hide TABS if not specified VB.NET 2003/2010

Posted on 2011-03-11
Last Modified: 2012-05-11
Hi Experts,
I work from a Winform with TabControl + 10 tabs.

my solution now has random tabs on form_load (thanks to previous solution)

Now i want to only limit/show only 5 of them random TABS at any one time. So randomize 10 tabs but only show 5.

Question by:RobertoFreemano
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 4
  • 2
LVL 86

Expert Comment

by:Mike Tomlinson
ID: 35113417
Try something like:
Public Class Form1

    Private R As New Random
    Private tabs As New ArrayList

    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        For Each tp As TabPage In TabControl1.TabPages

    End Sub

    Private Sub ShowRandomTabs(ByVal number As Integer)

        Dim temp As New ArrayList
        For Each tp As Object in tabs

        Dim index As Integer
        For i As Integer = 1 to number
            If temp.Count > 0 Then
                index = R.Next(0, temp.Count)
            End If
    End If

End Class

Open in new window


Author Comment

ID: 35114934
Hi Idle_Mind,

I get the following errors:
An unhandled exception of type 'System.NullReferenceException' occurred in mscorlib.dll

Additional information: [Resource lookup failed - infinite recursion detected.  Resource name: Arg_NullReferenceException]

There is no source code available for the current location. > 0000004c  mov         edi,dword ptr [eax+4]

Author Comment

ID: 35114983
Those errors are from 2003, but if I put this code into Visual Basic 2010 Express - it works fine.
Technology Partners: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!


Author Comment

ID: 35115019
Hi Idle_Mind,

Do you think I should take a leap of faith in Visual Basic 2010 Express to continue developing in this from now on?
LVL 86

Accepted Solution

Mike Tomlinson earned 110 total points
ID: 35116306
I can make your project target the .Net 2.0 framework which is on most machines.

Not sure what is causing that error in 2003.

Author Closing Comment

ID: 35116355
Thanks Idle_mind ;)

Featured Post

Free Tool: SSL Checker

Scans your site and returns information about your SSL implementation and certificate. Helpful for debugging and validating your SSL configuration.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

The ECB site provides FX rates for major currencies since its inception in 1999 in the form of an XML feed. The files have the following format (reducted for brevity) (CODE) There are three files available HERE (…
Calculating holidays and working days is a function that is often needed yet it is not one found within the Framework. This article presents one approach to building a working-day calculator for use in .NET.
In this video, viewers are given an introduction to using the Windows 10 Snipping Tool, how to quickly locate it when it's needed and also how make it always available with a single click of a mouse button, by pinning it to the Desktop Task Bar. Int…
This tutorial will teach you the special effect of super speed similar to the fictional character Wally West aka "The Flash" After Shake : All lightning effects with instructions : http://www.mediaf…

632 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question