private void btnDangNhap_Click(object sender, EventArgs e)
{
//if (txtTaiKhoan.Text == "admin" && txtMatKhau.Text == "admin")
//{
ucManHinhChinh ucManHinhChinh = new ucManHinhChinh();
ucManHinhChinh.Dock = DockStyle.Fill;
frmMain.frmMain_.MetroContainer.Controls.Add(ucManHinhChinh);
frmMain.frmMain_.MetroContainer.Controls["ucManHinhChinh"].BringToFront();
frmMain.taikhoan = txtTaiKhoan.Text;
frmMain.matkhau = txtMatKhau.Text;
foreach (var item in frmMain.frmMain_.MetroContainer.Controls.OfType <ucDangNhap>())
{
frmMain.frmMain_.MetroContainer.Controls.Remove(item);
}
//}
}
