What is the process of dynamically loading CSS into an HTML document?

In my C# program, I am utilizing a web browser control and setting its HTML property programmatically by loading it from an HTML string variable. While this setup works almost perfectly, I have noticed that it loses the reference to the CSS file. I believe the simplest solution would be to make the path of the CSS file absolute, but ideally, I want it to remain relative to the C# executable. Can someone please advise on how to ensure the HTML maintains reference to the CSS file in this context?

Thank you in advance.

Edit: Apologies for the confusion. My C# application is actually a desktop one, even though it utilizes a web browser control. Edit: Let me provide some code. Initially, I load the document from an HTML file and store it in a variable, then for subsequent times, I reload the document from the variable.

  //first load
  web_browser_control.Url = new Uri( dir + @"\HTML\default1.html" );

  void wB2_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
  {   html_string = web_browser_control.DocumentText; }

  //second load or later
  web_browser_control.DocumentText = html_string;

Answer №1

To troubleshoot the issue, it is important to analyze the path that the program believes it is resolving. It would be helpful if you could provide some code for further investigation. There is a possibility that the program is not resolving to the expected location because it is running from the bin directory (make sure your path is correct relative to the executable and HTML files).

For instance, consider whether the HTML file it is searching for is still in the anticipated location or if it has been moved to a different folder causing the relative paths to become outdated.

Additional code snippets and details about the control being used would greatly assist in diagnosing the problem.

Answer №2

It appears that you have the option to modify a property in the CSS file to be "content" and set the property "copy to output directory" to "always", ensuring that the web app DLL will be located in the same directory as the CSS file. Alternatively, you can utilize the MapPath method.

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