Defines the method that determines whether the command can execute in its current state.
(in PresentationCore.dll)
Visual Basic (Declaration)
Function CanExecute ( _
parameter As Object _
) As Boolean
Dim instance As ICommand
Dim parameter As Object
Dim returnValue As Boolean
returnValue = instance.CanExecute(parameter)
bool CanExecute(
Object parameter
)
bool CanExecute(
Object^ parameter
)
function CanExecute(
parameter : Object
) : boolean
You cannot use methods in XAML.
Parameters
- parameter
- Type: System..::.Object
Data used by the command. If the command does not require data to be passed, this object can be set to nullNothingnullptra null reference (Nothing in Visual Basic).
Return Value
Type:
System..::.Boolean
true if this command can be executed; otherwise, false.
Typically, a command source calls the CanExecute method when the CanExecuteChanged event is raised.
Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
.NET Framework
Supported in: 3.5, 3.0
Reference
Other Resources