Question

为什么我的自动填充ajax脚本不起作用：

这是我的WebService.cs：

 using System;
using System.Data;
using System.Web;
using System.Collections;
using System.Web.Services;
using System.Web.Services.Protocols;
using System.ComponentModel;
using System.Data.SqlClient;
using System.Collections.Generic;
  using System.Configuration;
using System.Web.Script.Services;



[ScriptService]
[WebService(Namespace = "http://tempuri.org/")]

[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]

// To allow this Web Service to be called from script, using ASP.NET AJAX, uncomment the following line. 

public class WebService : System.Web.Services.WebService {

    public WebService () {

        //Uncomment the following line if using designed components 
        //InitializeComponent(); 
    }

    [WebMethod]
    public string[] GetCountryInfo(string prefixText, int count)
{

 string sql = "Select * from questions Where username like @prefixText";
 SqlDataAdapter da = new SqlDataAdapter(sql,"estudent_piooConnectionString");
 da.SelectCommand.Parameters.Add("@prefixText", SqlDbType.VarChar, 50).Value = prefixText + "%";
 DataTable dt = new DataTable();
 da.Fill(dt);
 string[] items = new string[dt.Rows.Count];
 int i = 1;
 foreach (DataRow dr in dt.Rows)
 {
  items.SetValue(dr["username"].ToString(),i);
  i++;
 }
 return items;
} 

}

我的css：

    /*AutoComplete flyout */

.autocomplete_completionListElement {
保证金：0px！important; background-color：inherit; color：windowtext; border：buttonshadow; border-width：1px; 边框式：坚固; cursor：'default'; 溢出：自动; 身高：200px; text-align：left; list-style-type：none; padding：0px; }

/ *自动完成突出显示的项目* /

.autocomplete_highlightedListItem { background-color：#ffff99; 颜色：黑色; 填充：1px; }

/ *自动完成项* /

.autocomplete_listItem { 背景颜色：窗口; color：windowtext; 填充：1px; }

和文本框：

<asp:TextBox ID="TextBox2" runat="server"></asp:TextBox> <cc1:AutoCompleteExtender ID="AutoCompleteExtender1" CompletionListCssClass="autocomplete_completionListElement"
    CompletionListItemCssClass="autocomplete_listItem" CompletionSetCount="20"
CompletionInterval="1000"     DelimiterCharacters=";,:"
    CompletionListHighlightedItemCssClass="autocomplete_highlightedList MinimumPrefixLength="1" ServiceMethod="GetCountryInfo" ShowOnlyCurrentWordInCompletionListItem="true"   TargetControlID="TextBox2" ServicePath="WebService.asmx" runat="server"></cc1:AutoCompleteExtender>

Answer 1

查看以下文章，我已经介绍了该方案：

http://www.highoncoding.com/Articles/595_Implementing_Auto_Suggest_Using_AutoCompleteExtender_Control.aspx

自动完成asp.net

1 个答案: