Assigning a value to a variable when user clicks Cancel in delete confirmation

Hi,


I have add an onclick attribute in my Delete linkbutton in my datagrid like below:

Code:

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l.Attributes.Add("onclick", "return confirm('Are you sure you want to delete this record?')")

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If the user clicks "Cancel", I want to assign a variable to nothing. How can I do it in the code above.

Thanks heaps.