How to set as default the Silverlight 4?

How to set as default the Silverlight 4?

Hi ,Veronica Winslet

You want to set as default silverlight 4 , for this you have follow these steps.

First you should find where the backing property was not being updated prior to the button click occurring (as in all MVVM patterns)….

Note: peer.SetFocus();

Edit: Added XAML example.

public static class DefaultButtonService

{

    public static DependencyProperty DefaultButtonProperty =

          DependencyProperty.RegisterAttached("DefaultButton",

                                              typeof(Button),

                                              typeof(DefaultButtonService),

                                              new PropertyMetadata(null, DefaultButtonChanged));

    private static void DefaultButtonChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) {

        var uiElement = d as UIElement;

        var button = e.NewValue as Button;

        if (uiElement != null && button != null) {

            uiElement.KeyUp += (sender, arg) => {

                var peer = new ButtonAutomationPeer(button);

                if (arg.Key == Key.Enter) {

                    peer.SetFocus();

                    uiElement.Dispatcher.BeginInvoke((Action)delegate {

                        var invokeProv =

                            peer.GetPattern(PatternInterface.Invoke) as IInvokeProvider;

                        if (invokeProv != null)

                            invokeProv.Invoke();

                    });

                }

            };

        }

    }

    public static Button GetDefaultButton(UIElement obj) {

        return (Button)obj.GetValue(DefaultButtonProperty);

    }

    public static void SetDefaultButton(DependencyObject obj, Button button) {

        obj.SetValue(DefaultButtonProperty, button);

    }      

}

How to apply in XAML:

<StackPanel>

    <TextBox DinnerConfig:DefaultButtonService.DefaultButton="{Binding ElementName=MyButton}"

                Text="Press Enter" />

    <Button x:Name="MyButton"

            Content="Click me" />

</StackPanel>

It works fine for me.