What is LiteralControl? Why is it used?

Question

What is a LiteralControl? I was reading about LiteralContols but I am not sure why they are used. I used this code to list the controls in a page and - I have a page which has a label and a button. When I use this

foreach (Control control in Page.Controls)
{
    Response.Write(control.GetType().ToString() + " - <b> " + control.ID + "</b><br />");    

    if (control is LiteralControl)
    {
        Response.Write("Textt :" + ((LiteralControl)control).Text.ToString() + " - " + 
            Server.HtmlEncode(((LiteralControl)control).Text + "<br />") ); 
    }
}

I find that there are actually LiteralControls that are generated and listed before and after every control I have added to my page. Literal Controls also have only text property.

I am still not sure why LiteralControls are needed and used? Why are LiteralControls used? Why do controls that I add to my page have one LiteralControl placed before and after? And why do they have only Text Property?

Answer 1

A LiteralControl is used to inject HTML into your page at runtime.

Answer 2

From MSDN Literal Control represents HTML elements, text, and any other strings in an ASP.NET page that do not require processing on the server.

Also have a look at this for Literal Control usage

A label renders a <span> tag. It allows you to programmatically change the display characteristics of some text you want to display. A LiteralControl renders exactly whatever static HTML you want it to. There is no general advantage of using one over the other. One may be more useful than another in certain circumstances. For example, if you want to display static text, and make no programmatic changes to it, you might want to use a LiteralControl.