private void DataGridView1_CellValidating(object sender, DataGridViewCellValidatingEventArgs e)
{
if (DataGridView1[e.ColumnIndex, e.RowIndex].IsInEditMode)
{
if (DataGridView1[e.ColumnIndex, e.RowIndex].ValueType == typeof(int))
{
Control c = DataGridView1.EditingControl;
int tempVar = 0;
if (!(int.TryParse(c.Text, out tempVar)))
{
MessageBox.Show("Must be numeric");
e.Cancel = true;
DataGridView1.CancelEdit();
}
}
}
}
