AJAX :: Required Field Validator Inside User Control In GridView Not Working

May 7, 2015

I have created user control inside update panel but validation is not working.. and i have 10 these usercontrols so how can i do validation on save..?

<%@ Control Language="C#" AutoEventWireup="true" CodeBehind="UpTextBox.ascx.cs" Inherits="Retail.control.UpTextBox" %>
<asp:UpdatePanel ID="UpdatePaneltxt" runat="server" UpdateMode="Conditional">
<ContentTemplate>
<asp:TextBox ID="txtTextBox" runat="server" Width="217px" class="round default-width-input"

[code]....

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