Is it possible under any set of circumstances to be able to accomplish this? My current circumstances are this: public class CustomForm : Form { public class CustomGUIElement { ... public event MouseEventHandler Click; // etc, and so forth. ... } private List<CustomGUIElement> _elements; .....
How do I handle the window close event (user clicking the 'X' button) in a Python Tkinter program? ...
I got this flash application where you can click a link while watching a video. It will open a new tab and pause the video. Now when you come back to the flash application it would be nice if the video would start playing again. Is there a way, an event or so to do this ? ...
I am trying to bind an event to a "method" of a particular instance of a Javascript "class" using JQuery. The requirement is that I in the event handler should be able to use the "this" keyword to refer to the instance I originally bound the event to. In more detail, say I have a "class" as follows: function Car(owner) { this.owner =...
What is the difference between this: this.btnOk.Click += new System.EventHandler(this.btnOK_Click); and this? this.btnOk.Click += this.btnOK_Click; They both work. The former is what Visual Studio defaults to when you use the snippets. But it seems like it only ads extra verbiage, or am I missing something? ...
Suppose I attach an onblur function to an html input box like this: <input id="myInput" onblur="function() { ... }"></input> Is there a way to get the ID of the element which caused the onblur event to fire (the element which was clicked) inside the function? How? For example, suppose I have a span like this: <span id="mySpan">Hello...
I need a way to modify a value in a table after a certain amount of time has passed. My current method is as follow: insert end time for wait period in table when a user loads a page requesting the value to be changed, check to see if current >= end time if it is, change the value and remove the end time field, if it isn't, do nothing...
When writing GUIs, I've frequently come over the following problem: Assume you have a model and a controller. The controller has a widget W that is used to show a property X of the model. Because the model might be changed from outside the controller (there might be other controllers using the same model, undo operations etc), the contr...
I come across this problem when i am writing an event handler in SharePoint. My event handler has a web reference. When i create this web reference, the URL of the web service will be added in the .config file of the assembly. If i have to change the web reference URL i just have to change the link in the config file. Problem comes whe...
I'm trying to handle Winsock_Connect event (Actually I need it in Excel macro) using the following code: Dim Winsock1 As Winsock 'Object type definition Sub Init() Set Winsock1 = CreateObject("MSWinsock.Winsock") 'Object initialization Winsock1.RemoteHost = "MyHost" Winsock1.RemotePort = "22" Winsock1.Connect Do Wh...
Is it possible to pass a function/callback from javascript to a java applet? For example i have an applet with a button that when pressed it will call the passed js callback function onCommand() {alert('Button pressed from applet');} applet.onCommand(onCommand); ...
Which are the events of an ASP .Net server control and how does their order relate to the containing page's events? The concrete problem is that I am looking for an event inside the server control that fires before the *Page_Load* event of the containing page. ...
Every time I start in deep in a C# project, I end up with lots of events that really just need to pass a single item. I stick with the EventHandler/EventArgs practice, but what I like to do is have something like: public delegate void EventHandler<T>(object src, EventArgs<T> args); public class EventArgs<T>: EventArgs { private T i...
In certain cases, I can't seem to get components to receive events. [edit] To clarify, the example code is just for demonstration sake, what I was really asking was if there was a central location that a listener could be added, to which one can reliably dispatch events to and from arbitrary objects. I ended up using parentApplicatio...
So in my documentation it says: "C# public event TreeViewPlusNodeCheckedEventHandler NodeChecked() You can use this event to run cause a method to run whenever the check-box for a node is checked on the tree." So how do I add a method to my code behind file that will run when a node is checked? The method I want to run is: protected...
It's not a matter of life or death but I wonder if this could be possible: I got a couple of events from one type of custom event (FormEvent) now I got a FormListener that listens to all those events and handles them according to the event type. Instead of adding one eventListener at the time I wish to add all events at once. so now it...
I have a Flex application where I'm using a Canvas to contain several other components. On that Canvas there is a Button which is used to invoke a particular flow through the system. Clicking anywhere else on the Canvas should cause cause a details pane to appear showing more information about the record represented by this control. T...
After a bind a method to an event of a Tkinter element is there a way to get the method back? >>> root = Tkinter.Tk() >>> frame = Tkinter.Frame(root, width=100, height=100) >>> frame.bind('<Button-1>', lambda e: pprint('Click')) # function needed >>> frame.pack() >>> bound_event_method = frame.??? ...
In C#, I find myself occasionally wanting to register a method for an event in the middle of a dispatch of that same event. For example, if I have a class that transitions states based on successive dispatches of the same event, I might want the first state's handler to unregister itself and register the second handler. However, I don'...
I have a Windows Form project that I've just started. On the form I have a listbox that I'm loading with Products. When someone double clicks a Product, I want it to raise a ProductChanged event. Other things in my project will subscribe to this event and update things like other parts of the GUI when the Product changes. My question i...