Add CSS class to a div in code behind

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I have a div and I am trying to add a CSS class to it in code but I receive the following error when I try

Property or indexer 'System.Web.UI.HtmlControls.HtmlControl.Style' cannot be assigned to -- it is read only

I am using the following code:

protected void BTNEvent_Click(object sender, ImageClickEventArgs e)
{
    BtnventCss.Style= "hom_but_a";                 
}

Can anyone please help me?

8 Answers

I'm also looking for the same solution. And I think of

BtnventCss.CssClass = BtnventCss.CssClass + " hom_but_a";

It seems working fine but I'm not sure if it is a good practice

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