When we have to post data from one page to another in application we used server.transfer method but in this the URL remains the same but in cross page posting there is little different there is normal post back is done but in target page we can access values of server control in the source page.This is quite simple we have to only set the PostBackUrl property of Button, LinkButton or Imagebutton which specifies the target page.In target page we can access the PreviousPage property.And we have to use the @PreviousPageType directive.We can access control of PreviousPage by using the findcontrol method.When we set the PostBackURL property ASP.NET framework bind the HTML and Javascript function automatically.

Authentication means validating users. In this step, we verify user credentials to check whether the person tying to log in is the right one or not.

Authorization is keeping track of what the current user is allowed to see and what should be hidden from him.
Note: Authentication verifies who you are and Authorization verifies what you are authorized to do.

(IL)Intermediate Language is also known as MSIL (Microsoft Intermediate Language) or CIL (Common Intermediate Language). All .NET source code is compiled to IL. This IL is then converted to machine code at the point where the software is installed, or at run-time by a Just-In- Time (JIT) compiler.


A break point is the line of code at which you want your program to be paused (when running in debugger mode) and see the runtime values of different variables in the program. If the program control ever reaches this line during the execution of the program, it pause the execution and allows you to see and edit the values of the variables of your program. 

To run the application with debugger, select Debug > Run or press F5. To run the application without debugger, select Debug > Run without debugger or press Ctrl+F5 

2 events, one is disposed , second one is tick event

The design view opens the VS.NET form designer that allows you to place user interface controls on the form by simple drag and drop, resize them and set various properties in the convenient way. The designer automatically generates the required code for the program. The code view opens the source code editor that allows you to see the actual code of the program and perform any desired edition. 

Namespaces are used to organize classes within the .NET Framework. They dictate the logical structure of the code. They are analogous to Java packages, with the key difference being Java packages define the physical layout of source files (directory structure) while .NET namespaces do not. However, many developers follow this approach and organize their C# source files in directories that correlate with namespaces. The .NET Framework has namespaces defined for its many classes, such as System.Xml—these are utilized via the using statement. Namespaces are assigned to classes via the namespace keyword.

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