[WinUI] Command on TableView only invokes once.

[mthanson8333]

Description

Downloaded sample code from https://github.com/dotnet/maui-samples/tree/main/8.0/UserInterface/Views/CollectionViewDemos. Tried to run CollectionView sample code under Windows emulator and the menu on the MainPage did not work as expected. Under windows when the app starts I click a menu item and are taken to the proper page. When I return to menu and click on another menu item, nothing happens. This happens under Windows emulator. On Android app works as expected. Not building for Apple. I checked community and the closes article I found #2003 did not answer my question.

Steps to Reproduce

1. Download source code from https://github.com/dotnet/maui-samples/tree/main/8.0/UserInterface/Views/CollectionViewDemos.
2. Compile and run code under Windows emulator.
3. Click on a menu item. You will be taken to the proper page.
4. Return to menu and click on other menu items. Nothing happens

Link to public reproduction project repository

https://github.com/dotnet/maui-samples/tree/main/8.0/UserInterface/Views/CollectionViewDemos

Version with bug

8.0.82 SR8.2

Is this a regression from previous behavior?

Not sure, did not test other versions

Last version that worked well

Unknown/Other

Affected platforms

Windows

Affected platform versions

Windows 11 version 22631.4249

Did you find any workaround?

Yes. MainPage.Xaml

<ListView ItemsSource="{x:Static local:PageDataViewModel.All}"
              ItemSelected="OnListViewItemSelected"
              HasUnevenRows="True">
		<!-- Allow rows to adjust height based on content -->
		<ListView.ItemTemplate>
			<DataTemplate>
				<ViewCell>
					<Frame Margin="0,0,0,10" Padding="0" HasShadow="False" BorderColor="Transparent">
						<StackLayout>
							<Label Text="{Binding Title}" FontSize="Medium" VerticalOptions="Start" />
							<Label Text="{Binding Description}" FontSize="Small" TextColor="Gray" LineBreakMode="WordWrap" VerticalOptions="Start" />
						</StackLayout>
					</Frame>
				</ViewCell>
			</DataTemplate>
		</ListView.ItemTemplate>
	</ListView>

MainPage.cs:

private async void OnListViewItemSelected(object sender, SelectedItemChangedEventArgs args)
        {
            (sender as ListView).SelectedItem = null;

            if (args.SelectedItem != null)
            {
                PageDataViewModel pageData = args.SelectedItem as PageDataViewModel;
                Page page = (Page)Activator.CreateInstance(pageData.Type);
                await Navigation.PushAsync(page);
            }
        }

PageDataViewModel.cs

public class PageDataViewModel
    {
        public PageDataViewModel(Type type, string title, string description)
        {
            Type = type;
            Title = title;
            Description = description;
        }

        public Type Type { private set; get; }

        public string Title { private set; get; }

        public string Description { private set; get; }

        static PageDataViewModel()
        {
            All = new List<PageDataViewModel>
            {
                new PageDataViewModel(typeof(VerticalListPage), "Vertical List",
                                      "DataTemplate"),
            };
        }

        public static IList<PageDataViewModel> All { private set; get; }
    }

Relevant log output

No response

[drasticactions]

I can reproduce this.

https://github.com/dotnet/maui-samples/blob/main/8.0/UserInterface/Views/CollectionViewDemos/CollectionViewDemos/Views/MainPage.xaml#L6-L213

That menu is a TableView, and apparently once you invoke one event, you can't invoke another one, even if it's a different command. I don't think the issue you linked is related to this though: The construction of that view is different.

[mthanson8333]

Closing issue since question is asked at #21112

[umeshkamble]

@mthanson8333
I have tried below code its works.
Return to menu and click on other menu items. Its working
<TableView x:Name="tableList" Intent="Menu"> <TableRoot> <TableSection Title="Layout"> <TextCell Command="{Binding Path=BindingContext.NavigateCommand, Source={x:Reference tableList}}" CommandParameter="{x:Type views:VerticalListTextPage}" Detail="Text" Text="Vertical list" /> </TableSection> </TableRoot> </TableView>

[mthanson8333]

Thanks for your help. I closed the issue since ticket #21112 is already addressing issue.