lepoco / lepoco/wpfui

NavigationView - MenuItemsSource Binding issue when used within a UserControl

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bug
Dominant language
C#
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Description

Describe the bug

When a NavigationView control is set inside a UserControl View, the MenuItemsSource doesn't reflect the binding on the UI

image

image

Other properties are correctly set from the same ViewModel (TitleBar Title and IsPaneToggleVisible from the NavigationView control)

The MenuItemsSource property binding functions properly when used directly in the MainWindow as a View.

To Reproduce

See https://github.com/Coloris/wpfsandbox/tree/main

Expected behavior

The Binding should work and the UI display the MenuItems

Screenshots

No response

OS version

Windows 11 22h2 - Version 22621.1848
Visual Studio 2022 - Version 17.6.4

.NET version

7.0

WPF-UI NuGet version

3.0.0-preview.3

Additional context

No response

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with the linked wpfsandbox reproduction and compare NavigationView.MenuItemsSource binding inside a UserControl with the working MainWindow case. Investigate the NavigationView and UserControl binding context, using the reported TitleBar Title and IsPaneToggleVisible bindings as comparison points. Done means the UI displays the bound menu items when NavigationView is hosted in a UserControl.

Written by the indexing model from the issue text.

Assessment

Tech stack
csharp
Domain
desktop
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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