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Editorial Team
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Asked: 2026-05-27T03:05:29+00:00

If I have a form called index.aspx and I want to set the background

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If I have a form called index.aspx and I want to set the background colour programatically how do I do such a thing? Like if I wanted to set the pages background by calling a method called Changebackground? 

Sub ChangeBackground()
       ' change forms html here 
    End Sub
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1 Answer

  1. Editorial Team

    You can first make the “body” element a server control, assign it an ID, then set CSS style to the body element’s “style” attribute, for example:

    ASPX (Note that “body” element is now a server control):

    <body runat="server" id="body">
    <form id="form1" runat="server">
    <div>
    </div>
    </form>
</body>

    ASPX.CS:

    protected void Page_Load(object sender, EventArgs e)
{
     body.Attributes["style"] = "background-color:red";
}

    This code will set the page background to red.

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