How do I select a listbox item by its tag in WPF and then disable it.

Hello Everyone,

I am trying to select a listbox item by its tag value and then disabling it. I have no clue on how to this wiht a WPF control. Can someone show me an example on how to achieve this?
Thanks,

Stephane
MrTouyaAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

itsmeandnobodyelseCommented:
I found some sample code which may help.

private:
   void listBox1_SelectedIndexChanged( Object^ /*sender*/, System::EventArgs^ /*e*/ )
   {
      // Get the currently selected item in the ListBox.
      String^ curItem = listBox1->SelectedItem->ToString();

      // Find the string in ListBox2.
      int index = listBox2->FindString( curItem );

      // If the item was not found in ListBox 2 display a message box,
      //  otherwise select it in ListBox2.
      if ( index == -1 )
            MessageBox::Show( "Item is not available in ListBox2" );
      else
            listBox2->SetSelected( index, true );
   }
0
MrTouyaAuthor Commented:
This is what I have to do now. Is there a better way of doing the same?
 

private void MenuButtonState(string MenuButtonName, string State)
{
ListBoxItem CurrentSelectedItem = (ListBoxItem)this.MenuButtons.SelectedItem;
ListBoxItem SelectionToChangeStateOf = (ListBoxItem)this.MenuButtons.FindName(MenuButtonName);
ItemCollection MenuItems = this.MenuButtons.Items;
int IndexToDisable = MenuItems.IndexOf((ListBoxItem)SelectionToChangeStateOf);
int CurrentSelectedIndex = MenuItems.IndexOf((ListBoxItem)CurrentSelectedItem);
MenuButtons.SelectedItem = IndexToDisable;
if (State == "Disabled")
SelectionToChangeStateOf.IsEnabled = false;
else SelectionToChangeStateOf.IsEnabled = true;
MenuButtons.SelectedItem = CurrentSelectedItem;
}
 
Thanks,
0
itsmeandnobodyelseCommented:
Does it work?

>>>> SelectionToChangeStateOf = (ListBoxItem)this.MenuButtons.FindName(MenuButtonName);

Does the FindName return a (reference to a) ListBoxItem or does it return an index? In the latter case you hardly could cast an integer to a ListBoxItem.
0
Cloud Class® Course: Microsoft Windows 7 Basic

This introductory course to Windows 7 environment will teach you about working with the Windows operating system. You will learn about basic functions including start menu; the desktop; managing files, folders, and libraries.

MrTouyaAuthor Commented:
It Works. I have tried other ways, but this is the best way that I have come up with that works.
 
0
itsmeandnobodyelseCommented:
>>>> It Works.

That is good. I personally have only little experience with managed C++ and WPF but I would try simpler code like


private void MenuButtonState(string MenuButtonName, string State)
{
    ListBoxItem SelectionToChangeStateOf = (ListBoxItem)this.MenuButtons.FindName(MenuButtonName);
    if (State == "Disabled")
         SelectionToChangeStateOf.IsEnabled = false;
    else
         SelectionToChangeStateOf.IsEnabled = true;
}

If your code above was working that one should work as well, right?
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
MrTouyaAuthor Commented:
Yep. That is much more elegant.

Thanks,
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Microsoft Development

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.