private void btnDangNhap_Click(object sender, EventArgs e)
{
TaiKhoan tk = database.TaiKhoans.SingleOrDefault(n => n.TenDangNhap == txtTenDangNhap.Text && n.MatKhau == txtMatKhau.Text);
if (tk == null)
{
MessageBox.Show("Tài khoản hoặc mật khẩu sai mời đăng nhập lại");
return;
}
else
{
frmMain f = new frmMain();
f.Show();
this.Hide();
}
}
private void bntOK_Click(object sender, EventArgs e)
{
SqlCommand command = new SqlCommand();
command.Connection = con;
command.CommandType = CommandType.Text;
command.CommandText = "Select * From tblDangNhap Where (Taikhoan=@user) And (matkhau=@password)";
command.Parameters.Add("@user", SqlDbType.NVarChar, 50).Value = txtTaiKhoan.Text;
command.Parameters.Add("@password", SqlDbType.NVarChar, 50).Value = txtMatKhau.Text;
da.SelectCommand = command;
da.Fill(dt);
if (dt.Rows.Count > 0)
{
MessageBox.Show("Dang nhap thanh cong");
Hide();
frmMain main = new frmMain();
main.Show();
}
else
{
MessageBox.Show("Đăng nhập thất bại");
}
}
private void bntOK_Click(object sender, EventArgs e)
{
SqlCommand command = new SqlCommand();
command.Connection = con;
command.CommandType = CommandType.Text;
command.CommandText = "Select * From tblDangNhap Where (Taikhoan=@user) And (matkhau=@password)";
command.Parameters.Add("@user", SqlDbType.NVarChar, 50).Value = txtTaiKhoan.Text;
command.Parameters.Add("@password", SqlDbType.NVarChar, 50).Value = txtMatKhau.Text;
da.SelectCommand = command;
da.Fill(dt);
if (dt.Rows.Count > 0)
{
MessageBox.Show("Dang nhap thanh cong");
Hide();
frmMain main = new frmMain();
main.Show();
}
else
{
MessageBox.Show("Đăng nhập thất bại");
}
}
private void btnThoat_Click_1(object sender, EventArgs e)
{
frmMain frm = new frmMain();
frm.Show();
}
private void HoSo_Click(object sender, EventArgs e)
{
Form frm1 = new frmMain();
frm1.Show();
Hide();
}