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.Net 文本框实现内容提示(仿Google、Baidu)

1.Demo下载：

2.创建数据库、表（我用的sqlserver2008数据库）

 1 CREATE TABLE Ceshi
 2 (
 3    id VARCHAR(50) PRIMARY KEY NOT NULL,
 4    cname VARCHAR(30) 
 5 )
 6 GO 
 7 INSERT INTO Ceshi
 8 SELECT NEWID(),'jack1' UNION
 9 SELECT NEWID(),'jack2' UNION
10 SELECT NEWID(),'jack3' UNION
11 SELECT NEWID(),'jack4' UNION
12 SELECT NEWID(),'jack5' UNION
13 SELECT NEWID(),'peter1' UNION
14 SELECT NEWID(),'peter2' UNION
15 SELECT NEWID(),'peter3' UNION
16 SELECT NEWID(),'peter4' UNION
17 SELECT NEWID(),'peter5' UNION
18 SELECT NEWID(),'姜某某' UNION
19 SELECT NEWID(),'江某某' 
20 go

View Code

3.创建自定义函数

 1 create function [dbo].[f_GetPy](@str nvarchar(4000))
 2 returns nvarchar(4000)
 3 as
 4 begin
 5 declare @strlen int,@re nvarchar(4000)
 6 declare @t table(chr nchar(1) collate Chinese_PRC_CI_AS,letter nchar(1))
 7 insert into @t(chr,letter)
 8 select '吖 ', 'A ' union all select '八 ', 'B ' union all
 9    select '嚓 ', 'C ' union all select '咑 ', 'D ' union all
10    select '妸 ', 'E ' union all select '发 ', 'F ' union all
11    select '旮 ', 'G ' union all select '铪 ', 'H ' union all
12    select '丌 ', 'J ' union all select '咔 ', 'K ' union all
13    select '垃 ', 'L ' union all select '嘸 ', 'M ' union all
14    select '拏 ', 'N ' union all select '噢 ', 'O ' union all
15    select '妑 ', 'P ' union all select '七 ', 'Q ' union all
16    select '呥 ', 'R ' union all select '仨 ', 'S ' union all
17    select '他 ', 'T ' union all select '屲 ', 'W ' union all
18    select '夕 ', 'X ' union all select '丫 ', 'Y ' union all
19    select '帀 ', 'Z '
20    select @strlen=len(@str),@re= ' '
21    while @strlen> 0
22    begin
23      select top 1 @re=letter+@re,@strlen=@strlen-1
24      from @t a where chr <=substring(@str,@strlen,1)
25      order by chr desc
26      if @@rowcount=0
27      select @re=substring(@str,@strlen,1)+@re,@strlen=@strlen-1
28    end
29    return(@re)
30 end
31 GO

View Code

4.asp.net前台页面（需要添加2个引用：AjaxControlToolkit.dll，AutoCompleteExtra.dll）

 1 <%@ Page Language="C#" AutoEventWireup="true" CodeBehind="TextBoxAuto.aspx.cs" Inherits="WebApplication1.TextBoxAuto" %>
 2 
 3 <%@ Register Assembly="AutoCompleteExtra" Namespace="AutoCompleteExtra" TagPrefix="cc1" %>
 4 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
 5 <html xmlns="http://www.w3.org/1999/xhtml">
 6 <head runat="server">
 7     <title></title>
 8     <style type="text/css">
 9         .searchTextBox
10         {
11             border: 1px solid #e1e1e1;
12             border-collapse: separate;
13             border-spacing: 0;
14             padding: 2px 2px 2px 2px;
15             white-space: nowrap;
16             margin-left: 2px;
17             height: 28px;
18             line-height: 28px;
19             margin-right: 5px;
20             font-family: 微软雅黑,宋体;
21             font-size: 14px;
22         }
23     </style>
24 </head>
25 <body>
26     <form id="form1" runat="server">
27     <asp:ScriptManager ID="ScriptManager1" runat="server">
28     </asp:ScriptManager>
29     <asp:UpdatePanel ID="UpdatePanel1" runat="server">
30         <ContentTemplate>
31             <div>
32                 <div class="dd2">
33                请输入姓名: <asp:TextBox CssClass="searchTextBox" runat="server" ID="txtCompanyName" Style=" 280px;"></asp:TextBox>
34                     <cc1:AutoCompleteExtraExtender ID="AutoCompleteExtraExtender1" runat="server" ServiceMethod="GetCompanyNameList"
35                         TargetControlID="txtCompanyName" AsyncPostback="false" UseContextKey="True" AutoPostback="false"
36                         MinimumPrefixLength="1" CompletionInterval="10">
37                     </cc1:AutoCompleteExtraExtender>
38                 </div>
39             </div>
40         </ContentTemplate>
41     </asp:UpdatePanel>
42     </form>
43 </body>
44 </html>

