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Datagridview - how to identify Top Left Corner Select All cell?

In a datagridview, the first column header cell is columnHeader(0), which is
immediately to the right of the Top Left Corner Select All cell. And the
first RowHeader cell is RowHeaderCell(0) which is immediately below the Top
Left Corner Select All cell.

When clicking on the Top Left Corner SelectAll cell, which selects all the
Rows/columns in the datagridview, the only event that appears to fire is the
SelectionChanged event. But that event fires for just about anything. How
can I isolate/identify when it was the Top Left Corner SelectAll cell that
was clicked?

Thanks,
Rich
May 11 '07 #1
0 2141

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