Excel vba username / password
Private Sub cmdLogin_Click()
On Error GoTo ErrorHandler
Dim RowNo As Long
Dim Id As String
Dim pw As String
Dim ws As Worksheets
Application.ScreenUpdating = False
Set ws = Worksheets("User&Pass")
Id = LCase(Me.txtLogin)
RowNo = Application.WorksheetFunction.Match(Id, ws.range("A2:A999"), 0)
CleanExit:
Set ws = Nothing ' free memory
Application.ScreenUpdating = True ' turn on the screen updating
Exit Sub
ErrorHandler:
MsgBox "Unable to match ID, enter valid ID.", vbOKOnly
GoTo CleanExit
End Sub
I have a custom excel format that I was working on and now I need to make it look more professional by having a login screen. I started with the code above, but I was stumped.
how to set it up my goal is to tell if id and password are the same, download the book or show the book and continue. the username and password are in the "User & Pass" sheet, the goal is to read from there in the a-user / b-pw columns respectively, and if that succeeds, I will hide this sheet so they cannot see other user information.
with what i started above, i just need to say this, if it matches usercolumn then the corresponding pw next to it will continue to still go to my error handler
I can do formatting about hiding and opening sheets, etc., just need help reading the username and pw
thanks in advance Z
Edited attempt:
Private Sub cmdLogin_Click()
On Error GoTo ErrorHandler
Dim RowNo As Long
Dim Id As String
Dim pw As String
Dim ws As Worksheets
Application.ScreenUpdating = False
Set ws = Worksheets("User&Pass")
Id = LCase(Me.txtLogin)
RowNo = Application.WorksheetFunction.Match(Id, ws.range("A2:A999"), 0)
RowNo = RowNo + 1
pw = ws.range("B" & RowNo)
If pw = Me.txtLogin Then
'continue
txt1.Value = "yes"
Else
GoTo ErrorHandler
End If
CleanExit:
Set ws = Nothing ' free memory
Application.ScreenUpdating = True ' turn on the screen updating
Exit Sub
ErrorHandler:
MsgBox "Unable to match ID, enter valid ID.", vbOKOnly
GoTo CleanExit
End Sub
@siddarthRout
Private Sub cmdLogin_Click()
Dim RowNo As Long
Dim Id As String, pw As String
Dim ws As Worksheet
Dim aCell As range
On Error GoTo ErrorHandler
Application.ScreenUpdating = True
Set ws = Worksheets("Details")
Id = LCase(Me.txtLogin)
Set aCell = ws.Columns(1).Find(What:=Id, LookIn:=xlValues, _
LookAt:=xlWhole, SearchOrder:=xlByRows, SearchDirection:=xlNext, _
MatchCase:=False, SearchFormat:=False)
'~~> If match found
If Not aCell Is Nothing Then
RowNo = aCell.Row
'~~> Rest of your code. For example if the password is
'~~> Stored in Col B then
Debug.Print aCell.Offset(, 1)
Unload Me
FrmMenu.Show
'~~> You can then use the above aCell.Offset(, 1) to
'~~> match the password which the user entered
Else '<~~ If not found
MsgBox "Unable to match ID, enter valid ID.", vbOKOnly
End If
CleanExit:
Set ws = Nothing
Application.ScreenUpdating = True
Exit Sub
ErrorHandler:
MsgBox Err.Description
Resume CleanExit
End Sub
source to share
TEST AND TRIP
Is this what you are trying?
CODE
Option Explicit
Private Sub cmdLogin_Click()
Dim RowNo As Long
Dim Id As String, pw As String
Dim ws As Worksheet
Dim aCell As Range
On Error GoTo ErrorHandler
If Len(Trim(txtLogin)) = 0 Then
txtLogin.SetFocus
MsgBox "Username cannot be empty"
Exit Sub
End If
If Len(Trim(txtPassword)) = 0 Then
txtPassword.SetFocus
MsgBox "Password cannot be empty"
Exit Sub
End If
Application.ScreenUpdating = False
Set ws = Worksheets("User&Pass")
Id = LCase(Me.txtLogin)
Set aCell = ws.Columns(1).Find(What:=Id, LookIn:=xlValues, _
LookAt:=xlWhole, SearchOrder:=xlByRows, SearchDirection:=xlNext, _
MatchCase:=False, SearchFormat:=False)
'~~> If match found
If Not aCell Is Nothing Then
RowNo = aCell.Row
If Me.txtPassword = aCell.Offset(, 1) Then
FrmMenu.Show
Unload Me
Else
MsgBox "Unable to match UserID or PasswordID, Please try again", vbOKOnly
End If
Else '<~~ If not found
MsgBox "Unable to match UserID or PasswordID, Please try again", vbOKOnly
End If
CleanExit:
Set ws = Nothing
Application.ScreenUpdating = True
Exit Sub
ErrorHandler:
MsgBox Err.Description
Resume CleanExit
End Sub
Advice
Never let your user know (from a security standpoint) what went wrong - the username or password. Always show general message like "Unable to match user ID or password, please try again" :)
NTN
Sid
source to share
Another way
On Error Resume Next
If Me.password <> Application.VLookup(Me.username, Sheet1.Cells(1, 1).CurrentRegion, 2, False) Then
MsgBox ("incorrect")
Exit Sub
Else
MsgBox ("Correct Password Entered")
End If
Also, you will need to make sure all of your sheets are xlSheetVeryHidden from the start to combat disabled macros and hide them as part of your successful login. You will also want to set a password in your VBA project to prevent people from opening sheets. However, keep in mind that Excel is about as reliable as a wet paper bag;)
source to share