Solved

call javascript from .net code

Posted on 2011-02-28
4
321 Views
Last Modified: 2012-05-11
Is it possible to call .net code from javascript? I want my button click event to launch javascript code contained in my <head> tag.

I there is another way I could better handle this I am open to suggestions
0
Comment
Question by:vbnetcoder
  • 3
4 Comments
 
LVL 23

Expert Comment

by:Rajkumar Gs
ID: 34999369
<script>
function Test()
{
alert('Calling this function in Codebehind')
}
</script>

Open in new window


In order to call Test() in page_load event of codebehind file ,I mean Cs /vb file
Button1.Attributes.Add("onclick", " return Test();");

Open in new window


This will call Javascript from serverside when the corresponding event is fired.
Javascript in codebehind

To Use confirm message directly from codebehind
btnSubmit.Attributes.Add("onclick", "if(!confirm('Are you sure?')) return false;") 

Open in new window

0
 
LVL 23

Accepted Solution

by:
Rajkumar Gs earned 500 total points
ID: 34999373
-- javascript function

  function alertMe() {

            alert('Hello');

        }

Open in new window



-- code-behind c# code
if (!ClientScript.IsStartupScriptRegistered("alert"))

{

    Page.ClientScript.RegisterStartupScript

        (this.GetType(), "alert", "alertMe();", true);

}

Open in new window



-- code-behind vb code
If (Not ClientScript.IsStartupScriptRegistered("alert")) Then

    Page.ClientScript.RegisterStartupScript _

    (Me.GetType(), "alert", "alertMe();", True)

End If

Open in new window

0
 

Author Closing Comment

by:vbnetcoder
ID: 35000840
ty
0
 
LVL 23

Expert Comment

by:Rajkumar Gs
ID: 35003856
Glad to help you
Raj
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
Visual Studio .Net 2012 and Crystal Reports 9 46
Why is some text in blue in Visual Studio? 6 23
Help with Syntax 9 26
Vb. Net application freezes 9 30
Today is the age of broadband.  More and more people are going this route determined to experience the web and it’s multitude of services as quickly and painlessly as possible. Coupled with the move to broadband, people are experiencing the web via …
ASP.Net to Oracle Connectivity Recently I had to develop an ASP.NET application connecting to an Oracle database.As I am doing it first time ,I had to solve several problems. This article will help to such developers  to develop an ASP.NET client…
This is used to tweak the memory usage for your computer, it is used for servers more so than workstations but just be careful editing registry settings as it may cause irreversible results. I hold no responsibility for anything you do to the regist…
Internet Business Fax to Email Made Easy - With eFax Corporate (http://www.enterprise.efax.com), you'll receive a dedicated online fax number, which is used the same way as a typical analog fax number. You'll receive secure faxes in your email, fr…

910 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

Need Help in Real-Time?

Connect with top rated Experts

19 Experts available now in Live!

Get 1:1 Help Now