View Code

5.后台页面

 1 using System;
 2 using System.Collections.Generic;
 3 using System.Linq;
 4 using System.Web;
 5 using System.Web.UI;
 6 using System.Web.UI.WebControls;
 7 using Oceansoft.Net.Bll;
 8 
 9 namespace WebApplication1
10 {
11     public partial class TextBoxAuto : System.Web.UI.Page
12     {
13         protected void Page_Load(object sender, EventArgs e)
14         {
15 
16         }
17 
18         [System.Web.Services.WebMethodAttribute(), System.Web.Script.Services.ScriptMethodAttribute()]
19         public static string[][] GetCompanyNameList(string prefixText, int count, string contextKey)
20         {
21             //获取自动完成的选项数据
22             List<string[]> list = new List<string[]>();
23             List<string> nameList = new List<string>();
24             List<string> idList = new List<string>();
25             CeshiManage ceshimanage = new CeshiManage();
26 
27             ceshimanage.GetTopUserName(count, prefixText.ToUpper(), out idList, out nameList);
28             for (int i = 0; i < nameList.Count; i++)
29             {
30                 string[] Respuesta = new string[2];
31                 Respuesta[0] = nameList[i];
32                 Respuesta[1] = idList[i];
33                 list.Add(Respuesta);
34             }
35             return list.ToArray();
36         }
37     }
38 }

