CommandManager.RemoveCanExecuteHandler Method
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Detaches the specified CanExecuteRoutedEventHandler from the specified element.
public:
static void RemoveCanExecuteHandler(System::Windows::UIElement ^ element, System::Windows::Input::CanExecuteRoutedEventHandler ^ handler);
public static void RemoveCanExecuteHandler (System.Windows.UIElement element, System.Windows.Input.CanExecuteRoutedEventHandler handler);
static member RemoveCanExecuteHandler : System.Windows.UIElement * System.Windows.Input.CanExecuteRoutedEventHandler -> unit
Public Shared Sub RemoveCanExecuteHandler (element As UIElement, handler As CanExecuteRoutedEventHandler)
Parameters
- element
- UIElement
The element to remove handler
from.
- handler
- CanExecuteRoutedEventHandler
The can execute handler.
Exceptions
element
or handler
is null
.
Examples
The following example detaches a CanExecuteRoutedEventHandler and an ExecutedRoutedEventHandler which had previously been attached to a Button.
CommandManager.RemoveExecutedHandler(helpButton, HelpCmdExecuted);
CommandManager.RemoveCanExecuteHandler(helpButton, HelpCmdCanExecute);
CommandManager.RemoveExecutedHandler(helpButton, AddressOf HelpCmdExecuted)
CommandManager.RemoveCanExecuteHandler(helpButton, AddressOf HelpCmdCanExecute)
Applies to
See also
Maklum balas
https://aka.ms/ContentUserFeedback.
Akan datang: Sepanjang 2024, kami akan menghentikan secara berperingkat Isu GitHub sebagai kaedah maklum balas untuk kandungan dan menggantikannya dengan sistem maklum balas baharu. Untuk mendapatkan maklumat lanjut lihat:Kirim dan lihat maklum balas untuk