validating input controls inside radgrid

[Hiren]

Inside repeater i had placed radgrid and a button outside the repeater, when i click on button i want to validation input data inside radgrid control, using javascript.

how to find radtextbox inside radgrid which is in repeater control.

<asp:Repeater ID="rptrGroup" runat="server" OnItemDataBound="rptrGroup_ItemDataBound">
  <ItemTemplate>
   <table class="table_data">
        <tr><td colspan="2">
              <telerik:RadGrid ID="rgdGroup" runat="server" Width="100%" GridLines="Vertical" AutoGenerateColumns="False"  OnItemDataBound="rgdGroup_ItemDataBound"  OnItemCommand="rgdGroup_ItemCommand" CellSpacing="0">                     <MasterTableView DataKeyNames="Id">
               <Columns>
              <telerik:GridCheckBoxColumn HeaderText="Status" DataField="Status" UniqueName="Status">
             </telerik:GridCheckBoxColumn>
             <telerik:GridTemplateColumn HeaderText="Order" DataField="Order" UniqueName="ActionOrder">
             <ItemTemplate>
            <telerik:RadTextBox ID="rtbOrder" runat="server" Text='<%# Eval("Order") %>'  Width="48px" MaxLength="3" />
          </ItemTemplate>
           </telerik:GridTemplateColumn>
          <telerik:GridBoundColumn HeaderText="Item" DataField="ItemName" UniqueName="ItemName">
          </telerik:GridBoundColumn>
         <telerik:GridTemplateColumn HeaderText="Date" DataField="Date" UniqueName="Date">
         <ItemTemplate>
        <telerik:RadDatePicker ID="rdpDate" runat="server" Culture="en-US" Width="100px" SelectedDate='<%# Eval("Date") %>'>
        <Calendar ID="cldrDate" UseRowHeadersAsSelectors="False" UseColumnHeadersAsSelectors="False"
          ViewSelectorText="x" runat="server" >
       </Calendar>
       <DateInput ID="diDate" DisplayDateFormat="MM/dd/yyyy" DateFormat="MM/dd/yyyy"  runat="server">
        </DateInput>
        <DatePopupButton ImageUrl="~/App_Themes/images/calendar_ico.png" HoverImageUrl="~/App_Themes/images/calendar_ico.png">
        </DatePopupButton>
      </telerik:RadDatePicker>
       </ItemTemplate>
       </telerik:GridTemplateColumn>
       <telerik:GridTemplateColumn HeaderText="Remark" DataField="Remark" UniqueName="Remark">
       <ItemTemplate>
    <telerik:RadTextBox ID="rtbRemark" runat="server" Text='<%# Eval("Remark") %>' />
    </ItemTemplate>
     </telerik:GridTemplateColumn>
     <telerik:GridButtonColumn HeaderText="Active/Inactive" ButtonType="LinkButton" UniqueName="lnkItemActiveInActive"  ItemStyle-VerticalAlign="Middle" CommandName="ItemStatus">
    </telerik:GridButtonColumn>
   </Columns>
   </MasterTableView>
   </telerik:RadGrid>
</td>
 </tr>
 </table>
 </ItemTemplate>
</asp:Repeater>

[Princy]

Hello Giri,
 
You can try the following code library approach to access the ItemTemplate control from client side.
Accessing server controls in a grid template on the client.

Thanks,
Princy.