Question

What Literal control is used for in asp.net? and What is the difference between them and Label control?

Answer 1

The major difference is that the Label Control adds the span tag to the text (property) you set, allowing to apply a style to it:

<span>My Label text</span> 

The Literal Control allows you to render any kind of content. You can use it to render scripts, hmtl and any other type of document content. It doesn’t change the string you provide in the Text property.

Note: the Label control allows you to render straight HTML too, but it puts all your text in span tags as mentioned. So, for rendering large HTML portions a Literal control is the way to go.

P.S.: In HTML there is a <label> tag. If you use the AssociatedControlId property of the Label control, it will render as HTML <label> (thanks to Ray for pointing that out.)

For example:

<asp:Label runat='server' id='FirstNameLabel' AssociatedControlId='FirstNameTextBox'> Input First Name: </asp:Label> <asp:Textbox runat='server' id='FirstNameTextBox' /> 

Will render as:

<label for='FirstNameTextbox' id='FirstNameLabel'>Input first name:</label> <input type='text' id='FirstNameTextbox' name='FirstNameTextBox' /> 

See also here on W3 Schools.