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Questions tagged [routedcommand]

19 questions
78
votes
4 answers

MVVM Routed and Relay Command

What is the Difference between the RoutedCommand and RelayCommand ? When to use RoutedCommand and when to use RelayCommand in MVVM pattern ?
user72799
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8
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2 answers

Setting Command Target in XAML

I am having a hard time understanding the CommandTarget property for a RoutedCommand. Basically, I have some static commands that have implementations in a user control (not the window). I create a commandbinding in the user control. If I declare…
kevindaub
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4
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2 answers

WPF: Trigger RoutedCommands implemented in UserControl nested inside a ContentControl

How can I trigger routed commands implemented inside a UserControl which is nested inside a ContentControl? What I basically have is an outer view (derived from UserControl) which contains: 1) A button which should trigger the command MyCommand: The…
devar
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2
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0 answers

WPF pass pressed key to command handler

I desire following behavior: Pressing Ctrl + 1 causes selecting first item from list Ctrl + 2 selects first two elements And so on. Currently I'm handling pressed keys by RoutedEvent, Window.CommandBindings and InputGesture. It works fine, but I…
mbednarski
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0 answers

In WPF how can you listen for changes to the text property of a RoutedUICommand without causing a memory leak?

In WPF, the RoutedUICommand is not a dependency object, nor does it implement INotifyPropertyChanged meaning if you were to bind its Text property to something in the UI such as a MenuItem's header, and Mode wasn't OneTime, you'd potentially get a…
Mark A. Donohoe
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2 answers

WPF - Coupling a GlobalResource to a ViewModel

I have a WPF application with a NotifyIcon defined in a ResourceDictionary that is added to Application.Current.Resources on App start. I am using the MVVM-Light framework and I want to bind the Command properties of a ContextMenu.MenuItems on the…
Drammy
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1
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1 answer

Command binding issue in CustomControl: CanExecute() fires, Execute() does not

I'm binding a button command, in a ControlTemplate, to an Execute() method in a CustomControl. I'm using a RoutedCommand, the CanExecute() fires, but the Execute() never does. When the CustomControl is placed in the main window, the code works as…
deathRacer
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1
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1 answer

WPF menus with shortcuts and custom RoutedCommand

Im new to WPF so i might be missing something. I have a simple function in my MainWindow class called StartService. I wanted to add a menu item "Start Service" with a shortcut Ctrl+S to my application. I had to do the following: In my MainWindow…
Tamer
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1 answer

How do the RoutedCommand constructors differ from eachother?

The RoutedCommand in WPF has 3 overloaded constructors. Consider the following: public static RoutedCommand AddTextFieldCommand = new RoutedCommand(); vs public static RoutedCommand AddTextFieldCommand = new RoutedCommand("AddTextField",…
TimothyP
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1 answer

What is the use of tunneling the CommandBinding.previewcanexecute event ??

What is the use of tunneling the CommandBinding.previewcanexecute event ? and bubbling the CommandBinding.canexecute event ?? How is it useful
venky
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0
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3 answers

WPF Routed Command only fires sometimes

I have some RoutedCommands for commands like control-A, copy paste and they all work fine. Then I added 4 more routedcommands to move object up down left and right in the canvas using arrowkeys, they sometimes works and sometime doesn't. At first I…
Ling Xing
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1 answer

RoutedCommands bound by sub elements never fire

I'm trying to get my head around RoutedCommands in WPF. I like how they decrease coupling between different UI elements and the models but I can't seem to make the bindings work for custom controls that are children to the window. I guess this will…
Jonas Rembratt
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0
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1 answer

Catel application-wide commands only in focused control

Is it possible to register an application command in Catel which would fire only when specific control has a focus? For example, in the Catel.Examples.WPF.Commanding example,…
user3188639
0
votes
2 answers

WPF commands globally available

I have a Window element which contains a RibbonMenue. Within this Window there are some UserControls. In one of the UserControl is a DataGrid. I created a ICommand which lets me add and delete rows from the DataGrid. The problem is that I somehow…
Hans Vader
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1 answer

RoutedCommand for multiple Windows

been looking through Google results for quite some hours now and all i was finding were examples of how to use RoutedCommand to catch MouseClicks and Keyboard Shortcuts to do the same actions. I've read some sources about RoutedCommand like MSDN and…
Fruckley
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