//출금 텍스트 예외처리 private void Withdraw_TextChanged(object sender, TextChangedEventArgs e) { try { if (Withdraw.Text == "") { Withdraw_Number = 0; Withdraw.Text = "0"; } else { Withdraw_Number = Convert.ToInt32(Withdraw.Text); } } catch { Withdraw.Text = Withdraw_Input; Withdraw.Select(Withdraw.Text.Length, 0); } }