473,796 Members | 2,911 Online
Bytes | Software Development & Data Engineering Community
+ Post

Home Posts Topics Members FAQ

How add an event to a new control?

28 New Member
I created a new dropdownlist with the event selectedIndexCh anged, but he never dispared!! what i am doing wrong?

Thanks

for (int i = 0; i < 2; i++)
{
DropDownList dl = new DropDownList();

dl.ID = dl + i.ToString();
dl.DataTextFiel d = "name";
dl.Items.Add("1 ");
dl.Items.Add("2 ");
dl.Items.Add("3 ");
dl.Items.Add("4 ");
dl.DataBind();
dl.AutoPostBack = true;
dl.SelectedInde xChanged += new EventHandler(dl _SelectedIndexC hanged);

TableRow linha = new TableRow();
TableRow cabecalho = new TableRow();

TableCell cell = new TableCell();
cell.Controls.A dd(dl);
linha.Cells.Add (cell);
TableReversao.R ows.Add(linha);
}
Apr 1 '08 #1
3 1029
guilherme21922
28 New Member
and i have created the function on the c# too..

protected void dl_SelectedInde xChanged(object sender, EventArgs e)
{

}

no compilation error
Apr 1 '08 #2
Plater
7,872 Recognized Expert Expert
And now what did you want it to do?
(I would guess there is trouble with autopostback and dynamic controls)
Apr 1 '08 #3
guilherme21922
28 New Member
And now what did you want it to do?
(I would guess there is trouble with autopostback and dynamic controls)
the problem is: when i change the selected item the event is not dispared
Apr 1 '08 #4

Sign in to post your reply or Sign up for a free account.

Similar topics

18
2889
by: Christopher W. Douglas | last post by:
I am writing a VB.NET application in Visual Studio 2003. I have written a method that handles several events, such as closing a form and changing the visible status of a form. I have some code that applies to all these events, but I need to have specific code execute when the form closes. The properties for this method are sender (the originator) and e (event arguments). I know how to get typeof (sender) to determine what form or...
4
3909
by: Anatoly | last post by:
Put any control on web page. create Init event for ths control. Write Response.Write("here") inside this event. Compile\build\run. I never saw "here" string appear on web page. Why???
6
3383
by: Steve Booth | last post by:
I have a web form with a button and a placeholder, the button adds a user control to the placeholder (and removes any existing controls). The user control contains a single button. I have done all the usual stuff of recreating the usercontrol in the Page Init event. The 'failure' sequence is as follows: - select web form button to display the user control - select user control button, event fires - select web form button to display...
12
4144
by: Jack Russell | last post by:
My unstanding of all VB up to and including vb6 is that an event could not "interrupt" itself. For instance if you had a timer event containing a msgbox then you would only get one message. However in vb.net you get continual messages (even setting the system modal property). Firstly, are these two assumptions right and if so what is the approved
0
2958
by: Demetri | last post by:
I have created a web control that can be rendered as either a linkbutton or a button. It is a ConfirmButton control that allows a developer to force a user to confirm if they intended to click it such as when they do a delete. Everything is great. By and large it will be used in my repeater controls using the command event when the user clicks on it and so that event is working great. My issue is the Click event. When the control is...
9
2472
by: jeff | last post by:
New VB user...developer... Situation...simplified... - I want to wrap a pre and post event around a system generated where the pre-event will always execute before the system event and the post event will always execuate after the system is completed... - I want to wrap this functionality in a framework, so I could possibly have 3 or 4 levels of inherited objects that need to have these pre / post events executed before and after the...
1
2092
by: Jordan S. | last post by:
I'm just wondering if this would work. Please note that I'm not asking *how* to raise events. I'm clear on that. What I'm not clear on is the sequence in which events are raised by custom controls relative to the hosting Page, and therefore if the following specific arrangement would even work. What I'm looking to do is dynamically insert multiple custom composite Web server controls onto a blank Page. This is no problem, I know how to do...
4
237
by: tshad | last post by:
I am just getting started with events and had a couple of questions on why they do what they do. If you have a textbox and you want to handle an event you can just do: this.TextBox2.TextChanged += new EventHandler(TextBox2_TextChanged); and then have the function. void TextBox2_TextChanged(object sender, EventArgs e)
6
1886
by: tshad | last post by:
I was looking at a page that showed how to set up a custom event and it seems to work ok. But I am not sure how I would use it. How would I subscribe to it. There is actual action (such as pressing a button or changing text in a textbox). It gets set up and on the user control on my web page I can see the event from intellisense. So it seems to be set up, but I am trying to get an easy example of how I would now use this event. ...
1
7994
by: chandhrakv | last post by:
Hi experts, Can any one please respond with the resolution. Machine: WIN2K3, ASP.NET application, .NET 2.0 with June 2007 hotfix installed recently. Facing daily 1000 errors with the same type hopefully. Please assist. ----- Event code: 3005 Event message: An unhandled exception has occurred. Event time: 11/18/2009 10:48:23 AM Event time (UTC): 11/18/2009 5:18:23 AM Event ID: 6418c83513d4492bb14bc36994b95996
0
9685
marktang
by: marktang | last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look ! Part I. Meaning of...
0
9535
by: Hystou | last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it. First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
0
10244
jinu1996
by: jinu1996 | last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth. The Art of Business Website Design Your website is...
1
10201
by: Hystou | last post by:
Overview: Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
0
9061
agi2029
by: agi2029 | last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own.... Now, this would greatly impact the work of software developers. The idea...
1
7558
isladogs
by: isladogs | last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM). In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules. He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms. Adolph will...
0
6802
by: conductexam | last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one. At the time of converting from word file to html my equations which are in the word document file was convert into image. Globals.ThisAddIn.Application.ActiveDocument.Select();...
0
5454
by: TSSRALBI | last post by:
Hello I'm a network technician in training and I need your help. I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs. The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols. I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
3
2931
bsmnconsultancy
by: bsmnconsultancy | last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.