javascript - Jquery Autocomplete()/Catcomplete() 函数不起作用

Question

当我使用下面的代码从我的网络服务中获取 catcomplete 自动完成智能感知时，我无法看到它。我的网络服务返回以下字符串

[{label:"TechCrunch",category:"Website"},{label:"Techcrunch",category:"Tag"},      {label:"techno",category:"Tag"}] 


 $(document).ready(function() {
       $("#<%= txtinputtag.ClientID%>").catcomplete({
      source: function(request,response){//error if I hard code this ajax call will with a an array works fine 
               $.ajax({
                   type: "POST",
                   contentType: "application/json; charset=utf-8",
                   url: "../Tag/Follow.aspx/GetIntellisense",
                   dataType: "json",
                   data: "{'searchtext':'" + request.term + "'}",
                   success: function (data) {
                       if (data.d != "") {
                           //console.log(data.d);//this show the desired json output as returned from the web service
                            response(data.d);
                       }
                   }
               });
           },
           select: function(event, ui) {
               $(this).val("");
               return false;
           },
       });
   });

这是返回字符串的WebMethod

 [WebMethod]
        public static string GetIntellisense(string searchtext)
    {
        Debugger.Launch();
        var uc = new UtilityClass();

        List<DTOWebsite> lstDtoWebsites = uc.GetIntellisense(searchtext);

        string str = "[";

        foreach (DTOWebsite dto in lstDtoWebsites)
        {
            str += "{label:\""+dto.WebSiteName +"\",category:\""+dto.WebsiteType +"\"},";

        }
        str = str.Remove(str.Length-1,1);
        str += "]";

        return str.ToString();
    }

Answer 1

您需要在函数中接受 2 个分配给 source 参数的参数:

1. 请求具有搜索的术语

2. response 是您将结果传递给的回调函数

   source: function(request, response){ ...
   

http://jsfiddle.net/h7uahuhx/