eventhandler

Asp.net:to call event handler of dynamically generated buttons?

i have set enableviewstate property of linkbutton and label to true.also regenrating same buttons on postback in pageload event handler.but m not able to call onclick event handler of linkbutton.can u please tell me what is problem with code? public partial class _Default : System.Web.UI.Page { protected void Page_Load(object sende...

Create a custom click event handler for a WPF usercontrol which contains a button?

Hello guys have you ever found a problem when assigning a click event handler for your custom WPF usercontrol with a nested button control? I do. When you put such user control in a main window, let's say Main.xaml, the MouseLeftButtonDown doesn't work, but the PreviewMouseLeftButtonDown works like a charm. But imagine yourself tellin...

AxWebbrowser Event Handlers not working anymore

The event handlers on my program don't work anymore for some reason. This same exact code I've ran several times before. object loc = "http://www.google.com/"; object null_obj_str = ""; System.Object null_obj = 0; this.axWebBrowser1.Navigate2(ref loc , ref null_obj, ref null_obj, ref null_obj_str, ref null_obj_str); this.axWebBrowser1...

Is it bad to not unregister event handlers?

If I have an application with only a few event handlers registered (and the objects using the events are not disposed until the application is closed), do I really need to worry about unregistering those handlers? The only good reason I could see is that there might be a little extra overhead if events are being fired that you dont nece...

C# How to find if an event is hooked up

I want to be able to find out if an event is hooked up or not. I've looked around, but I've only found solutions that involved modifying the internals of the object that contains the event. I don't want to do this. Here is some test code that I thought would work: // Create a new event handler that takes in the function I want to exe...

ASP.net dynamically created control event handling

Essentially I have a placeholder added to the page dynamically on page load. Then I have a composite control that is added to the placeholder and displayed during runtime for specific page events. The composite control has a button. I have a public eventhandler for the button available in the composite control, but don't actually have ...

Create an Eventhandler via class

I have an application with lots of ListBox controls. I was wondering if it would be possible to add the eventhandler for the onselectedindexchanged in the constructor of the Listbox? All listboxes will use the same method for this. I know I can add them manually but I was hoping for a solution that would change all the ones I currently...

c#/winforms: ItemCheckEventHandler after new checkstate has been applied

hello, i am looking for an event for a CheckedListBox, that fires after the checkedstate of an item has changed. the ItemCheckEventHandler is not good for me, because it fires BEFORE the new state has been applied. thanks! ...

WPF TextBox DoubleClick Event Fires when using Scrollbars rapidly

I have a WPF TextBox, defined like this: <TextBox Text="{Binding Path=/Comments}" Margin="351,193.91,10,36" x:Name="txtComments" IsReadOnly="True" VerticalScrollBarVisibility="Auto" LostFocus="txtComments_LostFocus" MouseDoubleClick="txtComments_MouseDoubleClick" AcceptsReturn="True" /> This works ex...

EventHandler managment in VB.NET

Hi I am right now in an project using VB.NET and needs to translate this C# code into VB.NET oldCommand.CanExecuteChanged -= commandReference.CanExecuteChanged; newCommand.CanExecuteChanged += commandReference.CanExecuteChanged; For me it seems like the an event hooking up on an another event? But I have tried everything to translate...

Why can't I hit the event handler in the code behind doing a modal popup postback

I am basically trying to do what this article says. link text I am able to postback, but my handler is not getting hit. Any ideas? Code Behind protected void Page_Init(object sender, EventArgs e) { WireEvents(); } private void WireEvents() { btnAuthOk.Click += new EventHandler(btnAuthOk_Click); ...

Sharepoint event handling.. which column changed?

I'm writing an event handler to handle the updating of a particular SPItem in a list. The event is asynchronous and I get the SPEvenItemProperties without a problem. What I would like to find out is which of the SPItems columns' actually fired the event. Anyone have any idea how? Thanks in advance. ...

Adding a CheckChanged event handler to CheckBox inside a dynamically added UserControl

I have a UserControl that contains a CheckBox and a TextBox: <asp:CheckBox runat="server" ID="chk1" /> <asp:TextBox runat="server" ID="tb1" /> On Page_Load I'm adding several of them dynamically them to a Panel on the page: //loop through the results from DB foreach (Thing t in Things) { //get the user control MyUserContro...

Suppress context menu in AxWebBrowser object -- timing issue?

I am using an EventHandler to suppress a context menu on an AxWebBrowser. I am using the code below: public class HtmlEditor : System.Windows.Forms.UserControl { ... ... private AxSHDocVw.AxWebBrowser axWebBrowser1; ... ... public HtmlEditor() { InitializeComponent(); axWebBrowser1.DocumentCo...

c# How to add an eventhandler to many menus in a foreach loop?

Hi! I'm working with the compact framework and i'm making an app for a windows mobile standard. I have an array which contain phonenumbers, and i want to add a submenu foreach number i find in that array. These submenus must be clickable, but i can't figure out how to do it. This is my code: // "menuItemRight" is my main ...

ASP.NET Event Handler problem on Postback

Hi I have a bit of a doozie. I have a control with a click event attached. As far as I can see the event should be raised during postback. Things I have checked: The __Eventtarget is correct. The __EventArgs is correct. The control can be found by using page.findControl([string in __Eventtarget]) after init, after load and during prer...

How to create dynamic control event handler

Hi, I have problem with control event handler. I created a control ( button ) and I want to bind click event with a method. But I have "Error binding to target method." exception. code is, class SetControlEvent { public void Sleep() { System.Threading.Thread.Sleep(5000); } internal void Set(object theObject,X...

is it possible to trigger events on class change events?

I want to do something to an HTML element after it has been processed by some other js process over which I have no control. for example, given ... ... and some 3rd party async app does $('div.x').each(function(){ /* do stuff */; this.addClass('processed');}); Is there some strategy for registering an interest in the div when its cl...

Creating eventhandler at runtime in c#

I'm creating an array of BackgroundWorker that shares one event handler like this: BackgroundWorker[] workers = new BackgroundWorker[files.length]; for(int i = o; i<files.length; i++) { workers[i] = new BackgroundWorker(); workers[i].DoWork += new DoWorkEventHandler(worker_DoWork); workers[i].RunWorkerCompleted += new...

Attach an event Handler to mshtml.DispHTMLInputElement

I'm busy writing a BHO(Browser Helper Object) in C# and I need to attach events handlers to all onclick events on Input Elements. I'm NOT using the built in webbrowser provided by visual studio, instead I am launching a new instance of the Internet Explorer installed on the clients PC. The problem comes in when using different versions o...