Is there a way to comment out markup in an .ASPX page?

Is there a way to comment out markup in an .ASPX page so that it isn’t delivered to the client? I have tried the standard comments <!-- --> but this just gets delivered as a comment and doesn’t prevent the control from rendering.

Answers:

Thank you for visiting the Q&A section on Magenaut. Please note that all the answers may not help you solve the issue immediately. So please treat them as advisements. If you found the post helpful (or not), leave a comment & I’ll get back to you as soon as possible.

Method 1

<%--
            Commented out HTML/CODE/Markup.  Anything with
            this block will not be parsed/handled by ASP.NET.

            <asp:Calendar runat="server"></asp:Calendar> 

            <%# Eval(“SomeProperty”) %>     
--%>

Source

Method 2

Bonus answer: The keyboard shortcut in Visual Studio for commenting out anything is Ctrl-KC . This works in a number of places, including C#, VB, Javascript, and aspx pages; it also works for SQL in SQL Management Studio.

You can either select the text to be commented out, or you can position your text inside a chunk to be commented out; for example, put your cursor inside the opening tag of a GridView, press Ctrl-KC, and the whole thing is commented out.

Method 3

FYI | ctrl + K, C is the comment shortcut in Visual Studio. ctrl + K, U uncomments.

Method 4

<%-- not rendered to browser --%>

Method 5

I believe you’re looking for:

<%-- your markup here --%>

That is a serverside comment and will not be delivered to the client … but it’s not optional. If you need this to be programmable, then you’ll want this answer 🙂

Method 6

Yes, there are special server side comments:

<%-- Text not sent to client  --%>

Method 7

While this works:

<%-- <%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="ht_tv1.Default" %> --%>
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="Blank._Default" %>

This won’t.

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" <%--Inherits="ht_tv1.Default"--%> Inherits="Blank._Default" %>

So you can’t comment out part of something which is what I want to do 99.9995% of the time.

Method 8

Another way assuming it’s not server side code you want to comment out is…

<asp:panel runat="server" visible="false">
    html here
</asp:panel>

All methods was sourced from stackoverflow.com or stackexchange.com, is licensed under cc by-sa 2.5, cc by-sa 3.0 and cc by-sa 4.0