By default Cute Editor doesn't allow edit the Server side code. 
            When this property is set to true, Cute Editor will allow edit the Server side code. 
             (<%@ Page Language="C#" %> <%=MyString %> <asp:textbox id="textbox1" runat="server"></asp:textbox>)
            
        
        Namespace: CuteEditorAssembly: CuteEditor (in CuteEditor.dll) Version: 6.7.0.0