?
Solved

javascript method raise event in C# code behind

Posted on 2010-11-30
6
Medium Priority
?
1,062 Views
Last Modified: 2012-05-10
Is there a way a javascript event can raise an event or set some value that the C# code behind can process?

As in __doPostback

or

setting some hidden field?

I just don't remember the mechanics of it.


Please provide working source code for both of the options I listed, or a better way than either one of those is fine.
0
Comment
Question by:Tom Knowlton
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
6 Comments
 
LVL 10

Expert Comment

by:P1ST0LPETE
ID: 34241802
Have a look here, this seems to explain fairly well:
http://www.dev-explorer.com/articles/javascript-trigger-asp-net-events
0
 
LVL 5

Author Comment

by:Tom Knowlton
ID: 34241835
This looks like a good solution, but I would like a few more options.

What about using doPostback or hidden fields?
0
 
LVL 20

Accepted Solution

by:
BuggyCoder earned 668 total points
ID: 34242328
another way is using AJAX and Javascript.
we use XMLHTTPRequest object to go to server behind the scenes and call events.

here is an example
http://www.mikesdotnetting.com/Article/40/ASP.NET-and-Ajax-using-XmlHttpRequest
0
VIDEO: THE CONCERTO CLOUD FOR HEALTHCARE

Modern healthcare requires a modern cloud. View this brief video to understand how the Concerto Cloud for Healthcare can help your organization.

 
LVL 10

Assisted Solution

by:P1ST0LPETE
P1ST0LPETE earned 664 total points
ID: 34244375
0
 
LVL 11

Assisted Solution

by:SAMIR BHOGAYTA
SAMIR BHOGAYTA earned 668 total points
ID: 34247557
Hello,

Try this code.

StringBuilder sb = new StringBuilder();
sb.Append("<script language='JavaScript'>");
sb.AppendFormat("window.close")
sb.Append("</script>");
Page.RegisterStartupScript("Test", sb.ToString());

Also try this code.

private void Page_Load(object sender, System.EventArgs e)
{
  if(!IsPostBack)  
 {
       Button1.Attributes.Add("onclick","return confirm('Do u want to postback ?')");
 }
}
0
 
LVL 5

Author Closing Comment

by:Tom Knowlton
ID: 34252089
thx
0

Featured Post

Independent Software Vendors: We Want Your Opinion

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

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

One of the pain points with developing AJAX, JavaScript, JQuery, and other client-side behaviors is that JavaScript doesn’t allow for cross domain request for pulling content. For example, JavaScript code on www.johnchapman.name could not pull conte…
In .NET 2.0, Microsoft introduced the Web Site.  This was the default way to create a web Project in Visual Studio 2005.  In Visual Studio 2008, the Web Application has been restored as the default web Project in Visual Studio/.NET 3.x The Web Si…
NetCrunch network monitor is a highly extensive platform for network monitoring and alert generation. In this video you'll see a live demo of NetCrunch with most notable features explained in a walk-through manner. You'll also get to know the philos…
In this video, Percona Solution Engineer Rick Golba discuss how (and why) you implement high availability in a database environment. To discuss how Percona Consulting can help with your design and architecture needs for your database and infrastr…
Suggested Courses

765 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