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If you put the Required Field Validator in any Item Template or any other Template supported by Grid View you will recieve an error saying that Grid View is unable to find the control to validate.I have done the same thing with the Drop Down List.You will also notice that when you loose focus from the control the validation control event will be fired.

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Export Button is a custom control that let's you export your Data Grid or Text Box data to several different formats.

The Required Field Validator for the Text Box control in the Description column is placed in the Edit Item Template of the Grid View control.

This is because the Text Box is in the Edit Item Template and that is what we need to validate.

Raises the Page Index Changing and Page Index Changed events.

event is raised when a button listed in the previous table is clicked, it is recommended that you use the events listed in the table for the operation.


  1. You have to write code on RowUpdating Event for edit row in gridview. The GridView 'GridView1' fired event RowEditing which wasn't handled.

  2. Here Mudassar Ahmed Khan has explained with an example, how to use the RowUpdating event of GridView control using C# and In order to illustrate this concept I will make use of an GridView control on which I’ll perform Edit and Update operations and save the updated data with the temporary DataTable.

  3. This is a most common question in Forums. We will find the actual cause, for which the RowUpdating Event behaves abnormal. Walk Through Add a GridView in aspx page and define all its required properties and Events.

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