET is a new... Read More

ASP.NET is the latest version of Microsoft's Active Server Pages technology (ASP). <br> <br>ASP.NET is a part of the Microsoft .NET framework, and a powerful tool for creating dynamic and interactive web pages. Read More

2 Tier Architecture: This appliation having only Presentation Layer and Database Layer. 3 Tier Architecture: This application having Presentation Layer(User Interface) ,Business Layer for only calling Database Layer,Database Access Layer(DAL for... Read More

We can check it item_databound event of the datagrid. Read More

Marshaling performs the necessary conversions in data formats between managed and unmanaged code.CLR allows managed code to interoperate with unmanaged code usining COM Marshaler(Component of CLR) Read More

when a class is not provided with full functionalitythen it is declared as abstract.it doesn't support instance creation as well as it cannot be overridable to child class.interface is a colection of methods only without functionality.interface... Read More

NET Compact Framework come with CLR which perform automatic garbage collector to free the memory without using destector(perform garbage collector when is declear) Read More

Strong name the assembly using snk and copy the assembly into the windows/assembly folder Read More

All .Net Compatible Language will run in IL or MSIL(InterMediate language or Microsoft Intermediate Language).The Language Like VB.Net,C# and J# ....<br> Read More

In-Process Components<br><br>In .NET, components built as DLLs run within the process space of the host application and share memory and processor time with their host applications. At run time, the component (which is part of the host... Read More

Types of jit : prejit,ecno jit,normal jit pre jit : convert source code to native code in single completion of cycle.Normally this can be done at the time of deployment. econo jit : coverts the only called methods to native code,however it... Read More

Yes Read More

Question : What is the reason of occuring overflow-underflow arithmatic exception error, it shows error message when we run our program by adding control Answers: Its due to Divide by Zero Error i.e 5/0 Read More

 class can implement multiple interfaces. public class A : Ix, Iy,Iz This way you can achieve multiple inheritence Read More

It works for me with this code:ParameterFields paramFields = new ParameterFields(); //setdata ParameterField param_date = new ParameterField(); param_date.ParameterFieldName = "date"; ParameterDiscreteValue d = new ParameterDiscreteValue(); d.Value =... Read More

Question : A developer company sends dll's to the client. some client is not happy current functionality, so request some modification. developer made some changes and send new dll to all clients. Some client is happy with old... Read More

ASP.NET is a web-development platform.VB.NET is a language.Web-development with ASP.NET platform HTML, CSS, Client side scripts, ASP.NET tags and code behind with VB.NET or C#.NET or J#/C++ combination Read More

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If you have the better answer, then send it to us. We will display your answer after the approval Read More

Answers: Marshalling is the process of packaging and sending interface method parameters across thread, process or machine boundaries. It is not necessary when the client and the server are on the same computer. Read More

If you have the better answer, then send it to us. We will display your answer after the approval. Read More

If you have the better answer, then send it to us. We will display your answer after the approval. Read More

If you have the better answer, then send it to us. We will display your answer after the approval. Read More

COM is the component Object Model is a system whch creates application which are binary form that is language independent , object oriented ,modular and reusable . Read More

NTFS, FAT & FAT 32 are the file systems of NT. Read More

If you have the better answer, then send it to us. We will display your answer after the approval Read More

Actually we have <html></html> and <head> and <body>tags we have. Read More

System.String is immutable; System.StringBuilder was designed with the purpose of having a mutable string where a variety of operations can be performed. Read More

You need to use the /target:library compiler option. Read More

Windows Authentication (via Active Directory) and SQL Server authentication (via Microsoft SQL Server username and passwords). Read More

Yes, so and are different elements. Read More

Yes. Set all references to null and then call System.GC. Collect(). If you need to have some objects destructed, and System.GC.Collect() doesn't seem to be doing it for you, you can force finalizers to be run by setting all the references... Read More

Yes, you can use System.Environment.Exit(int exitCode) to exit the application or Application.Exit() if it's a Windows Forms app. Read More

A delegate object encapsulates a reference to a method. In C++ they were referred to as function pointers. Read More

It is an abstract class with public abstract methods all of which must be implemented in the inherited classes. Read More

When you write a multilingual or multi-cultural application in .NET, and want to distribute the core application separately from the localized modules, the localized assemblies that modify the core application are called satellite assemblies. Read More

Yes. What is the C# equivalent of C++ catch (?), which was a catch-all statement for any possible exception? Read More

