我在asp.net 4.0(vs2010)中工作。我正在嘗試實現一個AutoCompleteExtender ajax控件。起初我試圖使用頁面方法,但由於我在用戶控件中使用擴展器,因此無法使用此方法。我花了幾天時間研究並確定我需要使用啓用Ajax的WCF服務。所以我做到了。我脫離了我的應用程序,並創建了一個測試應用程序,它模仿我正在嘗試做的事情,並且它可以工作。我把控制權放在頁面上,指向服務和瞧,它激發了事件並且工作得很好。所以我將代碼移植到我的主應用程序中,並且它不起作用。通過不起作用我的意思是它不會在服務中觸發事件。我懷疑問題是ServicePath,但我嘗試了許多不同的途徑,似乎沒有任何工作。 這裏是從控制的代碼:Ajax AutoCompleteExtender不調用wcf服務
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<div style="float: left">
<asp:Label runat="server">Site Id:</asp:Label><br />
<asp:TextBox ID="txtSiteId" runat="server" AutoPostBack="True" OnTextChanged="TextChangedEvent"></asp:TextBox>
</div>
<div style="float: left; width: 200px; padding-left: 20px; margin-right: 5px">
<asp:Label runat="server">Entered Site Id's:</asp:Label><br />
<asp:Repeater ID="rptSiteIds" runat="server" OnItemCommand="rptSiteIds_ItemCommand">
<ItemTemplate>
<asp:LinkButton id="lnkRemove" Width="50" runat="server" Text="remove" CommandName="remove"></asp:LinkButton>
<asp:Label ID="lblItem" runat="server" Text='<%# Eval("Item") %>'></asp:Label>
</ItemTemplate>
<SeparatorTemplate>
<br>
</SeparatorTemplate>
</asp:Repeater>
</div>
<Controls:ConfirmationModal runat="server" ID="MaxSiteIdConfirmation" ModalType="Alert" OnOkClicked="ConfirmationOk_Clicked"
Title="Site Id Validation" Message="Too many site id's"
Width="300" />
<ajaxToolkit:AutoCompleteExtender
runat="server"
ID="AutoCompleteExtender"
TargetControlID="txtSiteId"
CompletionSetCount="10"
UseContextKey="True"
ServicePath="~\DataServices\WebDataServices.svc"
ServiceMethod="GetCompletionList" />
</ContentTemplate>
這裏從服務的代碼:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.Serialization;
using System.ServiceModel;
using System.ServiceModel.Activation;
using System.ServiceModel.Web;
using System.Text;
namespace Web.Internal.DataServices
{
[ServiceContract(Namespace = "WebDataServices")]
[AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]
public class WebDataServices
{
// To use HTTP GET, add [WebGet] attribute. (Default ResponseFormat is WebMessageFormat.Json)
// To create an operation that returns XML,
// add [WebGet(ResponseFormat=WebMessageFormat.Xml)],
// and include the following line in the operation body:
// WebOperationContext.Current.OutgoingResponse.ContentType = "text/xml";
[OperationContract]
public void DoWork()
{
// Add your operation implementation here
return;
}
// Add more operations here and mark them with [OperationContract]
[OperationContract]
public string[] GetCompletionList(string prefixText, int count)
{
//return names;
String[] autoCompleteWordList = (from s in CreateList()
where s.Contains(prefixText)
select s).Take(count).ToArray();
return autoCompleteWordList;
}
private string[] CreateList()
{
using (UnitOfWork uow = new UnitOfWork("DataService"))
{
return new ServiceDetailsBusiness(uow).GetDistinctIds().ToArray();
}
}
}
}
任何幫助,將不勝感激。