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MenuItem.IsSubmenuOpen Property

.NET Framework 4

Gets or sets a value that indicates whether the submenu of the MenuItem is open.

Namespace: System.Windows.Controls
Assembly: PresentationFramework (in PresentationFramework.dll)
XMLNS for XAML: http://schemas.microsoft.com/winfx/2006/xaml/presentation, http://schemas.microsoft.com/netfx/2007/xaml/presentation

Syntax

C++

[BrowsableAttribute(false)]
[BindableAttribute(true)]
public bool IsSubmenuOpen { get; set; }

XAML Attribute Usage

<object IsSubmenuOpen="bool" .../>

Property Value

Type: System.Boolean
true if the submenu of the MenuItem is open; otherwise, false. The default is false.

Dependency Property Information

Identifier field	IsSubmenuOpenProperty
Metadata properties set to true	BindsTwoWayByDefault

Remarks

When IsSubmenuOpen is set to true, mouse capture is set to the MenuItem and its subtree.

Examples

The following example shows how to open a submenu of a MenuItem. In this example, the MenuItem called fileMenu contains a MenuItem called recentFiles that has a submenu. When fileMenu is opened, the SubmenuOpened event is raised and the FileMenu_Opened event handler opens the submenu of recentFiles.

XAML


<Menu>
  <MenuItem Name="fileMenu"
            Header="_File"
            SubmenuOpened="FileMenu_Opened">

    <MenuItem Name="recentFiles" 
              Header="Recent files">

      <MenuItem Header="file 1"
                IsCheckable="True"/>

      <MenuItem Header="file 2"
                IsCheckable="True"/>
    </MenuItem>
    <Separator/>
    <MenuItem Name="closeMenu" 
              Header="Close all Files"/>
  </MenuItem>
</Menu>


private void FileMenu_Opened(object sender, RoutedEventArgs e)
{
    if (sender == e.Source)
    {
        recentFiles.IsSubmenuOpen = true;
        Keyboard.Focus(recentFiles);
    }
}

Version Information

.NET Framework

Supported in: 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Platforms

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Reference

MenuItem Class

System.Windows.Controls Namespace

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