View Code

6.后台页面用到的方法（管理类）

  1 using System;
  2 using System.Collections.Generic;
  3 using System.Linq;
  4 using System.Text;
  5 using System.Web.UI;
  6 using Oceansoft.Net.Bll;
  7 using SubSonic;
  8 using System.Transactions;
  9 
 10 
 11 using System.Data;
 12 using Oceansoft.Net.Dal;
 13 
 14 
 15 
 16 namespace Oceansoft.Net.Bll
 17 {
 18     /// <summary>
 19     /// :ceshi
 20     /// :jibp
 21     /// :2014-2-27 15:52:15
 22     ///</summary>
 23     public class CeshiManage
 24     {
 25 
 26         private SqlQuery m_sqlquery = Oceansoft.Net.Dal.DB.Select().From(Ceshi.Schema);
 27 
 28         /// <summary>
 29         /// Ceshi查询器
 30         /// </summary>
 31         public SqlQuery CeshiSelecter
 32         {
 33             get { return m_sqlquery; }
 34             set { m_sqlquery = value; }
 35         }
 36 
 37 
 38         /// <summary>
 39         /// 构造函数,设置查询器
 40         ///</summary>
 41         public CeshiManage()
 42         {
 43             m_sqlquery = m_sqlquery.Where("id").IsNotEqualTo("");
 44         }
 45 
 46 
 47         #region Ceshi管理
 48 
 49         /// <summary>
 50         /// 获取ceshi列表
 51         /// </summary>
 52         /// <returns></returns>
 53         public List<Ceshi> getCeshiList()
 54         {
 55 
 56             return CeshiSelecter.ExecuteTypedList<Ceshi>();
 57         }
 58 
 59 
 60         /// <summary>
 61         /// 获取ceshi列表,同时分页操作
 62         /// </summary>
 63         /// <returns></returns>
 64         public List<Ceshi> getCeshiList(int currentPage, int pageSize, out int RecordCount)
 65         {
 66             RecordCount = m_sqlquery.GetRecordCount();
 67             return CeshiSelecter
 68             .Paged(currentPage, pageSize)
 69             .ExecuteTypedList<Ceshi>();
 70         }
 71 
 72 
 73 
 74 
 75 
 76         /// <summary>
 77         /// 新增 ceshi
 78         /// </summary>
 79         /// <param name="HandleEntity"></param>
 80         /// <param name="sErr"></param>
 81         /// <returns></returns>
 82         public bool AddCeshi(Ceshi beAddMode, out string sErr)
 83         {
 84 
 85             sErr = "";
 86             bool bRet = true;
 87             try
 88             {
 89 
 90                 using (TransactionScope sc = new TransactionScope())
 91                 {
 92                     //此处写代码
 93                     //流水编号的生成
 94                     //GenerateNo No = new GenerateNo();
 95                     //No.TableName = "Ceshi"; //表名
 96                     //No.NoName = "XXX";   //流水号前字母
 97                     //No.ColName = "CC_Number";  //编号字段
 98                     //No.CreateTime = "CC_CreateTime";  //日期字段
 99                     //string BillNo = "";
100                     //Customer_Comp.CC_Number = No.AutoGenerateNo();
101                     beAddMode.IsNew = true;
102                     beAddMode.Save();
103                     //LogHelper.WriteLog(logType.新增 , logModule.Deptrelation,"ceshi新增成功("+beAddMode.GetPrimaryKeyValue().ToString()
104                     //+")!");
105                     //如果生成扩展类请使用add方法方法
106                     sc.Complete();
107                 }
108             }
109             catch (Exception ex)
110             {
111                 sErr = "ceshi新增不成功!";
112                 return false;
113             }
114 
115             sErr = "ceshi新增成功!";
116             return bRet;
117 
118 
119         }
120 
121 
122 
123         /// <summary>
124         /// 修改 ceshi
125         /// </summary>
126         /// <param name="HandleEntity"></param>
127         /// <param name="sErr"></param>
128         /// <returns></returns>
129         public bool UpdataCeshi(Ceshi beUpdataMode, out string sErr)
130         {
131 
132             sErr = "";
133             bool bRet = true;
134             try
135             {
136 
137                 using (TransactionScope sc = new TransactionScope())
138                 {
139 
140                     //如果生成扩展类请使用Update()方法方法
141                     beUpdataMode.IsNew = false;
142                     beUpdataMode.Save();
143                     //LogHelper.WriteLog(logType.修改 , logModule.Deptrelation,"ceshi修改成功("+beUpdataMode.GetPrimaryKeyValue().ToString()
144                     //+")!");
145 
146                     sc.Complete();
147                 }
148             }
149             catch (Exception ex)
150             {
151                 sErr = "ceshi修改不成功!";
152                 return false;
153             }
154 
155             sErr = "ceshi修改成功!";
156             return bRet;
157 
158         }
159 
160 
161 
162 
163         /// <summary>
164         /// 删除 ceshi
165         /// </summary>
166         /// <param name="HandleEntity"></param>
167         /// <param name="sErr"></param>
168         /// <returns></returns>
169         public bool DeleteCeshi(Ceshi beDeleteMode, out string sErr)
170         {
171             sErr = "";
172             bool bRet = true;
173             try
174             {
175 
176                 using (TransactionScope sc = new TransactionScope())
177                 {
178                     //如果生成扩展类请使用Delete()方法方法
179                     Ceshi.Delete(beDeleteMode.GetPrimaryKeyValue());
180                     //LogHelper.WriteLog(logType.删除 , logModule.Deptrelation,"ceshi删除成功("+beDeleteMode.GetPrimaryKeyValue().ToString()
181                     //+")!");
182                     sc.Complete();
183                 }
184             }
185             catch (Exception ex)
186             {
187                 sErr = "ceshi删除不成功!";
188                 return false;
189             }
190 
191             sErr = "ceshi删除成功!";
192             return bRet;
193 
194         }
195 
196 
197         /// <summary>
198         /// 删除 ceshi 列表
199         /// </summary>
200         /// <param name="HandleEntity"></param>
201         /// <param name="sErr"></param>
202         /// <returns></returns>
203         public bool DeleteCeshiList(List<Ceshi> lstCeshi, out string sErr)
204         {
205 
206 
207             sErr = "";
208             int ii = 0;
209             bool bRet = true;
210             try
211             {
212 
213                 using (TransactionScope sc = new TransactionScope())
214                 {
215                     //如果生成扩展类请使用Delete()方法方法
216                     foreach (Ceshi bedelmode in lstCeshi)
217                     {
218                         ii++;
219                         Ceshi.Delete(bedelmode.GetPrimaryKeyValue());
220 
221                         //LogHelper.WriteLog(logType.删除 , logModule.Deptrelation,"ceshi删除成功("+bedelmode.GetPrimaryKeyValue().ToString()
222                         //+")!");
223                     }
224                     sc.Complete();
225                 }
226             }
227             catch (Exception ex)
228             {
229                 sErr = "ceshi删除不成功!";
230                 return false;
231             }
232 
233             sErr = "共" + ii.ToString() + "条单据删除成功!";
234             return bRet;
235 
236 
237 
238 
239         }
240 
241 
242 
243         public  void GetTopUserName(int topCount, string name, out List<string> listId, out  List<string> listcname)
244         {
245             string sql = string.Format(@"Select id,cname from(Select ROW_NUMBER() over(order by cname)as ROWNUM," +
246                 "id,cname FROM [dbo].[Ceshi] where cname like '%" + name + "%' or  dbo.f_GetPy(cname) like '%" + name + "%') as ta where ta.ROWNUM <= " + topCount);
247             DataTable dt = new DataTable();
248             QueryCommand qc = new InlineQuery().GetCommand(sql);
249             dt = DataService.GetDataSet(qc).Tables[0];//将查询出来的数据集放到List中去（查询数据的方法，有很多，这边我用的是Subsonic类自带的查询方法）
250             listcname = new List<string>();
251             listId = new List<string>();
252             foreach (DataRow row in dt.Rows)
253             {
254 
255                 listId.Add(row[0].ToString());
256                 listcname.Add(row[1].ToString());
257 
258             }
259 
260         }
261 
262 
263         #endregion
264 
265 
266 
267 
268     }
269 }