You should declare the variable as an int, but when you pass it in you must specify it as 'out', like the following: int i; foo(out i); where foo is declared as follows: [return-type] foo(out int o) { } Read More

The first one performs a deep copy of the array, the second one is shallow. Read More

Yes. Try-catch-finally blocks are supported by the C# compiler. Here's an example of a try-catch-finally block: using System; public class TryTest { static void Main() { try { Console.WriteLine("In Try block"); throw new... Read More

When overriding, you change the method behavior for a derived class. Overloading simply involves having a method with the same name within the class. Read More

Windows Authentication is trusted because the username and password are checked with the Active Directory, the SQL Server authentication is untrusted, since SQL Server is the only verifier participating in the transaction. Read More

Yes Read More

With regard to versioning, interfaces are less flexible than classes. With a class, you can ship version 1 and then, in version 2, decide to add another method. As long as the method is not abstract (i.e., as long as you provide a default... Read More

HashTable. What is class SortedList underneath? Read More

Yes. Here's a simple example: using System; class Class1 { private string[] MyField; public string[] MyProperty { get { return MyField; } set { MyField = value; } } } class MainClass { public static int Main(string[] args) { Class1... Read More

When at least one of the methods in the class is abstract. When the class itself is inherited from an abstract class, but not all base abstract methods have been over-ridden. Read More

Classes in the same namespace. Read More

The equivalent of inout in C# is ref. , as shown in the following example: public void MyMethod (ref String str1, out String str2) { ... } When calling the method, it would be called like this: String s1; String s2; s1 = "Hello"; MyMethod(ref... Read More

Transaction must be Atomic (it is one unit of work and does not dependent on previous and following transactions), Consistent (data is either committed or roll back, no ?in-between? case where something has been updated and something hasnot),... Read More

Yes, if you are debugging via Visual Studio.NET, just go to Immediate window. Read More

They all must be public. Therefore, to prevent you from getting the false impression that you have any freedom of choice, you are not allowed to specify any accessibility, it is public by default. Read More

The following code should run the executable and wait for it to exit before continuing: using System; using System.Diagnostics; public class ProcessTest { public static void Main(string[] args) { Process p = Process.Start(args[0]); p.WaitForExit... Read More

An MSI installer, a CAB archive, and XCOPY command. Read More

No. Read More

Different parameter data types, different number of parameters, different order of parameters. Read More

Yes, just leave the class public and make the method sealed Read More

Two. Once you write at least one constructor, C# cancels the freebie constructor, and now you have to write one yourself, even if there is no implementation in it. Read More

Try using RegAsm. exe. The general syntax would be: RegAsm. A good description of RegAsm and its associated switches is located in the .NET SDK docs. Just search on "Assembly Registration Tool". Read More

C# has finalizers (similar to destructors except that the runtime doesn't guarantee they'll be called), and they are specified as follows: class C { ~C() { // your code } public static void Main() {} } Currently, they override... Read More

Web Services might use it, as well as non-Windows applications. Read More

The easiest way is to use goto: using System; class BreakExample { public static void Main(String[] args) { for(int i=0; i<3; i++) { Console.WriteLine("Pass {0}: ", i); for( int j=0 ; j<100 ; j++ ) { if ( j == 10) goto done; Console... Read More

Use a conditional attribute on the method, as shown below: class Debug { [conditional("TRACE")] public void Trace(string s) { Console.WriteLine(s); } } class MyClass { public static void Main() { Debug.Trace("hello"); } } In this... Read More

This is currently not supported by Visual Studio .NET. Read More

It returns a read-only dataset from the data source when the command is executed. Read More

StringBuilder is more efficient in the cases, where a lot of manipulation is done to the text. Strings are immutable, so each time it is being operated on, a new instance is created. Read More

Constructor is a member method of a class which is invorked when object is created to the class.A constructor name should be same of class name in c#.net.We have 2 types of constructors 1)Instence Constructor a)Static constrector 2) and non... Read More

System.Object. Read More

It is a delegate that points to and eventually fires off several methods. Read More

SQLServer.NET data provider is high-speed and robust, but requires SQL Server license purchased from Microsoft. OLE-DB.NET is universal for accessing other sources, like Oracle, DB2, Microsoft Access and Informix, but it is a .NET layer on top of... Read More

Positive test cases (correct data, correct output), negative test cases (broken or missing data, proper handling), exception test cases (exceptions are thrown and caught properly). Read More

