ToolCommand.CanExecute Method

Locates a command binding for the command and asks if it is enabled.

Namespace: Microsoft.Windows.Design.Interaction
Assembly: Microsoft.Windows.Design.Interaction (in Microsoft.Windows.Design.Interaction.dll)

Syntax

'Declaration
Public Function CanExecute ( _
    data As GestureData _
) As Boolean

public bool CanExecute(
    GestureData data
)

public:
bool CanExecute(
    GestureData^ data
)

member CanExecute : 
        data:GestureData -> bool

public function CanExecute(
    data : GestureData
) : boolean

data
Type: Microsoft.Windows.Design.Interaction.GestureData
The gesture data that is to be passed to the command. Gesture data is required as it provides a context object from which the CanExecute method can locate the active tool.

Type: System.Boolean
true if the command is enabled; false if it is disabled or there is no binding for it.

Exception	Condition
ArgumentNullException	data is nulla null reference (Nothing in Visual Basic).
ArgumentException	data.Context is nulla null reference (Nothing in Visual Basic).

Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.