Required Field validation using Custom Validation for FCKEditor
//Following are the Html Part of aspx page. <FCKeditorV2:FCKeditor ID="fckeditor_test" runat="server" Height="500px" Width="520px" UseBROnCarriageReturn="true" Visible="true" > </FCKeditorV2:FCKeditor> <asp:CustomValidator ID="CustomValidator1" runat="server" ValidationGroup="validate" ClientValidationFunction="ValidateFCK" ErrorMessage="Pls Enter Some Comments"></asp:CustomValidator> <asp:Button ID="Button1" runat="server" Text="Button" CausesValidation="true" ValidationGroup="validate" /> //Following is the Javascript part function ValidateFCK(source, args) { var FEditorID = 'ctl00_ContentPlaceHolder1_fckeditor_test'; var text = GetPlainText(FEditorID); if (text.length == 0) { args.IsValid = false; FCKeditorAPI.GetInstance(FEditorID).Focus(); return; } args....