Accessing WPF Component inside DataTemplate with Data Binding
I have several UI elements in DataTemplate
bound to ObservableCollection
Video objects. I want to call a method of the Video object when I click on the ContextMenuItem [Test] of the corresponding UI item.
Here is my XAML:
<ItemsControl Name="VideoUIElment" >
<ItemsControl.ItemTemplate>
<DataTemplate x:Uid="videoTemplate">
<Border CornerRadius="10" Padding="10, 10" Background="Silver" >
<TextBlock Name="label" Text="{Binding Name}" FontSize="30" Foreground="Black" VerticalAlignment="Center" HorizontalAlignment="Center">
<TextBlock.ContextMenu>
<ContextMenu>
<MenuItem Header="[TEST]" Name="Test" Click="Test_Click"/>
</ContextMenu>
</TextBlock.ContextMenu>
</TextBlock>
</Border>
</DataTemplate>
</ItemsControl.ItemTemplate>
</ItemsControl>
Here is the collection:
public MainWindow()
{
//ctor
InitializeComponent();
pathToLauncher = string.Empty;
videos = new ObservableCollection<Video>();
VideoUIElment.ItemsSource = videos;
}
I know that for this I need to determine which Video object inside the collection is bound to a specific UI element I click and I could think of some trick to achieve this, but I would like to do it gracefully and intelligently. I've already seen some suggestions, but none of them seem to apply here. I guess it should be something lightweight, but I'm not very good at WPF yet.
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Try the following:
MainWindow
public partial class MainWindow : Window
{
ObservableCollection<Video> videos { get; set; }
public MainWindow()
{
InitializeComponent();
videos = new ObservableCollection<Video>
{
new Video {Name = "Video 1"},
new Video {Name = "Video 2"},
new Video {Name = "Video 3"}
};
VideoUIElment.ItemsSource = videos;
}
private void Test_Click(object sender, RoutedEventArgs e)
{
MenuItem item = (MenuItem)sender;
Video video = (Video)item.DataContext;
MessageBox.Show(video.VideoMethod());
}
}
Video:
public class Video
{
public string Name { get; set; }
public string VideoMethod()
{
return string.Format(" Clicked {0}", Name);
}
}
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