CODEWITHSUNDEEP
silverlightwindows-phone-7
Nick Heiner
Nick Heiner

Reputation: 122610

Silverlight context menu: how to determine which menu was clicked?

I have the following context menu:

                <ListBox x:Name="sectionList" Margin="56,8,15,0" FontSize="64" SelectionChanged="SectionList_SelectionChanged">
                    <ListBox.ItemTemplate>
                        <DataTemplate>
                            <StackPanel>
                                <toolkit:ContextMenuService.ContextMenu>
                                    <toolkit:ContextMenu>
                                        <toolkit:MenuItem Header="Hide this section from this list" Click="ContextMenuItem_Click" />
                                    </toolkit:ContextMenu>
                                </toolkit:ContextMenuService.ContextMenu>
                                <TextBlock Text="{Binding DisplayName}" />
                            </StackPanel>
                        </DataTemplate>
                    </ListBox.ItemTemplate>
                </ListBox>

As you can see, each displayed item has its own context menu. Each context menu is hooked up to the same event handler:

    private void ContextMenuItem_Click(object sender, RoutedEventArgs e)
    {

    }

From this method, how can I tell which context menu was clicked? I want to know what the DataContext for the corresponding DataTemplate is.

Upvotes: 0

Views: 1039

Answers (3)

Matt Lacey
Matt Lacey

Reputation: 65586

You can get the item the ListBoxItem is bound to by casting the sender as a FrameworkElement to get access to the DataContext:

(sender as FrameworkElement).DataContext

You can then cast this to the appropriate model class and access the details you need. e.g.:

((sender as FrameworkElement).DataContext as ItemViewModel).DisplayName

Upvotes: 4

MarkXA
MarkXA

Reputation: 4384

If you use <StackPanel Tag="{Binding}"> then ((FrameworkElement)sender).Tag will return the DataContext object (you'll have to cast it before use, of course).

Upvotes: 1

DOK
DOK

Reputation: 32851

If you put a breakpoint inside the event handler ContextMenuItem_Click, you will then be able to examine the properties of sender and e. You will probably find your answer there.

One way to do this is to hover over those words. Another would be to use the Immediate Window. Type in sender and a dot to get intellisense.

Upvotes: 1

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