WPF How to acces and edit the MenuItems of a Menu?

Question

Hello!

I am currently switching my Windows Forms project to WPF and am encountering several issues, one of which is the fact that I can't seem to manage accessing the MenuItems of a menu I have programmatically. I mean, all that I can acces through [menuName].Items[index] is the header, but I want to add events and even trigger a renderTransformation. Casting that code to MenuItem simply returns an error stating that "System.String" cannot be converted to MenuItem...

Is there at least a way to do something like this?

Thank you!

EDIT:

This is tha XAML part:

<Menu Height="40" HorizontalAlignment="Left" Margin="50,80,0,0" Name="days_menu" VerticalAlignment="Top" Width="390" VerticalContentAlignment="Center" HorizontalContentAlignment="Center" FontWeight="Bold" Background="{x:Null}">
       <Menu.RenderTransform>
         <RotateTransform CenterX="0" CenterY="0" Angle="90">
       </RotateTransform>
                </Menu.RenderTransform>
            </Menu>

Through the days_menu.Items.Add(STRING) method I add the menu Items. That is all that I have by now.

Answer 1

Hi,

Is it possible to paste your code here?

/Srinivas

Answer 2

Your main problem is you are trying to convert your understanding of MenuItems from WinForm to WPF.

They are two different things.

The "Item" in the Menu.Items collection is a class representing the object behind the MenuItem (in your case it is a string) not the MenuItem itself.

  

var myValue = days_menu.Items[0] as string;

  

I would advise you take a step back and read up a bit more on WPF menus :

http://stackoverflow.com/questions/291522/wpf-how-can-you-add-a-new-menuitem-to-a-menu-at-runtime

http://www.c-sharpcorner.com/UploadFile/munnamax/WPFMenuItem09032007085818AM/WPFMenuItem.aspx

http://msdn.microsoft.com/en-us/library/ms747430.aspx

http://p2p.wrox.com/book-wpf-programmers-reference-windows-presentation-foundation-c-2010-net-4/81440-creating-menu-programmatically-wpf-c.html

  

Regards,
Pete

---

#PEJL

Answer 3

Are you trying to access the items in code behind?

        <Menu Name="menu">
            <MenuItem Header="File">
                <MenuItem Header="Open"/>
                <MenuItem Header="New"/>
            </MenuItem>
        </Menu>

            var menuItem = (MenuItem)menu.Items[0];
            menu.MouseDown += new MouseButtonEventHandler(menu_MouseDown);

This works for me, Let me know if your problem is misunderstood. 

Hope it helps!

---

Regards Vallarasu S. FSharpMe.blogspot.com

Answer 4

Thank you! I have solved it now :)