如何在winform中创建具有功能分散用户的登录表单

Question

我想创建表单登录： - textboxUserName - textboxPassword - buttonLogin

我的数据库有分散用户表

如果用户名是admin，则打开表单1 如果用户名是用户打开表单2

请帮助我，谢谢

这是我的代码，没有分散用户：

           try
        {
            if (txtUserName.Text == "" || txtPassword.Text == "")
            {
                MessageBox.Show("Entry Username and Password", "Error");
                txtUserName.Focus();
                return;
            }
            else
            {
                SqlConnection conn = new SqlConnection(@"Data Source=; Initial Catalog=; uid = sa; pwd = 123456;");
                conn.Open();
                SqlCommand cmd = new SqlCommand("Select Pass From Account Where UserName ='" + txtUserName.Text + "'", conn);
                SqlDataReader reader = cmd.ExecuteReader();
                reader.Read();
                if (txtPassword.Text == reader.GetValue(0).ToString())
                {
                    MessageBox.Show("Login success!", "Success");
                    reader.Close();
                    conn.Close();
                    this.Hide();
                    //I need assistance in this paragraph
                    //if (user == admin) open form 1
                    // else open form 2
                    Form2 frm2 = new Form2();
                    frm2.ShowDialog();
                }
                else
                {
                    MessageBox.Show("Wrong password", "Error");
                    txtPassword.Focus();
                }
                reader.Close();
                conn.Close();
            }
        }
        catch (Exception)
        {
            MessageBox.Show("Wrong Username or Password", "Error");
            txtUserName.Focus();
        }