private void otherAttributes_CellContentClick( object sender, DataGridViewCellEventArgs e )
{
var senderGrid = (DataGridView) sender;
if (senderGrid.Columns[e.ColumnIndex] is DataGridViewButtonColumn &&
e.RowIndex >= 0)
{
var form = new DatumForm();
if (DialogResult.OK == form.ShowDialog())
{
DatumType value = form.Datum;
senderGrid.Rows[e.RowIndex].Cells[1].Value = value.ToString();
}
}
}