Run JavaScript from server side in ASP.Net and C#

Question

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How can I run function of JavaScript in ASP.Net server side
or how can I run function in side server in JavaScript function
Please F1! F1! F1! F1!
I am working with C#

Posted 26-Aug-11 10:56am

jiji2663

Updated 26-Aug-11 18:06pm

Tech Code Freak

v2

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Comments

Sergey Alexandrovich Kryukov 26-Aug-11 17:06pm

Do you mean server-side?
--SA

jiji2663 28-Aug-11 8:23am

yes

5 solutions

Solution 3

this post might be too late of a response but this will still be helpful for those future visitors who happen to visit this site looking for solutions.

well i agree with Sergey, however as to what i see and understand, jiji might not really have a clear idea about the client-server model and by which computer languages (native and interpreted/scripts) run on the server side and on the client side. Honestly, the problem posted by jiji was confusing. Now let's make it clear.

Asp.net is a scripting technology and it runs on the server side. It is capable of generating data in text or even in binary format. JavaScript on the other hand is also a scripting technology but which runs on the client side. Commonly Javascript doesn't run on the server side (but in the past there were versions of javascript that run on the server).

The problem i think is 'how to incorporate javascript into asp.net controls'.
Remember, Javascript runs on the client side and it is 'generated as output' by your asp.net script.

Note:
generated as output - when asp.net script generates an output it will be passed to another object that is capable of interpreting it. In the client-server model (in the context of programming), asp.net script generated output is interpreted by the client's browser and it is the browser that understands and capable of running javscript.

Hope this little explanation of mine would help those future visitors seeking for details and explanations or even solutions. =)

Posted 5-Oct-12 17:37pm

Chris Borja

Solution 6

I used this way.

JavaScript

JavaScript

<script type="text/javascript">
     function myFunction() {
         //some code here
         alert('Function called successfully!');
     }
</script>

Called it as: C#

C#

protected void btnServerSide_Click(object sender, EventArgs e)
{
    ScriptManager.RegisterStartupScript(this, GetType(), "myFunction", "myFunction();", true);            
}

Refer: Call JavaScript Function From Code-behind Using C#[^]

Posted 12-Mar-15 20:49pm

Modi Mayank

Updated 15-Jul-15 7:57am

v2

Comments

CHill60 13-Mar-15 4:56am

Please don't resurrect 3 year old questions just to post a link to your own blog. At best it will attract downvotes, at worst it will be reported as Spam/Abuse.

F-ES Sitecore 13-Mar-15 5:53am

The language you are using is incorrect and only leads to further confusion from those learning to code. Your code is not showing people how to call javascript from code-behind, it is showing how to add javascript to the page from code-behind...the execution still takes place on the client. People ask how to call js from code-behind normally because they don't understand the client\server model and think it is possible to utilise the client while their .net code is executing. Articles like yours that claim to show how to call js from code-behind only adds to their confusion and makes them think it is possible.

CHill60 13-Mar-15 7:12am

Virtual 5!

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Sergey Alexandrovich Kryukov · Accepted Answer · 2011-08-26T11:11:00

There is such thing as Server-side JavaScript.

See:
http://en.wikipedia.org/wiki/Server-side_JavaScript[^],
http://en.wikipedia.org/wiki/Comparison_of_server-side_JavaScript_solutions[^].

I don't think you really need it. On ASP.NET on the server side, you have a full power of .NET where you can use any compiled language and powerful debugging.

Also, I don't think Server-side JavaScript is a common solution these days. I think it's quite rare. On the client side JavaScript is the king on the mountain (or actually the only one platform/browser compatible scripting language), but on the server side it hardly can compete with more powerful ASP.NET, Python, Ruby, etc. I wonder why would you need JavaScript?

—SA

jiji2663 · Accepted Answer · 2011-08-28T02:16:00

i solved it

XML

protected void Page_Load(object sender, EventArgs e)
    {
        String script = @"<script language=""Javascript"">
                        function TestJScript()
                        {
                        alert('Just for testing');
                        }
                        </script>";
        Page.RegisterClientScriptBlock("experiment", script);
        Button3.Attributes.Add("onClick", "TestJScript()");

           }

when you click on the Button3 the javascript function is running

and another way:

Button3.Attributes.Add("onclick", "javascript:alert('Testing Macro Functionality');");

and another way:

XML

Response.Write("<script language=javascript>confirm(\"Are you sure to change?\");</script>");

Attoor Krishna · Accepted Answer · 2014-02-05T18:46:00

Solution 4

XML

<script type="text/javascript">
    function showMore() {
        var table = document.getElementById("<%=lblDescriptionDetail.ClientID%>");
        if (table) {
            alert("Success");
        }
    }
</script>

And call it on
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Posted 5-Feb-14 18:46pm

Attoor Krishna