CODEWITHSUNDEEP
c#javascriptasp.net
KingOfHypocrites
KingOfHypocrites

Reputation: 9537

Treat external javascript file as part of Aspx Page

I know you can't use asp net server tags in an external javascript file. This is a bit of pain, because it forces you to declare your variables that need ClientID in the aspx page and then you refer to them in the external javascript file. Not very clean. Currently I use script manager's composite script to register my scripts... It would be nice if I could have the script injected and the server tags processed as if it was part of the page. Is this possible?

I know there is RegisterClientScript but this doesn't seem to honor the script tags either. I'm wondering if there is a solution someone has come up with to just pull the contents of the javascript file and shove them into the aspx page before it's processed so that the server tags can be processed. I've looked all over the web and don't see any good solution to this beyond using the server tags in the aspx page or generating the ids of controls, etc. server side and generating script.

Upvotes: 0

Views: 1018

Answers (1)

Nathan
Nathan

Reputation: 1090

I know you can't use asp net server tags in an external javascript file

You can create an ASPX page to generate dynamic javascript

<%@ Page Language="C#" AutoEventWireup="false"
CodeFile="script.aspx.cs" Inherits="scripts_script"
EnableViewState="false" StyleSheetTheme="" %>
function test() {
    testinfo.innerHTML = "<%= MyVariable %>";
}

Make sure to set StyleSheetTheme="" otherwise the runtime will insert a <head> which you don't want

And in the code behind set the ContentType to application/x-javascript

using System;

public partial class scripts_script
{
    protected override void OnLoad(EventArgs e)
    {
        base.OnLoad(e);
        this.Response.ContentType = "application/x-javascript";
    }
}

Now you can use this ASPX page as if it were a .js file.

Upvotes: 2

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