A Sub does not return anything whereas a Function returns something. Read More

No, you cannot, the signature of the virtual method must remain the same, only the keyword virtual is changed to keyword override. Read More

Value, and its datatype depends on whatever variable we are changing. Read More

Use the regasm. exe utility to generate a type library (if needed) and the necessary entries in the Windows Registry to make a class available to classic COM clients. Once a class is registered in the Windows Registry with regasm.exe, a COM client... Read More

Strings are not null terminated in the runtime, so embedded nulls are allowed. Console.WriteLine() and all similar methods continue until the end of the string. Read More

The syntax for calling another constructor is as follows: class B { B(int i) { } } class C : B { C() : base(5) // call base constructor B(5) { } C(int i) : this() // call C() { } public static void Main() {} } Read More

The word checked is a keyword in C#. Read More

Multiple processes must agree that they will share the same connection, where every parameter is the same, Read More

DirectCast requires the run-time type of an object variable to bethe same as the specified type.The run-time performance ofDirectCast is better than that of CType, if the specified type and the run-time typeof the expression are the same. Ctype works... Read More

As a good rule, you should not call the garbage collector. However, you could call the garbage collector when you are done using a large object (or set of objects) to force the garbage collector to dispose of those very large objects from memory.... Read More

The database name to connect to. Read More

Assembly versioning allows the application to specify not only the library it needs to run (which was available under Win32), but also the version of the assembly. Read More

There is no way to restrict to a namespace. Namespaces are never units of protection. But if you're using assemblies, you can use the 'internal' access modifier to restrict access to only within the assembly. Read More

Let us say you want to query database with LIKE for all employees whose name starts with La. The wildcard character is %, the proper query with LIKE would involve La%. Read More

Presentation (UI), business (logic and underlying code) and data (from storage or other sources). Read More

The most common problem is that you used a lowercase 'm' when defining the Main method. The correct way to implement the entry point is as follows: class test { static void Main(string[] args) {} } Read More

Attach the aspnet_wp.exe process to the DbgClr debugger. Read More

Documentation looks the same. Use Debug class for debug builds, use Trace class for both debug and release builds. Read More

In debug compilation, assert takes in a Boolean condition as a parameter, and shows the error dialog if the condition is false. The program proceeds without any interruption if the condition is true. Read More

It points to the object that is pointed to by this reference. Object?s instance data is shown. Read More

CorDBG - command-line debugger, and DbgCLR - graphic debugger. Visual Studio .NET uses the DbgCLR. To use CorDbg, you must compile the original C# file using the /debug switch. Read More

You should declare the variable as an int, but when you pass it in you must specify it as ?out?, like the following: int i; foo(out i); where foo is declared as follows: [return-type] foo(out int o) { } Read More

Global attributes must appear after any top-level using clauses and before the first type or namespace declarations. An example of this is as follows: using System; [assembly : MyAttributeClass] class X {} Note that in an IDE-created project, by... Read More

Compile it with a /doc switch. Read More

[Obsolete] public int Foo() {...} or [Obsolete("This is a message describing why this method is obsolete")] public int Foo() {...} Note: The O in Obsolete is always capitalized. Read More

You must use the Missing class and pass Missing.Value (in System.Reflection) for any values that have optional parameters. Read More

Assemblies are the smallest units of versioning and deployment in the .NET application. Assemblies are also the building blocks for programs such as Web services, Windows services, serviced components, and .NET remoting applications. Read More

Private assembly is used inside an application only and does not have to be identified by a strong name. Shared assembly can be used by multiple applications and has to have a strong name. Read More

Use the directive in the XML .config file for a given application. < probing privatePath=c:mylibs; bindebug /> should do the trick. Or you can add additional search paths in the Properties box of the deployed application. Read More

Use the Assembly Binding Log Viewer (fuslogvw. exe) to find out the paths searched. Read More

Yes, if you are debugging via Visual Studio.NET, just go to Immediate window Read More

Yes, remember that GAC is a very special folder, and while normally you would not be able to place two files with the same name into a Windows folder, GAC differentiates by version number as well, so it?s possible for MyApp. dll and MyApp.dll to co... Read More

Delay signing allows you to place a shared assembly in the GAC by signing the assembly with just the public key. This allows the assembly to be signed with the private key at a later stage, when the development process is complete and the component... Read More

Yes, you can use System.Environment.Exit(int exitCode) to exit the application or Application.Exit() if it's a Windows Forms app. Read More

