Embedding Dynamic CSS in Asp.Net

There are many questions on SO on dynamically generating or applying CSS in ASP.Net or ASP.Net MVC.

Today I accidentally found a simple way to embed dynamic CSS in an aspx file:

in the markup, add runat=”server” to the <style> tag

<style type=”text/css”runat=”server”id=”htmlCss”></style>

This will generate a field of type HtmlGenericControl in the page.

In one of the page life-cycle events (Page_Load, Page_Init, etc), assign the literal CSS definition like this:

var css = @"
htmlCss.InnerHtml = css;

2 thoughts on “Embedding Dynamic CSS in Asp.Net

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