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Editorial Team
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Asked: 2026-05-13T11:42:52+00:00

i’m using some components. When page render, components generate html comment tags. if i’m

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i’m using some components. When page render, components generate html comment tags. if i’m using this component 10 times on one page, html comments inserted 10 times.

How to remove html comment tag before render page?

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1 Answer

  1. Editorial Team

    Create a custom server control based on the 3rd party assembly, like so:

    namespace ServerControls
{
    [ToolboxData("<{0}:LabelWithComment runat=server></{0}:LabelWithComment>")]
    public class LabelWithComment : Label
    {
        protected override void Render(HtmlTextWriter output)
        {
            var htmlFromBaseClass = new StringBuilder();
            var htmlTextWriterForBaseClass = 
                new HtmlTextWriter(new StringWriter(htmlFromBaseClass));
            base.Render(htmlTextWriterForBaseClass);
            var modifiedHtml = ModifyHtmlUsing(htmlFromBaseClass);
            output.Write(modifiedHtml);
        }

        private static string ModifyHtmlUsing(StringBuilder stringBuilder)
        {
            stringBuilder.Replace("<!-- some comment -->", "");
            return stringBuilder.ToString();
        }
    }
}

    Then customize the ModifyHtmlUsing method to repalce whatever you want.

    Then include this directive on the page where you are using the control:

    <%@ Register Assembly="ServerControls" Namespace="ServerControls" TagPrefix="Custom"  %>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
    <Custom:LabelWithComment ID="lblLabelWithComments" 
        Text="Some Text <!-- some comment -->" runat="server" />
    </div>
    </form>
</body>
</html>
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