[RESOLVED] Please Help!! Im on a deadline and I cant figure this out!!

[EmilyM1105]

This is your code that actually checks to see if the entered username is found in the array:

            Dim userIndex As Integer
            For loopIndex = 0 To arrUsernames.Length - 1
                If arrUsernames(loopIndex) = username Then
                    userIndex = loopIndex
                    Exit For
                End If
            Next

Essentially, that code should go inside the VerifyUsername function.

    Function VerifyUsername(username As String) As Boolean
        
            Dim userIndex As Integer
            For loopIndex = 0 To arrUsernames.Length - 1
                If arrUsernames(loopIndex) = username Then
                    userIndex = loopIndex
                    Exit For
                End If
            Next

    End Function

But you are going to need to work through a couple issues:

1. Inside the Function you need to have some code that does a "Return True" if the username is found, and a "Return False" if the username isn't found. There are several was to write the logic to do this.
2. Your code to check for the password relies on knowing the value of userIndex. So you will have to do something with the userIndex variable to make it so that this value is accessible in both the VerifyUsername and VerifyPassword function (Hint: look at how blnLoggedIn is initialized).

So do I need to just delete it out of that area and copy and paste it in the function area. Or does it need to be in both places??

[OptionBase1]

It should only be in the VerifyUsername function. But as I indicated, you need to add additional code to it to get it to work properly. If you just move it and leave the code as is your program won't work properly.

In the end, the Login Sub should only look something like this:

    Sub Login(username As String, password As String)
        blnLoggedIn = False
        If VerifyUsername(username) AndAlso VerifyPassword(password) Then
            blnLoggedIn = True
        Else
            MessageBox.Show(“Incorrect password.”)
        End If

    End Sub

I hope you can see from that that you are relying on the VerifyUsername and VerifyPassword functions to actually do the checking of the username and password.

Edit: you should be using an AndAlso in your If statement, since if the username isn't found there is no need to check the password.

[EmilyM1105]

It should only be in the VerifyUsername function. But as I indicated, you need to add additional code to it to get it to work properly. If you just move it and leave the code as is your program won't work properly.

In the end, the Login Sub should only look something like this:

    Sub Login(username As String, password As String)
        blnLoggedIn = False
        If VerifyUsername(username) AndAlso VerifyPassword(password) Then
            blnLoggedIn = True
        Else
            MessageBox.Show(“Incorrect password.”)
        End If

    End Sub

I hope you can see from that that you are relying on the VerifyUsername and VerifyPassword functions to actually do the checking of the username and password.

Edit: you should be using an AndAlso in your If statement, since if the username isn't found there is no need to check the password.

ok so should i look like this?

Sub Login(username As String, password As String)
        blnLoggedIn = False
        If VerifyUsername(username) And VerifyPassword(password) Then
            blnLoggedIn = True
        Else
            MessageBox.Show(“Incorrect password.”)
        End If

    End Sub

Function VerifyUsername(username As String) As Boolean
       
            Dim userIndex As Integer
            For loopIndex = 0 To arrUsernames.Length - 1
                If arrUsernames(loopIndex) = username Then
                    userIndex = loopIndex
                    Exit For
                End If
            Next

          
    End Function

    Function VerifyPassword(password As String) As Boolean
        Return True
        'If the passwords match, Return True, otherwise Return False
    End Function

End Module

[OptionBase1]

You also need to put the password verification code that was in the Login Sub into the VerifyPassword Function.

And as I mentioned above, you need to add additional code in VerifyUsername that does a "Return True" if the username is found. So, if you look at your code, do you see a place where you are already determining if the username is found? If so, that is where the "Return True" statement belongs.

And here's a hint: When a function returns a value, any loops that are in progress automatically get terminated and the function exits.

[EmilyM1105]

You also need to put the password verification code that was in the Login Sub into the VerifyPassword Function.

And as I mentioned above, you need to add additional code in VerifyUsername that does a "Return True" if the username is found. So, if you look at your code, do you see a place where you are already determining if the username is found? If so, that is where the "Return True" statement belongs.

And here's a hint: When a function returns a value, any loops that are in progress automatically get terminated and the function exits.

ok so like this?