If a base class has a bunch of overloaded constructors, and an inherited class has another bunch of overloaded constructors, can you enforce a call from an inherited constructor to an arbitrary base constructor? Yes, just place a colon, and then... Read More

Yes. The .NET class libraries provide support for regular expressions. Look at the documentation for the System.Text.RegularExpressions namespace. Read More

Yes. Set all references to null and then call System.GC.Collect(). If you need to have some objects destructed, and System.GC.Collect() doesn't seem to be doing it for you, you can force finalizers to be run by setting all the references to the... Read More

StringBuilder is more efficient in the cases, where a lot of manipulation is done to the text. Strings are immutable, so each time it is being operated on, a new instance is created. Read More

A class that cannot be instantiated. A concept in C++ known as pure virtual method. A class that must be inherited and have the methods over-ridden. Essentially, it is a blueprint for a class without any implementation. Read More

It is available to derived classes and classes within the same Assembly (and naturally from the base class it is declared in). Read More

No, use interfaces instead. Read More

Place a colon and then the name of the base class. Notice that it is double colon in C++. Read More

If you try to instantiate the class inside the try, it'll be out of scope when you try to access it from the catch block. A way to get around this is to do the following: Connection conn = null; try { conn = new Connection(); conn.Open();... Read More

Some security exceptions are thrown if you are working on a network share. There are some parts of the frameworks that will not run if being run off a share (roaming profile, mapped drives, etc.). To see if this is what's happening, just move... Read More

Some sample code follows: using System; using System.Threading; class ThreadTest { public void runme() { Console.WriteLine("Runme Called"); } public static void Main(String[] args) { ThreadTest b = new ThreadTest(); Thread t = new Thread... Read More

No. If you want to get something that works like the following C code: #define A 1 use the following C# code: class MyConstants { public const int A = 1; } Then you use MyConstants.A where you would otherwise use the A macro. Using MyConstants... Read More

By using the Registry and RegistryKey classes in Microsoft.Win32, you can easily access the registry. The following is a sample that reads a key and displays its value: using System;using Microsoft.Win32; class regTest { public static void Main... Read More

The following is a response from a developer on the C# compiler team: We get rid of unused locals (i.e., locals that are never read, even if assigned). We get rid of unreachable code. We get rid of try-catch w/ an empty try. We get rid of try... Read More

There is no way to restrict to a namespace. Namespaces are never units of protection. But if you're using assemblies, you can use the 'internal' access modifier to restrict access to only within the assembly. Read More

No. Read More

Casting the char to an int will give you the ASCII value: char c = 'f'; System.Console.WriteLine((int)c); or for a character in a string: System.Console.WriteLine((int)s[3]); The base class libraries also offer ways to do this with the... Read More

From language spec: The list of similarities between classes and structs is as follows. Longstructs can implement interfaces and can have the same kinds of members as classes. Structs differ from classes in several important ways; however, structs... Read More

Not exactly. You can create an alias within a single file with the "using" directive: using System; using Integer = System.Int32; // alias But you can't create a true alias, one that extends beyond the file in which it is declared. Refer to the... Read More

In the past, you had to call .ToString() on the strings when using the == or != operators to compare the strings' values. That will still work, but the C# compiler now automatically compares the values instead of the references when the == or !=... Read More

Here's an example: using System; class StringToInt { public static void Main() { String s = "105"; int x = Convert.ToInt32(s); Console.WriteLine(x); } } Read More

In a garbage collected environment, it's impossible to get true determinism. However, a design pattern that we recommend is implementing IDisposable on any class that contains a critical resource. Whenever this class is consumed, it may be... Read More

Original Visual J++ code: public synchronized void Run() { // function body } Ported C# code: class C { public void Run() { lock(this) { // function body } } public static void Main() {} } Read More

No. However, there are plans for C# to support a type of template known as a generic. These generic types have similar syntax but are instantiated at run time as opposed to compile time. You can read more about them here. Read More

Here's a quick example of the DllImport attribute in action: using System.Runtime.InteropServices; class C { [DllImport("user32.dll")] public static extern int MessageBoxA(int h, string m, string c, int type); public static int Main() { ... Read More

No. C# does not have macros. Keep in mind that what some of the predefined C macros (for example, __LINE__ and __FILE__) give you can also be found in .NET classes like System.Diagnostics (for example, StackTrace and StackFrame), but they'll... Read More

