As we learned from the previous tutorials about the ASP.Net Gridview control containing checkbox controls to generate the output like a checkbox list. There we developed the functionality to check/uncheck the checkbox controls and maintained their state while performing paging action on the records displayed in the gridview control. In this tutorial we learn the VB.net code along with JavaScript snippet to validate the checkbox controls so that the user could not select the checkbox items more than the specified limit.
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