events

Lambda expressions as CLR (.NET) delegates / event handlers in Visual C++ 2010

Is it possible to use the new lambda expressions in Visual C++ 2010 as CLR event handlers? I've tried the following code: SomeEvent += gcnew EventHandler( [] (Object^ sender, EventArgs^ e) { // code here } ); It results in the following error message: error C3364: 'System::EventHandler' : invalid argument for deleg...

EventTrigger RoutedEvent in wpf xaml

I have a problem in wpf xaml and i'm pretty new on this so it may be something basic i want to rotate a ellipse 360 degree <Ellipse Name="test" Fill="Black" StrokeThickness="5" Margin="0,0,0,0" Height="66"> <Ellipse.Triggers> <EventTrigger RoutedEvent="Ellipse.Loaded" SourceName="test"> <BeginStorybo...

can Distribute setuptool be used to convert python 2 packages to python 3?

As per the below link porting python packages from 2 to 3 would be easy when distribute is used. Is tat true? anyone tried before? karnol ...

Windows Form user control hosted in WPF - How to capture the leave event?

Hi, In my WPF application I'm hosting a custom Windows Form User Control together with other wpf controls. My custom user control is hosted in wpf using a WindowsFormsHost control. This custom user control contains (the parent so to speak) other custom win form controls (children controls). The children controls can be single or composi...

order of onclick events

I want to add a jquery click event to href's that already have an onclick event. In the example below the hard coded onclick event will get triggered first. How can I reverse that? <a class="whatever clickyGoal1" href="#" onclick="alert('trial game');">play trial</a> <br /> <a class="whatever clickyGoal2" href="#" onclick="alert('real g...

WinForm's CheckBox CheckedChanged vs. CheckStateChanged

WinForm CheckBox control implements both CheckedChanged and CheckStateChanged events. As far as I can tell both fire when the checked status of the checkbox is changed. CheckedChanged precedes CheckStateChanged, but other than that I see no difference. Am I missing something? Should one be preferred over another? ...

Is there a better way to write this repetitive event-declaration code in C# when implementing an interface explicitly?

I have a lot of code like the following, where I explicitly implement some events required by an interface. public class IMicrowaveNotifier { event EventHandler<EventArgs> DoorClosed; event EventHandler<EventArgs> LightbulbOn; // ... } public class Microwave : IMicrowaveNotifier { private EventHandler<EventArgs> _doorClosed; ...

how to disable JList selection change event and invoke it only on double click ?

As the title says... I'd like items in a JList to be "selected" only when they are double clicked. what would be the best way to achieve this kind of behavior ? ...

JavaScript/jQuery - onhashchange event workaround

Until all browsers support the onhashchange event what is the best workaround for this? Is there something for this in jQuery? or as a plug-in? ...

Emulate domready event with a custom event (mootools)

I need to fire a one time only custom event that functions like the domready event, in that if new events are added after the event has occurred they are fired immediately. This is for some code that cannot execute until certain data and resources are initialized, so I want to do something like this: // I am including a script (loadRes...

Any way to add an observer to the head of the queue using Element#observe?

This might not be possible but before I rewrite part of my application I wanted to ask... I have a JavaScript app which creates a submit <input> and observes that input's click event using Prototype's Element#observe function. For a few particular pages on one particular site which uses this app, I need to apply some additional busines...

How is xmlhttp.responseText assigned before xmlhttp.send()

Newbie ajax question from this example: How is xmlhttp.responseText assigned before xmlhttp.open() and xmlhttp.send() ? (If we need the data from demo_post.asp) I understand it is in the onreadystatechange but if the javascript is read from top down I do not understand. Thanks, and go easy on me! ...

Continuously reading from a stream?

I have a Stream object that occasionally gets some data on it, but at unpredictable intervals. Messages that appear on the Stream are well-defined and declare the size of their payload in advance (the size is a 16-bit integer contained in the first two bytes of each message). I'd like to have a StreamWatcher class which detects when the...

jQuery/Javascript: Click event on a checkbox and the 'checked' attribute.

The code: $('input.media-checkbox').live('click', function(e){ e.preventDefault(); var that = $(this); if (that.attr('checked') == 'checked'){ var m = that.attr('media'); var mid = 'verify_' + m; that.parents('div.state-container').find('ul.' + mid).remove(); that.attr('checked', false); ...

overriding previously-bound click events

When I use this code with an element whose id is "foobar": $("#foobar").click(function () { alert("first"); }); $("#foobar").click(function () { alert("second"); }); I get two alerts: "first" and "second" second. How do I specify a click event that also clears out any previous click events attached to the element? I want the last $("...

Question about custom events

I'm making custom events for C# and sometimes it isn't working. This is how I'm making the event happen: private bool isDoorOpen; public bool IsDoorOpen { get { return isDoorOpen;} private set { isDoorOpen = value; DoorsChangeState(this, null);} } And these are the event declarations: //events ...

Ordering the calling of asynchronous methods in c#

Hi, Say I have 4 classes ControllerClass MethodClass1 MethodClass2 MethodClass3 and each MethodClass has an asynchronous method DoStuff() and each has a CompletedEvent. The ControllerClass is responsible for invoking the 3 asynchronous methods on the 3 MethodClasses in a particular order. So ControllerClass invokes MethodClass1....

Guaranteeing the onmouseout event to fire

Hello everybody, I'm currently developing a web application and have run into a little problem. I'm using ExtJS, but I believe this to be a general JS question. When the cursor enters an HTML element, the onmouseover event is fired, when the cursor leaves that element, onmouseout is triggered. So far, so good. Unfortunately, it seems o...

jQuery: Dialog Close Event: Execute more than one command without having to call a function

I will be calling a jQuery dialog from various parts of a page. Each call is initiated by an onClick event of the calling object where I firstly call a function to create the dialog, write the close event binding to the dialog and then call the dialog. For the close event, I wish to have multiple commands to be performed, but different f...

How to detect RegOpenKey or RegSetInfoKey Event in C#

Hi, im trying to detect the RegOpenKey or RegSetInfoKey event like Process Monitor from Mark Russinovich (Sysinternals) does. Does anyone know how to write a C# Event which gets fired when a Program is doing a RegOpenKey or RegSetInfoKey on a RegistryKey (NOT changing!)? Thanks in advance! ...