ICommand.CanExecute Method (Object)
Defines the method that determines whether the command can execute in its current state.
Assembly: System (in System.dll)
Data used by the command. If the command does not require data to be passed, this object can be set to null.
Return ValueType: System.Boolean
true if this command can be executed; otherwise, false.
Available since 4.5
Available since 3.0
Portable Class Library
Supported in: portable .NET platforms
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Available since 8.1