[Bug] Updating TabViewItem Content does not change the displayed content

[adammeaney]

Description

If I have a tab selected and change its content, I do not see an update to that content until I switch tabs and then switch back.

Steps to Reproduce

1. Assign TabViewItems to a TabView
2. Update the content of the selected tab
3. Switch tabs and then switch back to see the update happened.

Expected Behavior

Update happens immediately

Actual Behavior

Update happens only when refreshing the tab somehow

Basic Information

• Version with issue: Commit 43b8dbd
• Last known good version: Never
• IDE: VS 2019 16.7.7
• Platform Target Frameworks: Not relevant, Toolkit Forms code problem
  • iOS:
  • Android:
  • UWP:
• Android Support Library Version:
• Nuget Packages:
• Affected Devices:

Workaround

Reproduction imagery

Reproduction Link

https://github.com/adammeaney/XamarinCommunityToolkit/tree/UpdateTabContent

[Necrolis]

I ran into this same issue, and found a possible work around for anyone thats stuck with this:

Create a top level ContentView in the TabItemView and then alter the Content of that top level ContentView. For some reason this seems to correctly update, even though setting the Content of the TabItemView does not.

So far there don't seem to be any noticeable downsides to this.

[sigmarsson]

@adammeaney, @Necrolis haven't checked your code. do you harness Frame class in your project ?