问如何为特定用户隐藏菜单？

EN

protected void btnLogin_Click(object sender, EventArgs e)
    {
        //Response.Redirect("~//Administration/DashBoard.aspx");
        SqlConnection con = new SqlConnection("Integrated Security=SSPI;Persist Security Info=False;Initial Catalog=DebitCareBankApp;Data Source=SSDEV7-HP\\SQLEXPRESS");
        string cmdStr = "select LoginType from Login where UserName='" + TxtUserName.Text + "' AND Password = '" + TxtPassword.Text + "'";
        SqlCommand cmd = new SqlCommand(cmdStr, con);
        con.Open();
        Object TypeUser = cmd.ExecuteScalar();
        con.Close();
        //int switchcase = int.Parse(TypeUser);
        if (TypeUser != null)
        {
            LblError.Visible = false;
            LblError.Text = "";
            if (TypeUser.ToString() == "Manager")
            {

                Response.Redirect("~//Administration/Manager/WorkManagement.aspx");
            }
            else if (TypeUser.ToString() == "HR")
            {
                             Response.Redirect("~//Administration/Hr/CalculateAndGeneratePayslips.aspx");
            }
            else if (TypeUser.ToString() == "Employee")
            {
                Response.Redirect("~//Administration/CallingAgent/TodaysWork.aspx");
            }
        }
        else
        {
            LblError.Visible = true;
            LblError.Text = "Invalid Credentials Entered, Try again";
        }
    }