Editor Properties:

ActiveMode - Active editing panel (Design, Html, and Preview) on control loaded

AutoFocus - If true, editing panel is focused and cursor is set inside it ("Design" or "HTML text") on initial load or editing panel change

Content - Gets/sets HTML content of HTMLEditor

Height - Sets the height of the body of the HTMLEditor

IgnoreTab - If true, Tab key navigation is suppressed inside HTMLEditor control

InitialCleanUp - If true, HTMLEditor's content is cleaned up on initial load. MS Word specific tags are removed

NoScript - If true, JavaScript code is suppressed in HTMLEditor's content

NoUnicode - If true, all Unicode characters in HTML content are replaced with &#code;

OnClientActiveModeChanged - The client-side script that executes after active mode (editing panel) changed

OnClientBeforeActiveModeChanged - The client-side script that executes before active mode (editing panel) changed

SuppressTabInDesignMode - If true, no white spaces inserted on Tab key press in Design mode. Default Tab key navigation is processing in this case

Code:

 <%-- ScriptManager control manages client script for AJAX enabled ASP.NET pages.This enables partial-page rendering and Web-service calls.You have to used this if you want to use ajax control--%>
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
 <%--Use the Editor control here--%>
<cc1:Editor ID="Editor1" runat="server" Width="450px" Height="200px"/>

Run the project

When you click submit button then entered value will show in the Label.