Store DataTable in view state

Use Session for storing DataTable because Viewstate is not efficient for storing large objects like DataTable as they wrapped with each server request.

  Session[dt] = datatableobj;

But why I cant use the viewstate, and whey it sometimes working normally and sometimes not ?

DataTable size might increase some times so better to use session..

but if you wanna use viewstate then write code like:

First store datatable values to viewstate ViewState["tempDatatable"] = datatable;

Now to retrieve the same

datatable = (DataTable)(viewstate["tempDAtatable"].ToString())

Dear  indrajitmahajan I know how I can store and retrieve in view viewstate
you can check the issue above :)

It might be based on number of rows stored in datatable that affects the viewstate

Check below link

http://weblogs.asp.net/leftslipper/archive/2007/02/26/sys-webforms-pagerequestmanagerparsererrorexception-what-it-is-and-how-to-avoid-it.aspx

It may helps.

I found the solution for my question :)