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AutoCompleteExtender in Gridview not working

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Hello,

I have 3 AutoCompleteExtenders in a Webform. The first one for getting customers works as it should. I have 2 more in a gridview that are just not firing. I have used pretty much the same code as the first one. AutoCompleteExtender1 is the only one working. I have declared the scriptmanager in the master page also. How do I get the extenders in the footer & edit templates to work?

I put a break point in Items.asmx and I can see that the code run does not reach there.

Here is the code, a little long. Any help appreciated.

<%@ Page Title="" Language="C#" MasterPageFile="~/Site.Master" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="PipemanWebPortal.Views.PurchaseOrders.Default" %><%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="ajaxToolkit" %><asp:Content ID="Content1" ContentPlaceHolderID="MainContent" runat="server"><h2>Add Purchase Order</h2><script type="text/javascript">$(document).ready(function () {
            window.setTimeout(function () {$(".alert").fadeTo(1500, 0).slideUp(500, function () {$(this).remove();
                });
            }, 3000);
        });

        // On Page Load
        $(function () {
            SetDatePicker();
        });
        // On UpdatePanel Refresh
        var prm = Sys.WebForms.PageRequestManager.getInstance();
        if (prm != null) {
            prm.add_endRequest(function (sender, e) {
                if (sender._postBackSettings.panelsToUpdate != null) {
                    SetDatePicker();$(".datepicker-orient-bottom").hide();
                }
            });
        };

