private void button3_Click(object sender, EventArgs e)
{
FormTTKhachHang frm4 = new FormTTKhachHang();
frm4.txtIDKhachHang.Text = MaKHTuTang();
frm4.Show();
}
private void btnSuaQLKH_Click(object sender, EventArgs e)
{
if (string.IsNullOrEmpty(IDDangChon))
{
MessageBox.Show("Click Vào Dòng Muốn Sửa");
return;
}
FormTTKhachHang frm4 = new FormTTKhachHang();
frm4.txtIDKhachHang.Text = IDDangChon;
frm4.txtIDKhachHang.Enabled = false;
frm4.Show();
LoadQLKhachHang();
}