Access level against user login criteria

Question

Hello all , 

I have 3 forms in my c# winform app , 

1. Login
2. Data Entry
3. Dashboard with Graphs

Now after login a user must only access data entry form , but after admin login he must get both the form access .How to do this .

For form opening i am using this ..but how to modify it i am not getting.as every time that "login not successful" is also showing

Data_Entry f = new Data_Entry();
f.Show();

And here is mu login form code:

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace Mechanical_Straightening_Dies
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
            this.ActiveControl = comboBox1;
            comboBox1.Focus();
        }

        private void Btnexit_Click(object sender, EventArgs e)
        {
            System.Windows.Forms.Application.Exit();
        }

        private void Btnlogin_Click(object sender, EventArgs e)
        {
            string user = comboBox1.Text;
            string pass = textBox1.Text;

            if(user == "ADMIN" && pass == "admin")
            {
                MessageBox.Show("Login Successfull as ADMIN");
                FrmDashBoard f = new FrmDashBoard();
                f.Show();
                this.Hide();
            }
            if(user == "USER" && pass == "password")
            {
                MessageBox.Show("Login Successfull as USER");
                FrmDataEntry f = new FrmDataEntry();
                f.Show();
                this.Hide();
            }
            else
            {
                MessageBox.Show("Invalid Username or Password");
            }
        }

        private void comboBox1_KeyDown(object sender, KeyEventArgs e)
        {
            if(e.KeyCode == Keys.Enter)
            {
                textBox1.Focus();
            }
        }

        private void textBox1_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.KeyCode == Keys.Enter)
            {
                Btnlogin.PerformClick();
            }
        }
    }
}

Answer 1

To solve the problem of unwanted message, try adding an else:

   }

   else if( user == “USER” && . . .

To allow the administrator to access the forms, maybe add buttons like “Show Dashboard” and “Show Data Entry” to both forms, but hide them if the user is not an administrator; something like this:

   FrmDataEntry f = new FrmDataEntry();

   f.IsAdministrator = false;

   f.Show( );

where IsAdministrator is a custom property. Use this value in Form_Load event of both forms to show or hide the buttons.

Answer 2

Thank you so much for your suggestion ..