Injecting javascript from ASP.NET webcontrol

Question

I'm making an ASP.NET webforms application and I have a problem with injecting a script into the page from a web control. The script is located in the same folder as control:

Screenshot1

So I'm trying like:

[ToolboxData("<{0}:MyWebControl runat=server></{0}:MyWebControl>")]
[System.Drawing.ToolboxBitmap(typeof(MyWebControl))]
public class MyWebControl : Image
{

    //...

    protected override void OnPreRender(EventArgs e)
    {
        base.OnPreRender(e);


        string scriptStr = "<script src=\"my_script.js\" type=\"text/javascript\">";
        ClientScriptManager csm = Page.ClientScript;
        csm.RegisterClientScriptBlock(this.Page.GetType(), "MyScriptTag", scriptStr);

        //...
    }

}

When I check if the script got injected successfully, Chrome gives me this:

Screenshot2

I guess the problem is connected with script src=\"my_script.js\", but I tried changing the path for long with no success.

Looking forward for some help :)

Jonathon Chase · Accepted Answer · 2017-12-28 23:22:29Z

0

You need the path to the javascript file to be relative to the page that the user control is being rendered within. I'm assuming that the user control is being loaded by your index.aspx in your web project. Add a Scripts folder to the web project and move the javascript file there. Then, change the src to

src=\"/Scripts/my_script.js\"

answered Dec 28, 2017 at 23:22

Jonathon Chase

9,70426 silver badges42 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

YogoWafel Over a year ago

Great, that worked! But it's not precisely what I meant. Is it possible to somehow encapsulate the script file in the location I originally placed it? I would like to have it in the first project

Jonathon Chase Over a year ago

You would need to set the script as an embedded resource and follow additional steps to implement it properly. msdn.microsoft.com/en-us/library/bb398930.aspx - this is an older doc, but should be relevant to what you're trying to do.

Collectives™ on Stack Overflow

Injecting javascript from ASP.NET webcontrol

1 Answer 1

2 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

2 Comments

Your Answer

Sign up or log in

Post as a guest

Related