First you have to add the Telerik.Web.UI.dll in Bin
folder and Then right click on the toolbox and add new
tab. right click on the tab and click on choose item
and then browse the dll from your project's bin folder
You have to add folder App_Data. in this folder you
have to make a new folder name RadSpell and copy a file
en-Us.tdf in this.This file is used to check the
Spelling and autocorrect it.
in the .aspx page:
<%@ Register Assembly="Telerik.Web.UI"
Namespace="Telerik.Web.UI" TagPrefix="telerik" %>
<form id="form1" runat="server">
<telerik:RadScriptManager ID="ScriptManager1"
runat="server" EnableTheming="True">
</telerik:RadScriptManager>
<asp:updatepanel id="UpdatePanel1"
runat="server">
<contenttemplate>
<telerik:radeditor id="RadEditor1"
runat="server" Skin="Outlook" ToolsFile
="~/ToolsFile.xml">
<Content>
</Content>
</telerik:radeditor>
</contenttemplate>
</asp:updatepanel>
</form>
ToolsFile.Xml:
<?xml version="1.0" encoding="utf-8" ?>
<root>
<tools name="MainToolbar" enabled="true">
<tool name="Unlink"/>
<tool name="ToggleTableBorder"/>
<tool name="ToggleScreenMode"/>
<tool name="InsertSymbol"/>
<tool name="Undo"/>
<tool name="Redo"/>
<tool name="Cut"/>
<tool name="Copy"/>
<tool name="Paste" shortcut="CTRL+v"/>
<tool name="PasteFromWord"/>
<tool name="PastePlainText"/>
<tool name="PasteAsHtml"/>
<tool name="Print"/>
<tool name="FindAndReplace"/>
<tool name="SelectAll"/>
<tool name="InsertParagraph"/>
<tool name="InsertDate"/>
<tool name="InsertTime"/>
<tool name="Bold"/>
<tool name="Italic"/>
<tool name="Underline"/>
<tool name="JustifyLeft"/>
<tool name="JustifyCenter"/>
<tool name="JustifyRight"/>
<tool name="JustifyFull"/>
<tool name="JustifyNone"/>
</tools>
<tools enabled="true">
<tool name="ajaxspellcheck" />
<tool name="InsertTable"/>
<tool name="ConvertToLower"/>
<tool name="ConvertToUpper"/>
<tool name="Indent"/>
<tool name="Outdent"/>
<tool name="InsertOrderedList"/>
<tool name="InsertUnorderedList"/>
<tool name="ForeColor"/>
<tool name="BackColor"/>
<tool name="FontName"/>
<tool name="FontSize"/>
<tool name="RealFontSize"/>
<tool name="FormatBlock"/>
<tool name="Zoom"/>
</tools>
</root>
In web.config File:
<httpHandlers>
<add
path="Telerik.Web.UI.DialogHandler.aspx"
type="Telerik.Web.UI.DialogHandler, Telerik.Web.UI,
Version=2008.3.1125.20, Culture=neutral,
PublicKeyToken=121fae78165ba3d4" verb="*"
validate="false"/>
<add
path="Telerik.Web.UI.SpellCheckHandler.axd"
type="Telerik.Web.UI.SpellCheckHandler, Telerik.Web.UI,
Version=2008.3.1125.20, Culture=neutral,
PublicKeyToken=121fae78165ba3d4" verb="*"
validate="false"/>
<add
path="Telerik.Web.UI.WebResource.axd"
type="Telerik.Web.UI.WebResource, Telerik.Web.UI,
Version=2008.3.1125.20, Culture=neutral,
PublicKeyToken=121fae78165ba3d4" verb="*"
validate="false"/>
</httpHandlers>