Hi,

I am using one style sheet on master page so all pages use the same style. I am writing one specific page which is used very seldom. I use specific styles on this page. I did not want to add the styles needed in this page to main style sheet, so I decided to write a separate .css. OK, I did it, but then I had a problem how to "insert" link tag under head tag. I found a nice way. On my page's OnInit, I just add the literal to controls of page header.

	protected override void OnInit( EventArgs e )
	{
		Literal link = new Literal();
		link.Text = "<link href=\"ContentEditor.css\" rel=\"stylesheet\" type=\"text/css\" />";
		base.Page.Header.Controls.Add( link );

		base.OnInit( e );
	}

 Jarmo

 Nice.

Here's another way (without literal):

protected override void OnInit( EventArgs e )
{
    this.Header.InnerHtml += "<link type=\"text/css\" rel=\"Stylesheet\" href=\"styleSheet.css\" />";
    base.OnInit(e);
}

Thanks! I tried this.Header.InnerHtml, but it did not work. Why? I tried to get html, append my tag and set it. this.Header.InnerHtml = "something" worked, but this.Header.InnerHtml = this.Header.InnerHtml + "something" failed. InnerHtml's property get generated an exception.

 what exactly is the exception?

I'm using the following code and it works perfectly:

protected override void OnInit( EventArgs e )
{
    this.Header.InnerHtml = this.Header.InnerHtml + "<link type=\"text/css\" rel=\"Stylesheet\" href=\"styleSheet.css\" />";
    base.OnInit(e);
   
}

Hi! I just tried Page.Header.InnerHtml += "something", but it threw an exception "Cannot get inner content of  because the contents are not literal.", which is the same as I got before. So, my initial message has the working solution.

Hi,  

Jarmo:

Hi! I just tried Page.Header += "something"

it's:

this.Header .InnerHtml += "<link type=\"text/css\" rel=\"Stylesheet\" href=\"styleSheet.css\" />";

I tried it and it works very fine!!

I tried Page.Header.InnerHtml += "something" again. I have many tags inside of head (master page). When I removed all entries, then it worked.

Jarmo:

I tried Page.Header.InnerHtml += "something" again. I have many tags inside of head (master page). When I removed all entries, then it worked.

You are right! I tried to add a tag to the head tag and it gave me the exception you mentioned.

I'm not sure, but I think this is a bug.

I tried to render the contents of the header and i was able to get the rendered html:

    StringBuilder sb = new StringBuilder();
    System.IO.StringWriter tw = new System.IO.StringWriter(sb);
    HtmlTextWriter hw = new HtmlTextWriter(tw);
    this.Header.RenderControl(hw);
    string headerRenderedHtml = sb.ToString();
    Response.Write(Server.HtmlEncode(headerRenderedHtml));

no exceptions and the html was rendered.. 

isn't it strange? i googled around looking for something with no luck. anyways, since your solution works fine then there's nothing to worry about. thanks for sharing it by the way.

Today I found that there is a HtmlLink class. In its documentation is an example how to dynamically add a stylesheet See http://msdn2.microsoft.com/en-us/library/system.web.ui.htmlcontrols.htmllink.aspx