private void btnAdd_Click(object sender, EventArgs e)
{
AddBank addBank = new AddBank();
addBank.ShowDialog();
Refresh();
}
private void btnUpdate_Click(object sender, EventArgs e)
{
int id = int.Parse(dgBank.SelectedCells[0].FormattedValue.ToString());
var _bank = GloblMain.dbo.Banks.Find(id);
AddBank addBank = new AddBank(_bank);
addBank.ShowDialog();
Refresh();
}