Adding css class through aspx code behind

Question

I am using aspx   If I have HTML as follows    lt div id  classMe  gt  lt  div gt    I am hoping to dynamically add a css class through the code behind file  ie on Page Load   Is it possible

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controlName CssClass  CSS Class Name     working example follows below  txtBank CssClass    csError

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Assuming your div has some CSS classes already      lt div id  classMe  CssClass  first  gt  lt  div gt    The following won t replace existing definitions   ClassMe CssClass      second     And if you are not sure until the very last moment     string classes   ClassMe CssClass  ClassMe CssClass     classes           second      second

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BtnAdd CssClass    BtnCss     BtnCss should be present in your Css File    reference of that Css File name should be added to the aspx if needed

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If you re not using the id for anything other than code-behind reference  since  net mangles the ids   you could use a panel control and reference it in your codebehind    lt asp panel runat  server  id  classMe  gt  lt  asp panel gt   classMe cssClass    someClass

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If you want to add attributes  including the class  you need to set runat  server  on the tag        lt div id  classMe  runat  server  gt  lt  div gt    Then in the code-behind   classMe Attributes Add  class    some-class

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Syntax   controlName CssClass  CSS Class Name     Example   txtBank CssClass    csError

[css] Adding css class through aspx code behind

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