jquery datetime picker in datagrid control c#,asp.net

//Add below javascript to header section on aspx page



 <script type="text/javascript">
 $(function () {
        var strdateFormat = "<%=ReqDateFormat %>";
        strdateFormat = strdateFormat.replace('MM', 'mm');
        strdateFormat = strdateFormat.replace('MMM', 'mmm');
        strdateFormat = strdateFormat.replace('yyyy', 'yy');
        //alert(strdateFormat);
          //    $("[id$=txtRequestedDate]").datepicker({
          //        showOn: 'button',
          //        buttonImageOnly: true,
          //        buttonImage: 'images/calendarbtn.gif',
          //        dateFormat: strdateFormat
          //    });
          //});
        var n = 0;
        $("[id*='txtRequestedDate']").each(function () {
            n++;
            tempField = this.id.split("-");
            this.id = tempField[0] + "-" + n;
            $("#" + this.id).datepicker({
                showOn: 'button',
                buttonImageOnly: true,
                buttonImage: 'images/calendarbtn.gif',
                dateFormat: strdateFormat
            });
        });
    });
    </script>

 <asp:DataGrid ID="DataGrid1" runat="server" AutoGenerateColumns="False" >
                    <Columns>
  <asp:TemplateColumn>
                            <ItemStyle Width="150px" />
                            <ItemTemplate>
                                <asp:TextBox ID="txtitem" Width="100px" runat="server" MaxLength="25"></asp:TextBox>&nbsp;&nbsp;
                                <asp:HiddenField ID="hdnTxtItem" runat="server" />
                                <asp:ImageButton ID="img_search" runat="server" Width="20px" Height="20px" ImageAlign="AbsBottom"
                                    ImageUrl="~/images/magnifying-glass.png"></asp:ImageButton>
                            </ItemTemplate>
                        </asp:TemplateColumn>

 <asp:TemplateColumn>
                            <ItemStyle CssClass="centerAlignGridColumn" Width="55px" />
                            <ItemTemplate>
                                <asp:TextBox ID="txtRequestedDate" Width="120px" MaxLength="12"  runat="server"></asp:TextBox>
                              <%--  <ajaxToolkit:FilteredTextBoxExtender ID="tbqtynumeric" runat="server" TargetControlID="txtQty"
                                     Enabled="true" />--%>
                            </ItemTemplate>
                        </asp:TemplateColumn> </Columns>
                </asp:DataGrid>

//.cs page bind the datagrid with some data
//You can find the control as shown below
foreach (DataGridItem dgi in DataGrid1.Items)
                {
 TextBox TReq = (TextBox)dgi.FindControl("txtRequestedDate");
}