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AppBar.Opened event

Occurs when the AppBar changes from hidden to visible.

Syntax


public event EventHandler<object> Opened

XAML Attribute Usage


<AppBar Opened="eventhandler"/>

Event information

Delegate	System.EventHandler<Object> [.NET] \| Windows.Foundation.EventHandler<Object> [C++]

Remarks

You can respond to the app bar being opened by handling the Opened event.

Examples

This example shows how to handle the Opened and Closed events. When the app bar is opened, the WebView is replaced with a WebViewBrush. When the app bar is dismissed the WebViewBrush is replaced with the WebView. The button in the app bar refreshes the web page and programmatically dismisses the app bar.

XAML


<Page
    x:Class="AppBarSample.WebViewPage"
    IsTabStop="false"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:AppBarSample"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d">
    
    <Page.BottomAppBar>
        <AppBar x:Name="bottomAppBar" 
                Opened="AppBar_Opened" Closed="AppBar_Closed">
            <Grid>
                <StackPanel Orientation="Horizontal" HorizontalAlignment="Right">
                    <Button Style="{StaticResource RefreshAppBarButtonStyle}"
                            Click="Refresh_Click"/>
                </StackPanel>
            </Grid>
        </AppBar>
    </Page.BottomAppBar>

    <Grid Background="{StaticResource ApplicationPageBackgroundThemeBrush}">
        <Border BorderBrush="Gray" BorderThickness="2" Margin="100,20,100,20">
            <Grid>
                <WebView x:Name="contentView" Source="http://www.contoso.com"/>
                <Rectangle x:Name="contentViewRect"/>
            </Grid>
        </Border>
    </Grid>
</Page>

C++


private void AppBar_Opened(object sender, object e)
{
    WebViewBrush wvb = new WebViewBrush();
    wvb.SourceName = "contentView";
    wvb.Redraw();
    contentViewRect.Fill = wvb;
    contentView.Visibility = Windows.UI.Xaml.Visibility.Collapsed;     
}

private void AppBar_Closed(object sender, object e)
{
    contentView.Visibility = Windows.UI.Xaml.Visibility.Visible;
    contentViewRect.Fill = new SolidColorBrush(Windows.UI.Colors.Transparent);
}

private void Refresh_Click(object sender, RoutedEventArgs e)
{
    contentView.Navigate(new Uri("http://www.contoso.com"));
    bottomAppBar.IsOpen = false;
}

Requirements