How to add a menu to an app bar (XAML) (Windows)

Artikel
03/01/2016

[ This article is for Windows 8.x and Windows Phone 8.x developers writing Windows Runtime apps. If you’re developing for Windows 10, see the latest documentation ]

When you add commands to an app bar, consider whether your command sets would work better in a command menu. Menus let you present more options in less space and include interactive controls. In this example, the Sort menu pops up a simple list that makes choosing options easy.

See this feature in action as part of our App features, start to finish series: Windows Store app UI, start to finish

What you need to know

Technologies

MenuFlyout

Prerequisites

Instructions

Step 1: Add an app bar to your app

For more info, see Quickstart: Adding app bars

Here, we add a CommandBar as the bottom app bar.

<Page.BottomAppBar>
    <CommandBar>
        ...
    </CommandBar>
</Page.BottomAppBar>

Step 2: Add an AppBarButton to the app bar.

Add an AppBarButton and set the Icon and Label properties.

...
    <CommandBar>
        <AppBarButton Icon="Sort" Label="Sort">
            .... 
        </AppBarButton>
    </CommandBar>
...

Step 3: Add a MenuFlyout to the AppBarButton

Add a MenuFlyout to the button's Flyout property. The flyout opens automatically when the button is clicked.

...
        <AppBarButton Icon="Sort" Label="Sort">
            <AppBarButton.Flyout>
                <MenuFlyout>
                    ....
                </MenuFlyout>
            </AppBarButton.Flyout>
        </AppBarButton>
...

Step 4: Add MenuFlyoutItems to the MenuFlyout

Add a MenuFlyoutItem for each choice in the menu and set its Text property. Handle its Click event or assign a Command to take action when the user makes a choice.

...
                <MenuFlyout>
                    <MenuFlyoutItem Text="By rating" Click="MenuFlyoutItem_Click" Tag="rating"/>
                    <MenuFlyoutItem Text="By match" Click="MenuFlyoutItem_Click" Tag="match"/>
                    <MenuFlyoutItem Text="By distance" Click="MenuFlyoutItem_Click" Tag="distance"/>
                </MenuFlyout>
...

Complete example

Here's the final XAML for the app bar and the event handler code for the MenuFlyoutItem.Click event.

<Page.BottomAppBar>
    <CommandBar>
        <AppBarButton Icon="Sort" Label="Sort">
            <AppBarButton.Flyout>
                <MenuFlyout>
                    <MenuFlyoutItem Text="By rating" Click="MenuFlyoutItem_Click" Tag="rating"/>
                    <MenuFlyoutItem Text="By match" Click="MenuFlyoutItem_Click" Tag="match"/>
                    <MenuFlyoutItem Text="By distance" Click="MenuFlyoutItem_Click" Tag="distance"/>
                </MenuFlyout>
            </AppBarButton.Flyout>
        </AppBarButton>
    </CommandBar>
</Page.BottomAppBar>

private void MenuFlyoutItem_Click(object sender, RoutedEventArgs e)
{
    MenuFlyoutItem selectedItem = sender as MenuFlyoutItem;

    if (selectedItem != null)
    {
        if (selectedItem.Tag.ToString() == "rating")
        {
            SortByRating();
        }
        else if (selectedItem.Tag.ToString() == "match")
        {
            SortByMatch();
        }
        else if (selectedItem.Tag.ToString() == "distance")
        {
            SortByDistance();
        }
    }
}

Quickstart: Adding app bars