Retain data in a gridview on Page Reload

By default the GridView selects a row based on Index. Try instructing the GridView to select rows based on Keys.

Set the EnablePersistedSelection property to true so that the row selection is based on data-key values. Now if your earlier selected row gets its index or position changed in any way it will remain selected.

Hi,

 

You have to use Session for that purpose. Viewstate value will be lost once you move from one page to another. You can use session instead. 

 

Please check below thread -

https://stackoverflow.com/questions/2288299/storing-and-retrieving-datatable-from-session