If I understand your scenario correctly you would like to export the RadGrid to PDF. Please note that if the grid is Ajax-enabled you need to cancel Ajax in order for the exporting to work as expected. You need to handle the OnRequestStart event of RadAjaxManager and if the export command was triggered - cancel Ajax. Check out the approach that is illustrated in this online demo
After the data is exported the page will be refreshed and the RadGrid will be rebound. This would also refresh the data in the grid.
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