How to call a javascript function from .cs page

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Hi,

I have a javascriipt function in my .aspx page. How can I call this function from .cs page, so as that the function accepts a parameter that I send it from .cs page on page load? Please help me in this regard.

Thanks in advance.

Posted 24-Oct-10 23:50pm

bedathur_ganesh

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Sunasara Imdadhusen 25-Oct-10 5:54am

Which event you want to call like button click,change,checked..?

bedathur_ganesh 25-Oct-10 6:06am

Let me make it clear..
I have a javascript function as below:

function Initialisation(fileName) {
var elem = document.getElementById("aaa");
elem.filename = '"+fileName+"';
}
I want to pass the "fileName" from .cs page to the javascript function on page load and I want ti assign the fileName value to elem.filename

Can you please guide me?

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Sunasara Imdadhusen · Answer 1 · 2010-10-24T23:58:00

Hi,

You can call javascript function from server side using following function.

Updated:
your javascript function:

C#

function Initialisation(fileName) { var elem = document.getElementById("aaa"); elem.filename = '"+fileName+"'; }

your aspx.cs page:

C#

string fileName = "test.aspx";
ScriptManager.RegisterStartupScript(this.Page, this.GetType(), "ScriptRegistration", "Initialisation('"+ fileName +"');", true);

Please do let me know, if you have any doubt.

Please provide "Vote" if this would be helpful, and make "Accept Answer" if this would be correct answer.:rose:

Thanks,
Imdadhusen

**Dalek Dave** · Answer 2 · 2010-10-24T23:57:00

Solution 1

You can't call it from the .cs page, but you can pass the reference to the c# code which can then execute and pass back to the JS script.

Posted 24-Oct-10 23:57pm

Dalek Dave

Comments

bedathur_ganesh 25-Oct-10 6:06am

Let me make it clear..
I have a javascript function as below:

function Initialisation(fileName) {
var elem = document.getElementById("aaa");
elem.filename = '"+fileName+"';
}
I want to pass the "fileName" from .cs page to the javascript function on page load and I want ti assign the fileName value to elem.filename

Can you please guide me?

NothingToLoose · Answer 3 · 2012-07-17T22:47:00

Call below code snipet from any event like button click or page load or any other event

XML

string filename="assign value";

 System.Text.StringBuilder sb = new System.Text.StringBuilder();
        sb.Append(@"<script language='javascript'>");
        sb.Append(@"Initialisation('" + filename + "');");
        sb.Append(@"</script>");
        System.Web.UI.ScriptManager.RegisterStartupScript(this, this.GetType(), "JCall1", sb.ToString(), false);

Unareshraju · Answer 4 · 2012-07-16T02:24:00

hi try like this
string fileName = "your filename here";

Page.ClientScript.RegisterStartupScript((Type.GetType(Initialisation(fileName)), "Initialisation(fileName)", "if u wantshow the value use ShowValue()", true);
i hope it will useful to u.

http://www.daniweb.com/web-development/aspnet/threads/368821/calling-javascript-function-in-asp.net-app-[^]

thanks and regards
nareshrajuu

How to call a javascript function from .cs page

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