?
Solved

call javascript from listbox event

Posted on 2004-10-14
7
Medium Priority
?
1,196 Views
Last Modified: 2008-02-01
Hi everyone!

I have this:

<asp:listbox id="ListBox0" runat="server" ></asp:listbox>

I want the onSelectedIndexChanged to call a javascript function called "doChange(text)"

(I can solve the problem with an AutoPostBack to the server, but then the whole page reloads, and this takes a while since i have big pictures and two <iframe> on it, and I don't want the page to reload)

How do I do this?
0
Comment
Question by:Darth_helge
5 Comments
 
LVL 15

Accepted Solution

by:
praneetha earned 1000 total points
ID: 12310157

<asp:listbox id="ListBox0" runat="server"  onclick="dochange(text)";></asp:listbox>

0
 
LVL 18

Assisted Solution

by:tusharashah
tusharashah earned 1000 total points
ID: 12310172
Add following line in your Page_Load event:

ListBox0.Attributes.Add("OnChange", "doChange('text'); return false;");


-tushar
0
 
LVL 6

Expert Comment

by:ryerras
ID: 12311093
Tushar's answer is correct. Asp.NET drop downlist or Listbox renders as SELECT html element when the web page is displayed. So, whenever you want to handle any client side event, look for the client side event for the corresponding html element events. You can either add the event in the aspx page itself or in code behind. For your case,

you can say,
<asp:listbox id="ListBox0" runat="server"  onChange="dochange(text)";></asp:listbox>
or
ListBox0.Attributes.Add("OnChange", "doChange('text'); return false;");

 when you are adding onChange event in the aspx page, you wouldnt find that in the intellisense, since its only client side event, server controls only show the events which can be handled in the server side only. So, since onChange is not handled on the server, vs.net wouldnt bother to show it in the intellisense, since at that moment, the control is only a server control, not a html control

Thought I would add something extra to what the previous guys said
0
 
LVL 6

Expert Comment

by:ryerras
ID: 12655215
I think tushar's answer is correct. User is talking about a client side alternative for SelectedIndexChanged, the client side event for this is "onChange" not "onClick"
0
 
LVL 5

Author Comment

by:Darth_helge
ID: 12704438
hello everyone.

im so sorry for not accepting any answers. it's just all the emails sent to me from this website was stopped by our new spam filter at work. i will see to it that your emails will slip through the filter hereafter
0

Featured Post

Free Tool: SSL Checker

Scans your site and returns information about your SSL implementation and certificate. Helpful for debugging and validating your SSL configuration.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

IntroductionWhile developing web applications, a single page might contain many regions and each region might contain many number of controls with the capability to perform  postback. Many times you might need to perform some action on an ASP.NET po…
Introduction This article shows how to use the open source plupload control to upload multiple images. The images are resized on the client side before uploading and the upload is done in chunks. Background I had to provide a way for user…
In a question here at Experts Exchange (https://www.experts-exchange.com/questions/29062564/Adobe-acrobat-reader-DC.html), a member asked how to create a signature in Adobe Acrobat Reader DC (the free Reader product, not the paid, full Acrobat produ…
With just a little bit of  SQL and VBA, many doors open to cool things like synchronize a list box to display data relevant to other information on a form.  If you have never written code or looked at an SQL statement before, no problem! ...  give i…
Suggested Courses

862 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question