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  1. #1
    runtest is offline Novice
    Windows Vista Access 2003
    Join Date
    Feb 2010

    Logging In

    I searched the forums but did not find a solution to my problem. Any help would be very appreciated. Further more, answering this question would answer about 35 other questions I have.

    Private Sub cmdLogin_Click()
    On Error GoTo ErrorPoint
       If Len(Nz(Me!txtUserName, "")) = 0 Then
           ' User Name box is empty
           MsgBox "Please select your user name before continuing.", _
           vbInformation, "Enter User Name"
           GoTo ExitPoint
       End If
       If Len(Nz(Me!txtPassword, "")) = 0 Then
           ' Password box is empty
           MsgBox "Please enter your password before continuing.", _
           vbInformation, "Missing Password"
           GoTo ExitPoint
       End If
       Exit Sub
       MsgBox "The following error has occurred:" _
       & vbNewLine & "Error Number: " & Err.Number _
       & vbNewLine & "Error Description: " & Err.Description _
       , vbExclamation, "Unexpected Error"
       Resume ExitPoint
    End Sub
    This is the code I have for my login button. I have linked the tables to my access project. The table is called.


    The four keys in the table is.

    Employee ID | AccessLevel | Username | Password

    The form I am trying to open when a correct authentication is processed is.


    Any help would really be appreciated. By seeing a working example of this it would answer several key questions I have.
    Note: The txtUserName box is actually a combo-box with a drop down of the user names.

  2. #2
    pbaldy's Avatar
    pbaldy is offline Who is John Galt?
    Windows XP Access 2007
    Join Date
    Feb 2010
    Nevada, USA
    The simplest method would be to use a DCount() function to test the user/password combination against your user table. If the count is greater than zero, you have a valid login. More info on syntax here:

    DLookup Usage Samples
    Paul (wino moderator)
    MS Access MVP 2007-2019

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