System.windows.input.icommand

Search related threads. Remove From My Forums. Answered by:. Archived Forums. Sign in to vote. None of those actions seem to help, but situation seems to stay as it is. Thursday, August 1, AM. Monday, August 5, AM. Hi Heikki-Pekka, I will try to involve some senior engineer into this case. Saturday, August 3, AM. The Execute and CanExecute methods on a RoutedCommand do not contain the application logic for the command as is the case with a typical ICommand , but rather, these methods raise events that traverse the element tree looking for an object with a CommandBinding.

The event handlers attached to the CommandBinding contain the command logic. The Execute method raises the PreviewExecuted and Executed events. Initializes a new instance of the RoutedCommand class. Initializes a new instance of the RoutedCommand class with the specified name and owner type. Initializes a new instance of the RoutedCommand class with the specified name, owner type, and collection of gestures.

Gets the collection of InputGesture objects that are associated with this command. Determines whether this RoutedCommand can execute in its current state. Executes the RoutedCommand on the current command target.

Gets the Type of the current instance. Creates a shallow copy of the current Object. Occurs when changes to the command source are detected by the command manager. These changes often affect whether the command should execute on the current command target.

Initially, the button has to be disabled. The button will only be enabled when a user starts filling the form. Otherwise, it is useless for a button to work if it has nothing to process. Don't worry we will see this in action. Execute method The execution of an Execute method depends on what CanExecute returns. Like we said above, if the user starts filling up a form then Register Button will be enabled and then after clicking on a button we will process the information that the user has entered.

But the Register Button remains disabled until the user starts typing. This means our Execute method is not going to be triggered unless and until we have some information to process. Now our relay class is going to need 2 delegates. One is for Execute which will be Action delegate because this method is not gonna return a value.