For example, I have a base event publishing method: protected virtual OnSomeEvent(EventArgs e) { var handler = SomeEvent; if (handler != null) { handler(this, e); // handler(this, new EventArgs());// EDIT: Yes it should be // handler(this,...
I am working with a framework that runs its own event dispatcher in a separate thread. The framework may generate some events. class SomeDataSource { public event OnFrameworkEvent; void FrameworkCallback() { // This function runs on framework's thread. if (OnFrameworkEvent != null) OnFrameworkEven...
Hi, I've created an extension method that works just like I wanted. I've noticed that somehow the party and property parameters are 'copied' into the lambda expression. This way I do not need to maintain a custom list of editor/party/property associations. However, I need to reset the ButtonEdit's ButtonClick event. Since this one is a...
How can I write the JavaScript callback code that will be executed on any changes in the URL anchor? For example from http://example.com#a to http://example.com#b ...
Hi, I have a poker framework for which I am trying to develop a "player" for. Basically I am implementing an object that implements a Player interface defined by the framework. I am trying to put a GUI on top of this player, the way that game play works is that the Dealer invokes the act() method on my player and expects a return type o...
I have a pseudo-class in javascript that has a method to add and remove listeners to two buttons. This is the code: function FirstObj(secondObj){ this.loginButton = document.getElementById("login"); this.logoutButton = document.getElementById("logout"); this.secondObj = secondObj } FirstObj.prototype = { manageListeners : funct...
I should mention that i am using Mac OS X, XCode. When a buffer has finished writing to file, it generates an event to tell the gui to read the data off the file. I am not sure what kind of event would i need in this case? Is it possible to do it without using event? Thank you. ...
I'm trying to load external SWFs in a for loop, and I have this problem that is really eating me: In the event handler I need to know the filename of the SWF that was loaded, but I can't obtain this. The code below shows what I'm trying to do. Does anybody have any idea? function loadManySWFs(arrayOfFileNames:Array) { for(var i=0;...
Hi! I have implemented a ruby script that is capable of opening a word document through the Ruby WIN32OLE automation library and does a search and replace on some specified string. This script is running as a "service", or it is running on a windows server with a session that is allowed to be running forever, and I just push the 'X' in...
Let's say I have a collection of thousands of objects, all of which implement the following: public event EventHandler StatusChanged = (s,e) => {}; private void ChangeStatus() { StatusChanged(this, new EventArgs()); } If no handlers are subscribed to that event for each object, does using the no-op event handler provide any performa...
Hi, I'm developing in Visual Studio in C++, all managed code. I have a tight processing loop that, theoretically, can run for up to around 30 seconds. During that time, I want the UI to be reactive to any user activity, such as pressing a "Stop" button, or clicking a scroll bar. I know the technique is to peek at the UI queue (in a non...
I am creating a custom control and i want to add some properties in it. On few of the properties i want to create some events. Say if i have a property public int Date {get; set;} now if its value is changing i want to trigger a change event. SO how can i add event on this ...
Hello. Is there a way to fire an event from a visual within a DataTemplate in the current context (i.e. Page, Window, UserControl etc.). For example I have a DataTemplate that contains a button or a ListBox. I want that when the button is clicked or when ListBox.SelectionChanged is fired in the ListBox, the event handler should be decl...
Lets say we have a form consisting of 20+ controls, for example buttons. We want to create handlers for the On-click event for all of them. The usual way is to go to the designer and double-click each button to have it automatically create the function. Another way is to create them yourself in code, after the InitializeComponent() func...
There is prototype js function: Event.observe(element, eventName, handler) here the element means element's ID. Is it possible to put here element's class? I got this element from third party with class attribute only. ...
I analyze a VB.NET project and there are some objects(child MDI form) that are disposed, but not removed by the GC. The MemoryProfiler analysis find between others the following: "This instance is disposed and still indirectly rooted by an EventHandler. This often indicates that the EventHandler has not been properly remov...
Is WithEvents & Handles usage preferable to RemoveHandler & AddHandler? From Memory point of view (remove an added handler after utilization, etc.) Related question. ...
Hi I have a user control, which is added to another user control. The nested user control is built up of a GridView, an image button and a link button. The nested user control is added to the outer control as a collection object based upon the results bound to the GridView. The problem that I have is that my link button doesn't work....
Hello, I have a couple of checkboxes on my form, and I don't want to write separate event handler for each, because they all will implement the same logic. Instead I want to write just one event handler that will know about what checkbox has been clicked. E.g. in Delphi I can use it this way: function click_handler(sender): begin ...
I need to figure out which character was typed into a text field from within the handler that is called by jQuery's keydown function. key.which gives me only the keycode, but I need to figure out which ASCII character key represents. How do I do this? ...