How can I import a JavaScript file embedded in another project using ASP.Net?

I am currently working on two projects - a control library and my main project. In the control library, I am using a user control and some embedded CSS files. To use these CSS files in my main project, I am adding them from the PreRender event of my user control:

  // Register the default CSS resource
  string cssIncludeTemplate = "<link rel='stylesheet' text='text/css' href='{0}' />";
  string cssIncludeLocation = this.Page.ClientScript.GetWebResourceUrl(this.GetType(), "MyCompany.ControlLibrary.WebNotify.WebNotify.css");
  LiteralControl cssInclude = new LiteralControl(String.Format(cssIncludeTemplate, cssIncludeLocation));
  ((System.Web.UI.HtmlControls.HtmlHead)Page.Header).Controls.Add(cssInclude);

Thinking along the same lines, I decided to include my JavaScript files similarly. I added the embedded JavaScript file like this:

  // Register the js
  string jsIncludeTemplate = "<script type='text/javascript' src='{0}'></script>";
  string jsIncludeLocation = this.Page.ClientScript.GetWebResourceUrl(this.GetType(), "MyCompany.ControlLibrary.Scripts.MyScript.js");
  LiteralControl jsInclude = new LiteralControl(String.Format(jsIncludeTemplate, jsIncludeLocation));
  ((System.Web.UI.HtmlControls.HtmlHead)Page.Header).Controls.Add(jsInclude);

While the CSS is working fine, I am encountering "Object Required" exceptions when trying to call my JS functions. Am I approaching this the right way? Is there a better method for including an embedded JS file from another assembly into a different project?

c#asp.netjavascriptinclude

Answer №1

In my opinion, utilizing tools like FireBug for Firefox or Fiddler can be extremely helpful in analyzing server calls and responses. By inspecting these interactions, you can gain a better understanding of what is happening behind the scenes.

Additionally, ensure that your JavaScript file is marked as "build" in the solution settings to avoid any potential issues.

For a more streamlined approach to adding embedded script resources, consider using the ClientScriptManager's RegisterClientScriptResource method:

// Access the ClientScriptManager through the Page class.
ClientScriptManager cs = Page.ClientScript;

// Incorporate the client resource into the page.
cs.RegisterClientScriptResource(rstype, 
     "MyCompany.ControlLibrary.Scripts.MyScript.js");

Answer №2

It appears to be all good; however, I suggest utilizing client tools to confirm if everything is being delivered and utilized properly (such as fiddler, IE toolbar, or Firebug).

My assumption would be that your code is functional, but the browser you are using might be ignoring the javascript due to the script tag lacking a closing tag (e.g. 

<script></script> instead of <script />);
for some reason, certain browsers are particularly finicky about this.

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