Can Execute(Object) Method
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Retrieves whether the command can execute in its current state.
public: bool CanExecute(Platform::Object ^ parameter);
bool CanExecute(IInspectable const& parameter);
public bool CanExecute(object parameter);
Public Function CanExecute (parameter As Object) As Boolean
Data used by the command. If the command does not require data, this object can be set to null.
true if this command can be executed; otherwise, false.
Typically, a command source calls this method when the CanExecuteChanged event is raised.