DelegateCommandBase.OnCanExecuteChanged Method
Raises CanExecuteChanged on the UI thread so every command invoker can requery CanExecute(Object) to check if the CompositeCommand can execute.
Namespace: Microsoft.Practices.Prism.Commands
Assembly: Microsoft.Practices.Prism (in Microsoft.Practices.Prism.dll)
Syntax
protected virtual void OnCanExecuteChanged()
'Declaration
Protected Overridable Sub OnCanExecuteChanged