Here Mudassar Ahmed Khan has explained with an example, how to implement Paging (Pagination) and Sorting in GridView control without Page PostBack (Refresh) in ASP.Net using C# and VB.Net.
The EnableSortingAndPagingCallbacks property does make the Paging (Pagination) and Sorting in GridView AJAX based i.e. without Page PostBack (Refresh) but it has limitation that it does not work with TemplateField column.
Hence the best solution is to make use of ASP.Net AJAX UpdatePanel and place the GridView inside it, which makes the Paging (Pagination) and Sorting in GridView AJAX based i.e. without Page PostBack (Refresh).
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