MenuItem.IsSubmenuOpen Property

public:
 property bool IsSubmenuOpen { bool get(); void set(bool value); };

[System.ComponentModel.Bindable(true)]
[System.ComponentModel.Browsable(false)]
public bool IsSubmenuOpen { get; set; }

[<System.ComponentModel.Bindable(true)>]
[<System.ComponentModel.Browsable(false)>]
member this.IsSubmenuOpen : bool with get, set

Public Property IsSubmenuOpen As Boolean

Property Value

true if the submenu of the MenuItem is open; otherwise, false. The default is false.

Attributes

BindableAttribute BrowsableAttribute

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.

<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);
    }
}

Private Sub FileMenu_Opened(ByVal sender As Object, ByVal e As RoutedEventArgs)
    If sender Is e.Source Then
        recentFiles.IsSubmenuOpen = True
        Keyboard.Focus(recentFiles)
    End If
End Sub

Remarks

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

Dependency Property Information

Applies to