Command Extensions

Provides Command/CommandParameter attached properties for common scenarios.

Attached Properties

Property	Type	Description
Command	ICommand	Sets the command to execute when TextBox/PasswordBox enter key is pressed, ListViewBase.ItemClick, NavigationView.ItemInvoked, and ItemsRepeater item tapped.
CommandParameter	ICommand	Sets the parameter to pass to the Command property.

Command on TextBox/PasswordBox*: Having this set will also cause the keyboard dismiss on enter. Command on ListView*: IsItemClickEnabled must also be set to true for this to work.

Remarks

• For Command, the relevant parameter is also provided for the CanExecute and Execute call:

  Unless CommandParameter is set, which replaces the following.

  • TextBox.Text
  • PasswordBox.Password
  • ItemClickEventArgs.ClickedItem from ListView.ItemClick
  • NavigationViewItemInvokedEventArgs.InvokedItem from NavigationView.ItemInvoked
  • ItemsRepeater's item root's DataContext

Usage

<!-- Include the following XAML namespace to use the samples below -->
xmlns:utu="using:Uno.Toolkit.UI"
...

<!-- Execute command on enter -->
<PasswordBox utu:CommandExtensions.Command="{Binding Login}" />

<!-- ListView item click-->
<ListView ItemsSource="123"
          IsItemClickEnabled="True"
          utu:CommandExtensions.Command="{Binding UpdateSelection}" />

<!-- NavigationView item invoke -->
<NavigationView utu:CommandExtensions.Command="{Binding Navigate}">
    <NavigationView.MenuItems>
        <NavigationViewItem Content="Apple" />
        <NavigationViewItem Content="Banana" />
        <NavigationViewItem Content="Cactus" />
    </NavigationView.MenuItems>
</NavigationView>

<muxc:ItemsRepeater ItemsSource="123" utu:CommandExtensions.Command="{Binding UpdateSelection}" />