how to send data girdview values from one webform to another webform

1.Normally it is not indicated to do that, but it is possible to have access from 2nd form to the 1st one by using Server.Transfer("Your2ndForm.aspx"), so in this way you may access the public data from the 1st form in your 2nd web form page load for example like bellow:

private   void   Page_Load(object   sender,   System.EventArgs   e)
  {
    Your1stWebForm1   firstWebForm;
    firstWebForm=(Your1stWebForm1)Context.Handler;
    firstWebForm.YourGrid... //Accessing your grid!
    //...
  }

2. Better is to try to find anther way of communication, for example if you have a small set of data in your web grid you could cache the data then reuse it in the 2nd grid.

You could find all possible way of communication between web forms of the same web application in the next article: http://dotnetslackers.com/community/blogs/haissam/archive/2007/11/26/ways-to-pass-data-between-webforms.aspx[^]

1)Gridview Values into DataTable.

2)DataTable into Session.

3)Pass the Session Value into another Page which you want.

4)Receive the Session Value .