ApplicationBar Class

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

Represents an Application Bar in Windows Phone applications.

Inheritance Hierarchy

System..::.Object
Microsoft.Phone.Shell..::.ApplicationBar

Namespace: Microsoft.Phone.Shell
Assembly: Microsoft.Phone (in Microsoft.Phone.dll)
XMLNS for XAML: Not mapped to an xmlns.

Syntax

<ContentPropertyAttribute("Buttons")> _
Public NotInheritable Class ApplicationBar _
    Implements IApplicationBar
[ContentPropertyAttribute("Buttons")]
public sealed class ApplicationBar : IApplicationBar
<ApplicationBar>
  Buttons
</ApplicationBar>

The ApplicationBar type exposes the following members.

Constructors

Name Description
ApplicationBar Creates a new instance of the ApplicationBar class.

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Properties

Name Description
BackgroundColor Gets or sets the background color of the Application Bar.
Buttons Gets the list of icon buttons that appear on the Application Bar.
DefaultSize Gets the distance that the Application Bar extends into a page when the Mode property is set to Default.
ForegroundColor Gets or sets the foreground color of the Application Bar.
IsMenuEnabled Gets or sets a value that indicates whether the user sees the (optional) menu items when they click the ellipsis to expand the Application Bar.
IsVisible Gets or sets a value that indicates whether the Application Bar is visible.
MenuItems Gets the list of the menu items that appear on the Application Bar.
MiniSize Gets the distance that the Application Bar extends into a page when the Mode property is set to Minimized.
Mode Gets or sets the size of the Application Bar.
Opacity Gets or sets the opacity of the Application Bar.

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Methods

Name Description
Equals(Object) Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
Finalize Allows an object to try to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.)
GetHashCode Serves as a hash function for a particular type. (Inherited from Object.)
GetType Gets the Type of the current instance. (Inherited from Object.)
MemberwiseClone Creates a shallow copy of the current Object. (Inherited from Object.)
ToString Returns a string that represents the current object. (Inherited from Object.)

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Events

Name Description
StateChanged Occurs when the user opens or closes the Application Bar by clicking the ellipsis.

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Remarks

An Application Bar contains between one and four buttons, an ellipsis, and a set of text menu items. For more information, see App bar for Windows Phone.

Examples

The following example creates an Application Bar in XAML that has two icon buttons and two menu items. For the full example, see How to create an app bar using XAML for Windows Phone.

<phone:PhoneApplicationPage.ApplicationBar>
    <shell:ApplicationBar Mode="Default" Opacity="1.0" IsMenuEnabled="True" IsVisible="True">

        <shell:ApplicationBarIconButton Click="Save_Click" IconUri="/Images/save.png" Text="save" />
        <shell:ApplicationBarIconButton Click="Settings_Click" IconUri="/Images/settings.png" Text="settings" />

        <shell:ApplicationBar.MenuItems>
            <shell:ApplicationBarMenuItem Click="MenuItem1_Click" Text="menu item 1" />
            <shell:ApplicationBarMenuItem Click="MenuItem2_Click" Text="menu item 2" />
        </shell:ApplicationBar.MenuItems>

    </shell:ApplicationBar>
</phone:PhoneApplicationPage.ApplicationBar>

The following example creates an Application Bar in code that has one icon button and one menu item. For the full example, see How to create an app bar using code for Windows Phone.

using System;
using System.Windows;
using Microsoft.Phone.Controls;
using Microsoft.Phone.Shell;

namespace HowToCS
{
    public partial class MainPage : PhoneApplicationPage
    {
        // Constructor
        public MainPage()
        {
            InitializeComponent();

            ApplicationBar = new ApplicationBar();

            ApplicationBar.Mode = ApplicationBarMode.Default;
            ApplicationBar.Opacity = 1.0; 
            ApplicationBar.IsVisible = true;
            ApplicationBar.IsMenuEnabled = true;

            ApplicationBarIconButton button1 = new ApplicationBarIconButton();
            button1.IconUri = new Uri("/Images/YourImage.png", UriKind.Relative);
            button1.Text = "button 1";
            ApplicationBar.Buttons.Add(button1);
            button1.Click += new EventHandler(button1_Click);

