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Dynamically set a link to a CSS file in ASP.NET

, 3 Dec 2004 102.1K 32
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VB.NET line of code to dynamically set a link to a CSS file.

Introduction

I had a tough time finding this online so I thought I would post it on CodeProject.com.

I wanted to be able to dynamically set a link to a CSS file. For example, for users to be able to personalize their site, change the look and feel.

Just add a runat attribute to your traditional link tag. ID attribute has to be present, and tag has to be properly closed (not like HTML).

<head>
<link id="MyStyleSheet" rel="stylesheet" type="text/css" runat="server" />
</head>

Then in your Page_Load, simply add a "href" attribute as below:

Sub Page_Load(Sender As Object, E As EventArgs)
 If Not (IsPostBack)
  MyStyleSheet.Attributes.Add("href","/css/flostyle.css")
 End If
End Sub

Nothing fancy, very simple, but very useful. It also works for meta tags.

License

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About the Author

Florent Boulanger
Web Developer
United States United States
Broad engineering background with business knowledge (graduated from a top French engineering school training entrepreneurs), and excellent relationship skills that Flo utilizes in the I.T. field to streamline/improve company processes.

From web to embedded programming, from a big-5 consulting company to a local hospital, Flo shares his time between development and implementation lead.
Work with ASP.NET, VB.NET, LDAP, SQL Server, Oracle, MySQL...

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Comments and Discussions

 
GeneralAdding a CSS file dynamically in ASP.NET Pin
elizas9-Feb-10 23:02
groupelizas9-Feb-10 23:02 
GeneralA better way to add stylesheet to page header Pin
Eric Falsken12-Nov-07 13:36
memberEric Falsken12-Nov-07 13:36 
After reviewing a few of the different methods here and elsewhere on the web, I gave up and figured it out myself. I rather like this one better than the others because it dosn't require a placeholder on the page and can easily be added to a user control or control assembly:

void Page_Load(object sender, EventArgs e) {
Literal l = new Literal();
l.Text = "<link rel=\"stylesheet\" href=\"mystyle.css\" type=\"text/css\" />";
l.ID = "mystyle";
if(Page.Header.FindControl(l.ID) == null)
Page.Header.Controls.Add(l);
}

GeneralGreat! Pin
Ankhara24-Aug-07 0:09
memberAnkhara24-Aug-07 0:09 
GeneralThe closed '/' could go away Pin
Wayne G. L9-Dec-05 4:20
memberWayne G. L9-Dec-05 4:20 
QuestionCan not get to work Pin
Paul Hutchinson10-Aug-05 21:26
memberPaul Hutchinson10-Aug-05 21:26 
QuestionWhat object type is added as a result of this? Pin
Andy G Brown10-Jan-05 7:44
memberAndy G Brown10-Jan-05 7:44 
AnswerRe: What object type is added as a result of this? Pin
Paul Clapham21-Jul-05 10:06
sussPaul Clapham21-Jul-05 10:06 
AnswerRe: What object type is added as a result of this? Pin
jackrizzo4-Jan-06 5:35
memberjackrizzo4-Jan-06 5:35 
GeneralWrap in user control Pin
Steven Berkovitz7-Dec-04 13:38
memberSteven Berkovitz7-Dec-04 13:38 
QuestionPerformance? Pin
Kevin.Jensen4-Dec-04 7:12
sussKevin.Jensen4-Dec-04 7:12 

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