Cette documentation est archivée et n’est pas conservée.

UIElement.IsEnabled, propriété

Gets or sets a value indicating whether this element is enabled in the user interface (UI). This is a dependency property.

Espace de noms: System.Windows
Assembly : PresentationCore (dans presentationcore.dll)
Espace de noms XML :  http://schemas.microsoft.com/winfx/2006/xaml/presentation

public bool IsEnabled { get; set; }
/** @property */
public final boolean get_IsEnabled ()

/** @property */
public void set_IsEnabled (boolean value)

public final function get IsEnabled () : boolean

public function set IsEnabled (value : boolean)

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

Valeur de la propriété

true if the element is enabled; otherwise, false. The default value is true.

Identifier field

IsEnabledProperty

Metadata properties set to true

None

Note that this property is influenced by class-specific implementations of IsEnabledCore on particular elements, often at runtime. Therefore, the default value listed here is sometimes not effective. For instance, a ScrollBar will be IsEnabled false whenever it is determined that there is no need to support a scrollbar. Attempting to set this value will also potentially be overridden by the value returned by IsEnabledCore.

Elements that are not enabled do not participate in hit testing or focus and therefore will not be sources of input events.

The following example shows a handler on one button that when executed will set IsEnabled false on another named button b1.

public partial class RoutedEventAddRemoveHandler {
    void MakeButton(object sender, RoutedEventArgs e)
    {
        Button b2 = new Button();
        b2.Content = "New Button";
        // Associate event handler to the button. You can remove the event 
        // handler using "-=" syntax rather than "+=".
        b2.Click  += new RoutedEventHandler(Onb2Click);
        root.Children.Insert(root.Children.Count, b2);
        DockPanel.SetDock(b2, Dock.Top);
        text1.Text = "Now click the second button...";
        b1.IsEnabled = false;
    }
    void Onb2Click(object sender, RoutedEventArgs e)
    {
        text1.Text = "New Button (b2) Was Clicked!!";
    }

Microsoft .NET Framework 3.0 est pris en charge sur Windows Vista, Microsoft Windows XP SP2 et Windows Server 2003 SP1.

.NET Framework

Prise en charge dans : 3.0
Afficher: