private void btnThem_Click(object sender, EventArgs e)
{
ThaoTac = "themmoi";
GUI_ThemThanhVien themTV = new GUI_ThemThanhVien();
themTV.ShowDialog();
}
private void btnSua_Click(object sender, EventArgs e)
{
if (_maThanhVien <= 0)
{
MessageBox.Show("Vui lòng chọn thành viên cần sửa!");
}
else
{
ThaoTac = "sua";
GUI_ThemThanhVien SuaTV = new GUI_ThemThanhVien();
SuaTV.ShowDialog();
}
}