        function SetDatePicker() {
            $('#datetimepicker').datepicker
                ({
                    format: 'dd.MM.yyyy',
                    inline: true,
                    todayHighlight: true,
                    autoclose: true
                });
        }</script><div runat="server" visible="false" id="AlertDanger" class="alert alert-danger"><a href="#" class="close" data-dismiss="alert">&times;</a><strong>You must choose a date</strong></div><div runat="server" visible="false" id="AlertSuccess" class="alert alert-success"><a href="#" class="close" data-dismiss="alert">&times;</a><strong>Purchase requisition saved successfully</strong></div><asp:Panel ID="PODetails" runat="server"><div><asp:UpdatePanel ID="UpdatePanelPO" runat="server"><ContentTemplate><asp:Panel ID="Panel1" runat="server" BackColor="#E6E6E6"><fieldset class="form-horizontal"><div class="row"><div class="form-group col-sm-6"><asp:Label runat="server" CssClass="col-sm-6 control-label">Required Date</asp:Label><div class="col-sm-6"><div class="input-group date" id="datetimepicker"><span class="input-group-addon"><span class="glyphicon glyphicon-calendar"></span></span><asp:TextBox ID="txtRequiredDate" runat="server" CssClass="form-control"></asp:TextBox><asp:RequiredFieldValidator runat="server" ControlToValidate="txtRequiredDate" Display="Dynamic"
                                                CssClass="text-danger" ErrorMessage="The Required Date field is required." /></div></div></div><div class="form-group col-sm-6"><asp:Label runat="server" CssClass="col-sm-6 control-label">No.</asp:Label><div class="col-sm-6"><asp:Label ID="lblDocNum" runat="server" CssClass="form-control"></asp:Label></div></div></div></fieldset><fieldset class="form-horizontal"><div class="row"><div class="form-group col-sm-6"><asp:Label runat="server" CssClass="col-sm-6 control-label" class="">Cust. PO No.</asp:Label><div class="col-sm-6"><div class="input-group"><asp:TextBox ID="txtPurchaseOrderNo" runat="server" CssClass="form-control"></asp:TextBox><asp:RequiredFieldValidator runat="server" ControlToValidate="txtPurchaseOrderNo" Display="Dynamic"
                                                CssClass="text-danger" ErrorMessage="The Cust. Purchase Order No field is required." /></div></div></div><div class="form-group col-sm-6"><asp:Label runat="server" CssClass="col-sm-6 control-label">Contact</asp:Label><div class="col-sm-6"><div class="input-group"><asp:TextBox ID="txtContact" runat="server" CssClass="form-control"></asp:TextBox><asp:RequiredFieldValidator runat="server" ControlToValidate="txtContact" Display="Dynamic"
                                                CssClass="text-danger" ErrorMessage="The Contact field is required." /></div></div></div></div></fieldset><fieldset class="form-horizontal"><div class="row"><div class="form-group col-sm-3"><asp:Label runat="server" CssClass="col-sm-12 control-label" class="">Customer Name</asp:Label></div><div class="form-group col-sm-9"><asp:TextBox ID="txtCustomer" runat="server" CssClass="form-control"></asp:TextBox><ajaxToolkit:AutoCompleteExtender
                                        ID="AutoCompleteExtender1"
                                        runat="server"
                                        TargetControlID="txtCustomer"
                                        ServicePath="../../Web_Service/Customers.asmx"
                                        ServiceMethod="GetCustomers"
                                        MinimumPrefixLength="2"
                                        EnableCaching="true"
                                        CompletionSetCount="10"
                                        CompletionInterval="10"
                                        DelimiterCharacters=";, :"
                                        ShowOnlyCurrentWordInCompletionListItem="true"></ajaxToolkit:AutoCompleteExtender><asp:RequiredFieldValidator runat="server" ControlToValidate="txtCustomer" Display="Dynamic"
                                        CssClass="text-danger" ErrorMessage="The Customer field is required." /></div></div></div></fieldset></asp:Panel><asp:GridView ID="pOGridView"
                        runat="server"
                        AutoGenerateColumns="False"
                        AllowPaging="True"
                        AllowSorting="True"
                        ShowFooter="True"
                        OnRowEditing="pOGridView_RowEditing"
                        OnRowUpdating="pOGridView_RowUpdating"
                        OnPageIndexChanging="pOGridView_PageIndexChanging"
                        OnRowCancelingEdit="pOGridView_RowCancelingEdit"
                        PagerStyle-CssClass="bs-pagination"
                        ShowHeaderWhenEmpty="True"
                        EmptyDataText="No Records Found"
                        CssClass="table table-striped table-bordered table-hover table-condensed"><Columns><asp:TemplateField ItemStyle-Width="30px" HeaderText="#"><ItemTemplate><asp:Label ID="lblLineNum" Text='<%# Container.DataItemIndex + 1 %>' runat="server" /></ItemTemplate></asp:TemplateField><asp:TemplateField ItemStyle-Width="120px" HeaderText="Item"><ItemTemplate><asp:Label ID="lblItem" runat="server"
                                        Text='<%# Bind("Item")%>'></asp:Label></ItemTemplate><EditItemTemplate><asp:TextBox ID="txtItem" runat="server" Width="300px" Text='<%# Bind("Item")%>'></asp:TextBox><ajaxToolkit:AutoCompleteExtender
                                        ID="AutoCompleteExtender2"
                                        runat="server"
                                        TargetControlID="txtItem"
                                        ServicePath="../../Web_Service/Items.asmx"
                                        ServiceMethod="GetItems"
                                        MinimumPrefixLength="2"
                                        EnableCaching="true"
                                        CompletionSetCount="10"
                                        CompletionInterval="10"
                                        DelimiterCharacters=";, :"
                                        ShowOnlyCurrentWordInCompletionListItem="true"></ajaxToolkit:AutoCompleteExtender><asp:RequiredFieldValidator runat="server" ControlToValidate="txtItem" Display="Dynamic" ValidationGroup="Edit"
                                        CssClass="text-danger" ErrorMessage="The Item field is required." /></EditItemTemplate><FooterTemplate><asp:TextBox ID="txtItem" runat="server" Width="300px"></asp:TextBox><ajaxToolkit:AutoCompleteExtender
                                        ID="AutoCompleteExtender3"
                                        runat="server"
                                        TargetControlID="txtItem"
                                        ServicePath="../../Web_Service/Items.asmx"
                                        ServiceMethod="GetItems"
