C# Dynamic Event Subscription

You can compile expression trees to use void methods without any arguments as event handlers for events of any type. To accommodate other event handler types, you have to map the event handler’s parameters to the events somehow. using System; using System.Linq; using System.Linq.Expressions; using System.Reflection; class ExampleEventArgs : EventArgs { public int IntArg {get; … Read more

manually trigger touch event

According to W3C var e = document.createEvent(‘TouchEvent’); Then, also change e.initMouseEvent(); to e.initTouchEvent(); As you’ve created a touchstart event. The W3C link says: Some user agents implement an initTouchEvent method as part of the TouchEvent interface. When this method is available, scripts can use it to initialize the properties of a TouchEvent object, including its … Read more

WPF MouseDown event not firing everywhere in a control

<StackPanel Background=”Transparent” … > or <Border Background=”Transparent” … > should do the trick… This makes the grid transparent, however visible for mouse-clicks. Look here form more Information. There are some other circumstances, where you have to use the PreviewXXX– event, this is when a child element “swallows” the event away, but in your case, the … Read more

How to emit and handle custom events?

In general: Create a desired EventType. Create the corresponding Event. Call Node.fireEvent(). Add Handlers and/or Filters for EventTypes of interest. Some explanations: If you want to create an event cascade, start with an “All” or “Any” type, that will be the root of all of the EventTypes: EventType<MyEvent> OPTIONS_ALL = new EventType<>(“OPTIONS_ALL”); This makes possible … Read more