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vb question
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Original Message
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Name: jlittle
Date: April 10, 2005 at 16:41:20 Pacific
Subject: vb questionOS: win xp proCPU/Ram: 2.6ghz p4/512mb |
Comment: Simple at least to most of the people here. Anyway I need to write a simple password validation program. The password is set in the code. My problem is that after 3 attempts at the pass the program is supposed to shut down. I am having problems setting a counter. After 3 attempts it just keeps letting me enter a password. Here is the code I have for the program. Any suggestions would help this noob greatly. Thanks. Dim pass As Integer Dim valid As String
valid = "xyz" If Me.txtUser.Text = "" Then MsgBox "enter a username" Me.txtUser.SetFocus End If If CStr(Me.txtPass.Text) = "xyz" Then MsgBox "access granted" End If If CStr(Me.txtPass.Text) <> "xyz" Then MsgBox "invalid password" Me.txtPass.Text = "" Me.txtPass.SetFocus pass = pass + 1 If pass > 3 Then MsgBox " you lose, do not pass go do not collect two hundred dollars" End If End If
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Response Number 1
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Name: bcalvanese
Date: April 10, 2005 at 18:27:12 Pacific
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Reply: (edit) Dim pass As Integer Dim valid As String These need to be declared in the declaration ssection or the form load section. By putting them in the On_Click event you are re dimming and setting them to 0 and "xyz" every time you click on the button. Try this code in the On_Click event... Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click valid = "xyz" If Me.txtUser.Text = "" Then MsgBox("enter a username") Me.txtUser.Focus() End If If CStr(Me.txtPass.Text) = "xyz" Then MsgBox("access granted") End If Select Case (CStr(Me.txtPass.Text)) Case "xyz" MsgBox("access granted") Case Else If pass < 3 Then MsgBox("invalid password") Me.txtPass.Text = "" Me.txtPass.Focus() pass = pass + 1 Else MsgBox(" you lose, do not pass go do not collect two hundred dollars") End End If End Select End Sub I used VB.NET so you may have to tweek the syntax a little. Like Focus() I believe is SetFocus in prior versions. Hope this helps... Bob
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