Make sure that the target type set in the project properties setting is set to Windows Application, and not Console Application. If you're using the command line, compile with /target:winexe & not target: exe. Read More

C# has the is operator: expr is type Read More

C# does not support an explicit fall through for case blocks. The following code is not legal and will not compile in C#: switch(x) { case 0: // do something case 1: // do something in common with 0 default: // do something in common with /... Read More

C # is also known as c sharp. It is a programming language introduced by Microsoft. C# contains features similar to Java and C++. It is specially designed to work with Microsoft .NET platform. Read More

The following rules are used for naming variables in C#. * Must begin with a letter or an underscore _ which may be followed by a sequence of letters, digits (0-9), or ?_?. The first character in a variable name cannot be a digit. * Must not... Read More

A function is a set of statements that perform a specific task in response to a message. The functions of a class are called member functions in Csharp. Member functions are declared inside the class. The function declaration introduces the... Read More

Comments are a part of the program and are used to explain the code. Compilers ignore comment entries. If a comment entry spans more than one line, it has to be enclosed within ?/*? and ?*/?. The symbol ?//? treats the rest of code within the same... Read More

Applications use operators to process the data entered by a user. Operators like + and ? are used to process variables and return a value. An operator is a set of one or more characters that is used for computations or comparisons. Operators can... Read More

A break statement is used to exit the switch statement. This prevents the execution of the remaining case structures by ending the execution of the switch case construct. Each break statement terminates the enclosing switch statement and the flow... Read More

Encapsulation literally means to enclose in or as if in a capsule. Encapsulation is defined as the process of enclosing one or more items within a physical or logical package. It involves preventing access to nonessential details. Read More

An access specifier defines the scope of a class member. A class member refers to the variables and functions in a class. A program can have one or more classes. You may want some members of a class to be accessible to other classes. But, you may not... Read More

The private access specifier allows a class to hide its member variables and member functions from other class objects and functions. Therefore, the private member of a class is not visible outside a class. If a member is declared private, only the... Read More

Pass by value is the default mechanism for passing parameters to a method. The simplest definition of a value parameter is a data type name followed by a variable name. When a method is called, a new storage location is created for each value... Read More

A reference parameter is a reference to a memory location of a data member. Unlike a value parameter, a reference parameter does not create a new storage location. Instead a reference parameter represents the same location in memory as the variable... Read More

A structure is a value type data type. When you want a single variable to hold related data of various data types, you can create a structure. To create a structure you use the struct keyword. Read More

Enumeration is a value data type, which means that enumeration contains its own values and cannot inherit or pass inheritance. Enumerator allows you to assign symbolic names or integral constants. Read More

When at least one of the methods in the class is abstract. When the class itself is inherited from an abstract class, but not all base abstract methods have been over-ridden. Read More

No. The access modifier on a property applies to both its get and set accessors. What you need to do if you want them to be different is make the property read-only (by only providing a get accessor) and create a private/internal set method that is... Read More

Web Services might use it, as well as non-Windows applications. Read More

Parameters can be passed by using any one of the following mechanism. Value: -They are sometimes called in or out parameters; therefore, the data can be transferred into the method but cannot be transferred out. Reference: -Are sometimes called in... Read More

If constructor inheritance were allowed, then necessary initialization in a base class constructor might easily be omitted. This could cause serious problems which would be difficult to track down. For example, if a new version of a base class... Read More

They all must be public. Therefore, to prevent you from getting the false impression that you have any freedom of choice, you are not allowed to specify any accessibility, it is public by default. Read More

Basically there are two ways by which you can enable tracing. i. page label ii.application label. For page label tracing in the page directive write the following <@page trace="True"> and if you want show some message then either... Read More

Goto command prompt Ist you have to set the path and type csc /t:library filename then you will be created assembly which will stored in the application directory. for ex. i have file with hello.cs i used to csc /t:library hello.cs then... Read More

Single-line, multi-line and XML documentation comments. Read More

Unfortunately, this is currently not supported in the IDE. To do this from the command line, you must compile your projects into netmodules (/target:module on the C# compiler), and then use the command line tool al. exe (alink) to link these... Read More

Deletes it from the memory. Read More

A strong name includes the name of the assembly, version number, culture identity, and a public key token. Read More

If you leave off the return type on a method declaration, the compiler thinks you are trying to declare a constructor. So if you are trying to declare a method that returns nothing, use void. The following is an example: // This results in a CS1006... Read More