            ApplicationBarMenuItem menuItem1 = new ApplicationBarMenuItem();
            menuItem1.Text = "menu item 1";
            ApplicationBar.MenuItems.Add(menuItem1);
            menuItem1.Click += new EventHandler(menuItem1_Click);
        }

        private void button1_Click(object sender, EventArgs e)
        {
            MessageBox.Show("Button 1 works!");
            //Do work for your application here.
        }

        private void menuItem1_Click(object sender, EventArgs e)
        {
            MessageBox.Show("Menu item 1 works!");
            //Do work for your application here.
        }
    }
}
Imports Microsoft.Phone.Shell

Partial Public Class MainPage
    Inherits PhoneApplicationPage

    ' Constructor
    Public Sub New()
        InitializeComponent()

        ApplicationBar = new ApplicationBar()

        ApplicationBar.Mode = ApplicationBarMode.Default
        ApplicationBar.Opacity = 1.0
        ApplicationBar.IsVisible = true
        ApplicationBar.IsMenuEnabled = true

        Dim button1 as ApplicationBarIconButton = new ApplicationBarIconButton()
        button1.IconUri = new Uri("/Images/YourImage.png", UriKind.Relative)
        button1.Text = "button 1"
        ApplicationBar.Buttons.Add(button1)
        AddHandler button1.Click, AddressOf button1_Click

        Dim menuItem1 as ApplicationBarMenuItem = new ApplicationBarMenuItem()
        menuItem1.Text = "menu item 1"
        ApplicationBar.MenuItems.Add(menuItem1)
        AddHandler menuItem1.Click, AddressOf menuItem1_Click
    End Sub

    Private Sub button1_Click(ByVal sender As Object, ByVal e As EventArgs)

        MessageBox.Show("Button 1 works!")
        'Do work for your application here.
    End Sub

    Private Sub menuItem1_Click(ByVal sender As Object, ByVal e As EventArgs)

        MessageBox.Show("Menu item 1 works!")
        'Do work for your application here.
    End Sub
End Class

The following example creates an Application Bar that can be reused on multiple pages in your application. For the full example, see How to reuse an app bar on multiple pages for Windows Phone.

<Application.Resources>

    <shell:ApplicationBar x:Key="GlobalAppBar" IsVisible="True" IsMenuEnabled="True">
        <shell:ApplicationBarIconButton IconUri="/Images/appbar_button1.png" Text="Button 1" Click="Button1_Click" />
        <shell:ApplicationBarIconButton IconUri="/Images/appbar_button2.png" Text="Button 2" Click="Button2_Click" />
        <shell:ApplicationBar.MenuItems>
            <shell:ApplicationBarMenuItem Text="MenuItem 1" Click="MenuItem1_Click" />
            <shell:ApplicationBarMenuItem Text="MenuItem 2" Click="MenuItem2_Click" />
        </shell:ApplicationBar.MenuItems>
    </shell:ApplicationBar>

</Application.Resources>

The following example creates two Application Bars that can be used in a single pivot control in your application. For the full example, see How to use different app bars in a single Pivot control for Windows Phone.

<Application.Resources>

    <shell:ApplicationBar x:Key="AppBar1" IsVisible="True" IsMenuEnabled="True">
        <shell:ApplicationBarIconButton IconUri="/Images/appbar_button1.png" Text="Button 1" Click="Button1_Click" />
        <shell:ApplicationBar.MenuItems>
            <shell:ApplicationBarMenuItem Text="MenuItem 1" Click="MenuItem1_Click" />
        </shell:ApplicationBar.MenuItems>
    </shell:ApplicationBar>

    <shell:ApplicationBar x:Key="AppBar2" IsVisible="True" IsMenuEnabled="True">
        <shell:ApplicationBarIconButton IconUri="/Images/appbar_button1.png" Text="Button 1" Click="Button1_Click" />
        <shell:ApplicationBarIconButton IconUri="/Images/appbar_button2.png" Text="Button 2" Click="Button2_Click" />
        <shell:ApplicationBar.MenuItems>
            <shell:ApplicationBarMenuItem Text="MenuItem 1" Click="MenuItem1_Click" />
            <shell:ApplicationBarMenuItem Text="MenuItem 2" Click="MenuItem2_Click" />
        </shell:ApplicationBar.MenuItems>
    </shell:ApplicationBar>

</Application.Resources>

Version Information

Windows Phone OS

Supported in: 8.1, 8.0, 7.1, 7.0

Platforms

Windows Phone

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

See Also

Reference

Microsoft.Phone.Shell Namespace

Other Resources

How to create an app bar using XAML for Windows Phone