Binding a DataContext inside ListView-CodePudding

I'm trying to set a DataContext of a UserControl (Panel.xaml/PanelViewModel.cs) through a ListView of another control (PanelList.xaml/PanelListViewModel.cs).

I have the following ViewModel:

public class PanelListViewModel
    {
        public List<PanelViewModel> Apps { get; set; } = new List<PanelViewModel>
        {
            new PanelViewModel
            {
                ApplicationName = "App 1",
                ApplicationVersion = "v. 1.0.3",
                IsInstalled = true
            },
            new PanelViewModel
            {
                ApplicationName = "App 2",
                ApplicationVersion = "v. 1.0.3",
                IsInstalled = false
            }
        };
    }

And have the following UserControl:

<UserControl.DataContext>
    <vm:PanelListViewModel/>
</UserControl.DataContext>

<ListView ItemsSource="{Binding Apps}">

        <ListView.ItemTemplate>

            <DataTemplate>

                    <local:Panel DataContext="{Binding}"
                                           VerticalAlignment="Center"
                                           HorizontalAlignment="Center"/>

            </DataTemplate>

        </ListView.ItemTemplate>

    </ListView>

It works at first in the designer preview window in VS, but as soon as I build it, the DataContext Binding doesn't work anymore. Please help :)

CodePudding user response：

Maybe this helps:

<ListView ItemsSource="{Binding Apps}">
                <ListView.ItemTemplate>
                    <DataTemplate>
                            <local:Panel DataContext="{Binding RelativeSource={RelativeSource AncestorType=ListView},Path=ItemsSource}"
                                                   VerticalAlignment="Center"
                                                   HorizontalAlignment="Center"/>
                    </DataTemplate>
                </ListView.ItemTemplate>
            </ListView>

DataContext="{Binding RelativeSource={RelativeSource AncestorType=ListView},Path=DataContext.Apps}"

CodePudding user response：

Can you set a "x:Name" for the ListView and try the following code in the load event, maybe that helps:

C# Code:

myListView.DataContext = Apps;

XAML Code:

<ListView ItemsSource="{Binding Apps}" x:Name="MyListView">