private void txtGiaTriDat_KeyPress(object sender, KeyPressEventArgs e) { DatabaseAccess.AllowDigit(e); }
private void txtPhiTheoGTTS_KeyPress(object sender, KeyPressEventArgs e) { DatabaseAccess.AllowDigit(e); }
private void txtDienTichNha_KeyPress(object sender, KeyPressEventArgs e) { DatabaseAccess.AllowDigit(e); }