[Original] solved the problem of page flip of DataGrid

This is the problem. After I flip to the 3rd page and enter something in the query text box to query, I will prompt:
Invalid currentpageindex value. It must be> = 0 and <The pagecount.
Description: An unhandled exception occurred during the execution of the current Web request. please review the stack trace for more information about the error and where it originated in the code. exception details: system. web. httpexception: Invalid currentpageindex value. it must be> = 0 and <The pagecount.

Currentpageindex must be greater than or equal to 0 and smaller than pagecount.

Datagrid1.currentpageindex =   0 ; // This is to avoid the following: Invalid currentpageindex value. It must be> = 0 and <The pagecount
Datagrid1.databind ();

In this way, my problem is solved.