ToolTip in a Datagrid? (resolved)

[texas]

i used the code below to set the tooltip of an item once you click on it BUT how can you load the tooltip when the datagrid is loaded?

Dim dgCellDiag As TableCell = e.Item.Cells(3)
        Dim dgDiag As String = dgCellDiag.Text
 
        Select Case e.CommandName
 
            Case Is = "diag"
 
                e.Item.ToolTip = dgDiag
 
        End Select