                                        MinimumPrefixLength="2"
                                        EnableCaching="true"
                                        CompletionSetCount="10"
                                        CompletionInterval="10"
                                        DelimiterCharacters=";, :"
                                        ShowOnlyCurrentWordInCompletionListItem="true"></ajaxToolkit:AutoCompleteExtender><asp:RequiredFieldValidator runat="server" ControlToValidate="txtItem" Display="Dynamic" ValidationGroup="Insert"
                                        CssClass="text-danger" InitialValue="-1" ErrorMessage="The Item field is required." /></FooterTemplate></asp:TemplateField><asp:TemplateField ItemStyle-Width="60px" HeaderText="Qty."><ItemTemplate><asp:Label ID="lblQuantity" runat="server"
                                        Text='<%# Bind("Quantity")%>'></asp:Label></ItemTemplate><EditItemTemplate><asp:TextBox ID="txtQuantity" runat="server" Width="100px"
                                        Text='<%# Bind("Quantity")%>'></asp:TextBox><asp:RequiredFieldValidator runat="server" ControlToValidate="txtQuantity" Display="Dynamic" ValidationGroup="Edit"
                                        CssClass="text-danger" ErrorMessage="The Quantity field is required." /><asp:RegularExpressionValidator ControlToValidate="txtQuantity" runat="server" CssClass="text-danger" Display="Dynamic"
                                        ErrorMessage="Only integers allowed." ValidationExpression="^(0|[1-9]\d*)$"
                                        ValidationGroup="Edit"></asp:RegularExpressionValidator></EditItemTemplate><FooterTemplate><asp:TextBox ID="txtQuantity" runat="server" Width="100px"></asp:TextBox><asp:RequiredFieldValidator runat="server" ControlToValidate="txtQuantity" Display="Dynamic" ValidationGroup="Insert"
                                        CssClass="text-danger" ErrorMessage="The Quantity field is required." /><asp:RegularExpressionValidator ControlToValidate="txtQuantity" runat="server" CssClass="text-danger" Display="Dynamic"
                                        ErrorMessage="Only integers allowed." ValidationExpression="^(0|[1-9]\d*)$"
                                        ValidationGroup="Insert"></asp:RegularExpressionValidator></FooterTemplate></asp:TemplateField><asp:TemplateField ItemStyle-Width="80px" HeaderText="Unit Price"><ItemTemplate><asp:Label ID="lblUnitPrice" runat="server"
                                        Text='<%# Bind("UnitPrice")%>'></asp:Label></ItemTemplate><EditItemTemplate><asp:TextBox ID="txtUnitPrice" runat="server" Width="100px"
                                        Text='<%# Bind("UnitPrice")%>'></asp:TextBox><asp:RequiredFieldValidator runat="server" ControlToValidate="txtUnitPrice" Display="Dynamic" ValidationGroup="Edit"
                                        CssClass="text-danger" ErrorMessage="The Unit Price is required." /><asp:RegularExpressionValidator ControlToValidate="txtUnitPrice" runat="server" CssClass="text-danger" Display="Dynamic"
                                        ErrorMessage="Only numbers allowed." ValidationExpression="^[0-9]{0,6}(\.[0-9]{1,2})?$"
                                        ValidationGroup="Edit"></asp:RegularExpressionValidator></EditItemTemplate><FooterTemplate><asp:TextBox ID="txtUnitPrice" runat="server" Width="100px"></asp:TextBox><asp:RequiredFieldValidator runat="server" ControlToValidate="txtUnitPrice" Display="Dynamic" ValidationGroup="Insert"
                                        CssClass="text-danger" ErrorMessage="The Unit Price is required." /><asp:RegularExpressionValidator ControlToValidate="txtUnitPrice" runat="server" CssClass="text-danger" Display="Dynamic"
                                        ErrorMessage="Only numbers allowed." ValidationExpression="^[0-9]{0,6}(\.[0-9]{1,2})?$"
                                        ValidationGroup="Insert"></asp:RegularExpressionValidator></FooterTemplate></asp:TemplateField><asp:TemplateField ItemStyle-Width="80px" HeaderText="Order Price"><ItemTemplate><asp:Label ID="lblOrderPrice" runat="server"
                                        Text='<%# Bind("OrderPrice")%>'></asp:Label></ItemTemplate><EditItemTemplate><asp:TextBox ID="txtOrderPrice" runat="server" Width="100px"
                                        Text='<%# Bind("OrderPrice")%>'></asp:TextBox><asp:RequiredFieldValidator runat="server" ControlToValidate="txtOrderPrice" Display="Dynamic" ValidationGroup="Edit"
                                        CssClass="text-danger" ErrorMessage="The Order Price is required." /><asp:RegularExpressionValidator ControlToValidate="txtOrderPrice" runat="server" CssClass="text-danger" Display="Dynamic"
                                        ErrorMessage="Only numbers allowed." ValidationExpression="^[0-9]{0,6}(\.[0-9]{1,2})?$"
                                        ValidationGroup="Edit"></asp:RegularExpressionValidator></EditItemTemplate><FooterTemplate><asp:TextBox ID="txtOrderPrice" runat="server" Width="100px"></asp:TextBox><asp:RequiredFieldValidator runat="server" ControlToValidate="txtUnitPrice" Display="Dynamic" ValidationGroup="Insert"
                                        CssClass="text-danger" ErrorMessage="The Order Price is required." /><asp:RegularExpressionValidator ControlToValidate="txtOrderPrice" runat="server" CssClass="text-danger" Display="Dynamic"
                                        ErrorMessage="Only numbers allowed." ValidationExpression="^[0-9]{0,6}(\.[0-9]{1,2})?$"
                                        ValidationGroup="Insert"></asp:RegularExpressionValidator></FooterTemplate></asp:TemplateField><asp:CommandField ShowEditButton="True" ValidationGroup="Edit" /><asp:TemplateField><ItemTemplate><asp:LinkButton ID="lnkRemove" runat="server"
                                        CommandArgument='<%# Bind("LineNum")%>'
                                        OnClientClick="return confirm('Are you sure you want to delete this row?')"
                                        Text="Delete" OnClick="DeleteRowPurchaseOrder"></asp:LinkButton></ItemTemplate><FooterTemplate><asp:Button ID="btnAdd" runat="server" Text="Add" ValidationGroup="Insert" CssClass="btn btn-primary btn-sm"
                                        OnClick="AddRowPurchaseOrder" /></FooterTemplate></asp:TemplateField></Columns></asp:GridView><div class="form-group"><div class="row"><div class="col-sm-3"><asp:Button runat="server" ID="InsertButton" OnClick="Insert" Text="Insert" CssClass="btn btn-block btn-primary" /></div><div class="col-sm-3"><asp:Button runat="server" ID="CancelButton" OnClick="Cancel" Text="Cancel" CausesValidation="false" CssClass="btn btn-block btn-default" /></div></div></div></ContentTemplate></asp:UpdatePanel></div></asp:Panel></asp:Content>


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