Access level on VB.NET - database

Question

I have created a system and im new to vb.net. It is working fine. The problem is, I need to restrict the main page from 1.) Users and 2.) Admin.
For example, After logging in, Admin will proceed to the main page
And if users logs in, they will be directed to a different page
I'm still new to vb.net (like 6 weeks ago) and i am using microsoft access as my database. A lot of code I find online is very complex and technical. I just need simple vb.net code
Any help will be appreciated, thank you!!
i have posted my code for my login form, so you guys can further understand my coding:
Public Class Form1
Dim loginerror As String
Public Function login()
Dim DBconn As New ADODB.Connection
Dim user As New ADODB.Recordset
Dim Username As String
Dim userDB As String
Dim passDB As String
Dim UserFound As Boolean
DBconn.Open("Provider = Microsoft.Jet.OLEDB.4.0;" & _
"Data Source = '" & Application.StartupPath & "\LoginDB.mdb'")
user.Open("UserTable", DBconn, ADODB.CursorTypeEnum.adOpenStatic, ADODB.LockTypeEnum.adLockOptimistic)
UserFound = False
login = False
Username = "Username = '" & txtuser.Text & "'" '
Do
user.Find(Username)
If user.BOF = False And user.EOF = False Then
userDB = user.Fields("Username").Value.ToString
passDB = user.Fields("Password").Value.ToString
If userDB <> txtuser.Text Then
user.MoveNext()
Else
UserFound = True
If passDB = txtpass.Text Then
user.Close()
DBconn.Close()
Return True
Else
loginerror = "Invalid Password"
user.Close()
DBconn.Close()
Return False
End If
End If
Else
loginerror = "Invalid Username"
user.Close()
DBconn.Close()
Return False
End If
Loop Until UserFound = True
user.Close()
DBconn.Close()
Return False
End Function
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
If login() = True Then
Welcome.Show()
Me.Close()
Else
MessageBox.Show(loginerror, "Login Message")
End If
End Sub
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
AcceptButton = Button1
Me.Show()
Application.DoEvents()
txtuser.Focus()
End Sub
Private Sub txtpass_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles txtpass.TextChanged
End Sub
Private Sub Label2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Label2.Click
End Sub
Private Sub txtuser_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles txtuser.TextChanged
End Sub
Private Sub Label1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Label1.Click
End Sub
Private Sub PictureBox1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles PictureBox1.Click
End Sub
Private Sub Label3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Label3.Click
End Sub
End Class
Just in case here is my coding for my main form:
Public Class Mainform
Private Sub Form1_FormClosing(ByVal sender As Object, ByVal e As System.Windows.Forms.FormClosingEventArgs) Handles Me.FormClosing
Select MessageBox.Show("Are you sure you want to exit?", "Confirm", MessageBoxButtons.YesNo, MessageBoxIcon.Question)
Case Windows.Forms.DialogResult.Yes
Case Windows.Forms.DialogResult.No
e.Cancel = True
End Select
End Sub
Private Sub Mainform_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Me.WorkTableAdapter.Fill(Me.LoginDBDataSet.Work)
Me.AssetTableAdapter.Fill(Me.LoginDBDataSet.Asset)
Me.HistoryTableAdapter.Fill(Me.LoginDBDataSet.History)
Me.InventoryTableAdapter.Fill(Me.LoginDBDataSet.Inventory)
Me.Equipment1TableAdapter.Fill(Me.LoginDBDataSet.Equipment1)
End Sub
Private Sub mainform_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles MyBase.KeyDown
If e.KeyCode = Keys.Escape Then Me.Close()
End Sub
Private Sub Equipment1BindingNavigatorSaveItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Equipment1BindingNavigatorSaveItem.Click
Me.Validate()
Me.Equipment1BindingSource.EndEdit()
Me.TableAdapterManager.UpdateAll(Me.LoginDBDataSet)
End Sub
Private Sub ToolStripButton1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ToolStripButton1.Click
Mainform_Load(Me, New System.EventArgs)
End Sub
Private Sub ToolStripButton2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ToolStripButton2.Click
Form1.Show()
Me.Dispose()
Me.Close()
End Sub
Private Sub TabPage1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TabPage1.Click
End Sub
Private Sub IDLabel_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)
End Sub
Private Sub TabPage5_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TabPage5.Click
End Sub
Private Sub Equipment_NameTextBox_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs)
End Sub
Private Sub HistoryDataGridView_CellContentClick(ByVal sender As System.Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs)
End Sub
Private Sub InventoryDataGridView_CellContentClick(ByVal sender As System.Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs)
End Sub
Private Sub TabControl1_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TabControl1.SelectedIndexChanged
End Sub
Private Sub Machine_IDTextBox_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs)
End Sub
Private Sub _WO_CompletedLabel_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)
End Sub
Private Sub _WO_CompletedCheckBox_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs)
End Sub
Private Sub _WO_CompletedCheckBox_CheckedChanged_1(ByVal sender As System.Object, ByVal e As System.EventArgs)
End Sub
Private Sub Machine_IDTextBox1_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Machine_IDTextBox1.TextChanged
End Sub
Private Sub _WO_CompletedCheckBox_CheckedChanged_2(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles _WO_CompletedCheckBox.CheckedChanged
End Sub
End Class

Answer 1

you need to determine if the user is administrator or not (usually your user table should have a role attached to the user e.g. administration, employee, etc.)
something like this when you try to log in
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
If login() = True and UserRole='Administrator' Then
Welcome.Show()
Me.Close()
elseif login() = True then
WelcomeUser.Show()
Me.Close()
Else
MessageBox.Show(loginerror, "Login Message")
End If
End Sub