Asp.net What is Postback ? What it does ?

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Hi,

1.PostBack is the name given to the process of submitting an ASP.NET page to the server for processing .

2.PostBack is done if certain credentials of the page are to be checked against a database (such as verification of username and password).

3.This is something that a client machine is not able to accomplish and thus these details have to be 'posted back' to the server.

4.Example :

The usage of PostBack is a login page :

Explanation:

After the user has typed his username and password, he clicks on the 'Login' button. Upon the click, the page is sent to the server to check against the database/XML file to check if the user with supplied details
is an authenticated user.

Please check below link for more information regarding Postback in ASP.NET.

http://dotnet.tekyt.info/?p=30

http://www.codersource.net/asp-net/asp-net-articles/working-with-post-back-in-asp-net.aspx

Hope this will help you.

PostBack is the name given to the process of submitting an ASP.NET page to the server for processing.

PostBack is done if certain credentials of the page are to be checked against some sources (such as verification of username and password using database). This is something that a client machine is not able to accomplish and thus these details have to be 'posted back' to the server.