Possible Duplicates: Unsubscribe anonymous method in C# How do I Unregister anonymous event handler I recently discovered that I can use lambdas to create simple event handlers. I could for example subscribe to a click event like this: button.Click += (s, e) => MessageBox.Show("Woho"); But how would you unsubscribe it? ...
I'm working on an EventRegistry that lets register some event handlers. Every time an event is raised it will check to see if there's any subscriber for that event and invoke them. interface IEventRegistry { void Subscribe<TEventArgs>(Type eventType,EventHandler<TEventArgs> subscriber) where TEventArgs:EventArgs void Publish<TEventArgs>...
Hi All, I have a GridView which is databound to an XML Datasource. For one of the columns I'm using a TemplateField and within it's ItemTemplate I have a CheckBox. I need to programatically add an EventHandler to the CheckBox. I was wondering if anyone can tell me which EventHandler from the GridView to use to add a CheckedChanged Event...
I have written a subclass of UIControl that tracks a number of gestures that are of interest to me. In the documentation for the UIControlEvents enumeration, it says that there is a range of event numbers called UIControlEventApplicationReserved that is "available for application use." Does this mean that I am free to use this range of...
Hi, I have a view with several subviews which in turn have several subviews. If I fire an event, say touches ended, in one of the bottom level views, how can I see what that event generating view was in the root view or second level view? Additionally any idea how to catch that event and then release the mid level view which would in t...
Hi, Parent is a UIImageView, child is a UIImageView. Both have enable user interaction set to yes. Problem is that child will cover parent view, so can't fire touches from the parent, need to do them from the child. But how can the child either set a new image file in the parent based on it's touch events which can be acquired by user ...
I have some elements with events bound. Before I remove those elements, do I need to unbind them first? If I don't will they cause problems? Thanks. Edit: I realized I phrased the question incorrectly, so now I'm making an edit, excuse me for that, I but I think it makes more sense to do this than make a new question. I would have to ...
We have a Web system that uses a combination of OnBlur and OnMouseDown events. Unfortunately, for a strange reason the OnMouseDown event handler is being triggered before calling the OnBlur event handler. This is not what we want. Instead, we want to always call the OnBlur event handler prior to calling the onMouseDown event handler. I...
Hi, I need to rewrite the domain names on web pages served by a DLL that I have no way to change. I thought if there were events like OnFlush before Response.Flush occurs on the page I could do it all before the page is displayed. Is there a way to do this in ASP? Thanks for your help. P.S.: Something like Script_OnFlush in this APACH...
I have a UserControl with something that does some background work. When thing has a completed event, which the user control is subscribed to. Since the event is raised in a separate thread and the event handler does some updating of the user control I start the event handler with this: private void ProcessProcessCompleted(object sender...
Hi, In VB.NET there is a keyword 'shadows'. Let's say I have a base class called 'Jedi' and a derived class called 'Yoda' which inherits from 'Jedi'. If I declare a method in 'Jedi' called 'ForcePush' and shadow that out in 'Yoda' then when calling the method on an instance of the 'Yoda' class, it will ignore the base class implementat...
<form action="1.html"> <input type="radio" id="check1" name="check" /> <input type="radio" id="check2" name="check" /> </form> What I want to implement is : when "check2" is checked,change "action" value to "2.html" when "check1" is checked,change "action" value back to "1.html" ...
$('#check1,#check2').click(function() { }); Live above,how to tell if "check1" or "check2" is clicked ? ...
Url is here: http://jqueryui.com/demos/dialog/#modal Suppose this dialog contains two buttons:"OK" and "NO", when "Enter" is pressed,I want the function binded with "OK" button to be called. How to do that? The dialog is something like this: <table cellpadding="0" border="0" width="100%"> <tr align="center"> <td align="...
Maybe this is a dumb question, but do event listeners use CPU cycles like a timer, or are they inactive until the event is fired? Is it language specific, or do all languages handle this basically the same? I want to write a tiny service that only does anything when a network disconnect event is fired, and I don't want the service to u...
I have a use case where i have to unsubscribe for an event. But prior to unsubscribing i want to make sure whether this guy has actully hooked on to this event or not. Please let me know how i can achieve this ? ...
<select id="target"> <option value="1">item1</option> <option value="2">item2</option> <option value="3">item3</option> </select> Say,I want to do some processing according to selected value. ...
<input type="text" id="name" /> <span id="display"></span> So that when user enter something inside "#name",will show it in "#display" ...
Hi, I'm trying to handle an event inside an ItemsControl ControlTemplate. I have assigned the MouseUp and MouseDown events of a button (btnRight below). The problem is that when I click on the button, the event never reaches my code-behind. How do events in ControlTemplates work and what do I need to do to hook this up? I've tried assig...
I'm using this method in BlogEngine.net to send a number of emails to users on the site: Utils.SendMailMessageAsync(mail); There is already an event that is bubbled up in case of a message not being able to be sent but I don't know how to use it: Utils.EmailFailed Ideally I just want to count the number of messages that aren't sen...