<div class="search_middle" style="z-index: 1">
                        <atlas:ScriptManager ID="ScriptManagerAjaxSearch" runat="server">
                        </atlas:ScriptManager>
                        <atlas:UpdatePanel ID="AjaxSearch" runat="server">
                            <ContentTemplate>
                                <asp:TextBox ID="txtAjaxSearch" runat="server"></asp:TextBox>
                                <asp:Button ID="buttonAjaxSearch" runat="server" Text="搜狗"></asp:Button>
                                <ajaxToolkit:AutoCompleteExtender ID="AutoCompleteAjaxSearch" runat="server" EnableCaching="true"
                                    MinimumPrefixLength="3" ServiceMethod="GetAjaxGoodsName" CompletionSetCount="10"
                                    ServicePath="/ShopWeb/WebService/WebService.asmx" TargetControlID="txtAjaxSearch">
                                </ajaxToolkit:AutoCompleteExtender>
                            </ContentTemplate>
                        </atlas:UpdatePanel>
                    </div>这样创建webservice后老是不对 请高人指点