Which event of GridView will you implement for sorting ?
GridView_Sorting or GridView_Sorted ?
-> Sorting ?
Which event of GridView will you implement for paging ?
PageIndexChanging or PageIndexChanged ?
PageIndexChanging , PageIndexChanged , Sorting , Sorted, which ones
are frequently required and why ?
PageIndexChaning and Sorting are frequently required.
'ed' events are not always required, they are required
only when customization to data is required after
page is changed or sorted.