# Spellchecker Overview

To enable spell checking in your web application you need to accomplish the following 2 tasks:

1. Copy the needed dictionary files in your project's App_Data folder:The files are located in your **\[Controls installation folder]\App_Data\RadSpell**. Create a **RadSpell** folder in your project's **App_Data** folder and copy the dictionaries there

   ![Copy Dictionaries](https://www.telerik.com/products/aspnet-ajax/documentation/assets/88344998139ac49f985c6d86ae114cb4/radeditorcopydictionaries.png)

2. Add the SpellCheck handler in your **web.config** file. This can be done by using one of the following approaches:

3. Manually add the handler in your **web.config** file (in the **httpHandlers** section):

   ```XML
   <add verb="*" validate="false" path="Telerik.Web.UI.SpellCheckHandler.axd" type="Telerik.Web.UI.SpellCheckHandler" />
   ```

4. Use the RadEditor's Smart Tag in Visual Studio. Note that the smart tag will appear only if you have the **Telerik.Web.UI.dll** file in your project's **bin** folder or in the GAC:

   ![RadEditor Smart Tag](https://www.telerik.com/products/aspnet-ajax/documentation/assets/3bb4a9d8ec8a8d7d97f5b7af3cef2ed8/radeditorsmarttags.png)

5. Set the Language property of the RadEditor (by default it is set to "en-US"). If you want to change the language, you can do this by

6. declaring the property in the RadEditor's declaration:

   ```ASP.NET
   <telerik:RadEditor RenderMode="Lightweight" runat="server" ID="RadEditor1">
   	<Languages>
   		<telerik:SpellCheckerLanguage Code="fr-FR" Title="French" />
   	</Languages>
   </telerik:RadEditor>
   ```

7. adding the language in the RadEditor's Languages collection. It is recommended to add the language in Page_Load

```C#
if (!Page.IsPostBack)
{
	RadEditor1.Languages.Add(new SpellCheckerLanguage("fr-FR", "French"));
}
```

```VB
Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
	If Not Page.IsPostBack Then
		RadEditor1.Languages.Add(New SpellCheckerLanguage("fr-FR", "French"))
	End If
End Sub
```