C# - Accessing External Stylesheet In Code Behind?

Jul 27, 2010

i have a unordered list(HTML) whose style i am changing conditionally in the code behind

<ul class="steps">
<li class="" id="step1" runat="server">Step 1</li>
<li class="step2" id="step2" runat="server">Step 2</li>
<li class="step3" id="step3" runat="server">Step 3</li>
<li class="step4" id="step4" runat="server">Step 4</li>
</ul>

in the code behind iam doing something

step1.Attributes["class"] = "step1";
step2.Attributes["class"] = "step2New";

something like this

If iam using internal styles then its working fine but when iam taking the same style sheet to external file then it is not working

Is it because i am assigning attributes using id i don't know

the css file is some what like this

[Code]....

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