17.4. Editing with the GridView
The GridView provides support for editing that's almost as convenient as its support for selection. To switch a row into select mode, you simply set the SelectedIndex property to the corresponding row number. To switch a row into edit mode, you set the EditIndex property in the same way.
Of course, both of these tasks can take place automatically if you use specialized button types. For selection, you use a CommandField column with the ShowSelectButton property set to true. To add edit controls, you follow almost the same step—once again, you use the CommandField column, but now you set ShowEditButton to true.
Here's an example of a GridView that supports editing:
<asp:GridView ID="gridProducts" runat="server" ...
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