rich text box in asp.net..

 
<asp:TemplateField SortExpression="disc" HeaderText="Description">
<EditItemTemplate>
<%-- 
Text='<%# Bind("disc") %>' runat="server" Height="144px" Width="402px"/> 
--%> 
<asp:TextBox runat="server" Text='<%# Bind("disc") %>' id="TextBox2"
Columns="50" TextMode="MultiLine" Rows="3">asp:TextBox>
<asp:requiredfieldvalidator id="RequiredFieldValidator1" runat="server"
errormessage="You must enter a description" controltovalidate="TextBox2">*asp:requiredfieldvalidator>
EditItemTemplate>
<ItemTemplate>
<asp:Label runat="server" Text='<%# Bind("disc") %>' id="Label2">asp:Label>
ItemTemplate>
<InsertItemTemplate>
<%-- 
Text='<%# Bind("disc") %>' runat="server" Height="144px" Width="402px"/> --%>

<asp:TextBox runat="server" Text='<%# Bind("disc") %>' id="TextBox2" Columns="50" TextMode="MultiLine" Rows="3">asp:TextBox>
<asp:requiredfieldvalidator id="RequiredFieldValidator1" runat="server"
errormessage="You must enter a description" controltovalidate="TextBox2">*asp:requiredfieldvalidator>
InsertItemTemplate>
<HeaderStyle Font-Bold="True" ForeColor="White" />
asp:TemplateField>