How to detect DataGridView CheckBox event change?

Question

I have a winforms app and want to trigger some code when a checkbox embedded in a DataGridView control is checked / unchecked. Every event I have tried either

Answer 1

I have found a simpler answer to this problem. I simply use reverse logic. The code is in VB but it is not much different than C#.

 Private Sub DataGridView1_CellContentClick(sender As Object, e As 
 DataGridViewCellEventArgs) Handles DataGridView1.CellContentClick

    Dim _ColumnIndex As Integer = e.ColumnIndex
    Dim _RowIndex As Integer = e.RowIndex

    'Uses reverse logic for current cell because checkbox checked occures 
     'after click
    'If you know current state is False then logic dictates that a click 
     'event will set it true
    'With these 2 check boxes only one can be true while both can be off

    If DataGridView1.Rows(_RowIndex).Cells("Column2").Value = False And 
       DataGridView1.Rows(_RowIndex).Cells("Column3").Value = True Then
        DataGridView1.Rows(_RowIndex).Cells("Column3").Value = False
    End If

    If DataGridView1.Rows(_RowIndex).Cells("Column3").Value = False And 
    DataGridView1.Rows(_RowIndex).Cells("Column2").Value = True Then
        DataGridView1.Rows(_RowIndex).Cells("Column2").Value = False
    End If


End Sub

One of the best things about this is no need for multiple events.