Sub Login(username As String, password As String)
        blnLoggedIn = False
        If VerifyUsername(username) And VerifyPassword(password) Then
            blnLoggedIn = True
        Else
            MessageBox.Show(“Incorrect password.”)
        End If

    End Sub

Function VerifyUsername(username As String) As Boolean
       
            Dim userIndex As Integer
            For loopIndex = 0 To arrUsernames.Length - 1
                If arrUsernames(loopIndex) = username Then
                    userIndex = loopIndex
                    Exit For
                End If
            Next

          
    End Function

    Function VerifyPassword(password As String) As Boolean
       If arrPasswords(userIndex) = password Then 

    End Function

End Module

[EmilyM1105]

You also need to put the password verification code that was in the Login Sub into the VerifyPassword Function.

And as I mentioned above, you need to add additional code in VerifyUsername that does a "Return True" if the username is found. So, if you look at your code, do you see a place where you are already determining if the username is found? If so, that is where the "Return True" statement belongs.

And here's a hint: When a function returns a value, any loops that are in progress automatically get terminated and the function exits.

Thats what I dont understand though..How do i connect the two functions?? If I put anything that has to do with the password in the username function i get an error??

[OptionBase1]

Don't even bother trying to run the code yet, you're several steps away from the program compiling. Just keep posting your code as it is currently.

You need to get the VerifyUsername function working before moving to the VerifyPassword function. I'll repeat myself from above:

And as I mentioned above, you need to add additional code in VerifyUsername that does a "Return True" if the username is found. So, if you look at your code, do you see a place where you are already determining if the username is found? If so, that is where the "Return True" statement belongs.

And here's a hint: When a function returns a value, any loops that are in progress automatically get terminated and the function exits.

[EmilyM1105]

Don't even bother trying to run the code yet, you're several steps away from the program compiling. Just keep posting your code as it is currently.

You need to get the VerifyUsername function working before moving to the VerifyPassword function. I'll repeat myself from above:

And as I mentioned above, you need to add additional code in VerifyUsername that does a "Return True" if the username is found. So, if you look at your code, do you see a place where you are already determining if the username is found? If so, that is where the "Return True" statement belongs.

And here's a hint: When a function returns a value, any loops that are in progress automatically get terminated and the function exits.

This part?? blnLoggedIn = True??

[EmilyM1105]

Don't even bother trying to run the code yet, you're several steps away from the program compiling. Just keep posting your code as it is currently.

You need to get the VerifyUsername function working before moving to the VerifyPassword function. I'll repeat myself from above:

And as I mentioned above, you need to add additional code in VerifyUsername that does a "Return True" if the username is found. So, if you look at your code, do you see a place where you are already determining if the username is found? If so, that is where the "Return True" statement belongs.

And here's a hint: When a function returns a value, any loops that are in progress automatically get terminated and the function exits.

So is this right?

Sub Login(username As String, password As String)
        blnLoggedIn = False
        If VerifyUsername(username) And VerifyPassword(password) Then
            blnLoggedIn = True
        Else
            MessageBox.Show(“Incorrect password.”)
        End If

    End Sub

Function VerifyUsername(username As String) As Boolean
       
            Dim userIndex As Integer
            For loopIndex = 0 To arrUsernames.Length - 1
                If arrUsernames(loopIndex) = username Then
                    userIndex = loopIndex
                    Exit For
                End If
            Next
       Return True
        blnLoggedIn = True


          
    End Function

    Function VerifyPassword(password As String) As Boolean
       If arrPasswords(userIndex) = password Then 

    End Function

End Module

[OptionBase1]

No, somewhere in the code below.

    Function VerifyUsername(username As String) As Boolean
       
            Dim userIndex As Integer
            For loopIndex = 0 To arrUsernames.Length - 1
                If arrUsernames(loopIndex) = username Then
                    userIndex = loopIndex
                    Exit For
                End If
            Next
          
    End Function

[EmilyM1105]

No, somewhere in the code below.

    Function VerifyUsername(username As String) As Boolean
       
            Dim userIndex As Integer
            For loopIndex = 0 To arrUsernames.Length - 1
                If arrUsernames(loopIndex) = username Then
                    userIndex = loopIndex
                    Exit For
                End If
            Next
          
    End Function

Oh ok so is it userindex = loopindex?