View Code

7.webconfig配置

 1 <?xml version="1.0"?>
 2 
 3 <!--
 4   有关如何配置 ASP.NET 应用程序的详细信息，请访问
 5   http://go.microsoft.com/fwlink/?LinkId=169433
 6   -->
 7 
 8 <configuration>
 9   <configSections>
10     <section name="SubSonicService" type="SubSonic.SubSonicSection, SubSonic" requirePermission="false"/>
11   </configSections>
12   <connectionStrings>
13     <add name="DemoTo" connectionString="Data Source=172.17.118.197;Initial Catalog=DemoTo;User Id=sa;Password=password01!;" providerName="System.Data.SqlClient"/>
14   </connectionStrings>
15   <SubSonicService defaultProvider="DemoTo">
16     <providers>
17 
18       <add name="DemoTo" type="SubSonic.SqlDataProvider, SubSonic" connectionStringName="DemoTo" generatedNamespace="Oceansoft.Net" maxPoolSize="2000"/>
19 
20     </providers>
21   </SubSonicService>
22 
23   <system.web>
24     <compilation debug="true" targetFramework="4.0" />
25 
26     <authentication mode="Forms">
27       <forms loginUrl="~/Account/Login.aspx" timeout="2880" />
28     </authentication>
29 
30     <membership>
31       <providers>
32         <clear/>
33         <add name="AspNetSqlMembershipProvider" type="System.Web.Security.SqlMembershipProvider" connectionStringName="ApplicationServices"
34              enablePasswordRetrieval="false" enablePasswordReset="true" requiresQuestionAndAnswer="false" requiresUniqueEmail="false"
35              maxInvalidPasswordAttempts="5" minRequiredPasswordLength="6" minRequiredNonalphanumericCharacters="0" passwordAttemptWindow="10"
36              applicationName="/" />
37       </providers>
38     </membership>
39 
40     <profile>
41       <providers>
42         <clear/>
43         <add name="AspNetSqlProfileProvider" type="System.Web.Profile.SqlProfileProvider" connectionStringName="ApplicationServices" applicationName="/"/>
44       </providers>
45     </profile>
46 
47     <roleManager enabled="false">
48       <providers>
49         <clear/>
50         <add name="AspNetSqlRoleProvider" type="System.Web.Security.SqlRoleProvider" connectionStringName="ApplicationServices" applicationName="/" />
51         <add name="AspNetWindowsTokenRoleProvider" type="System.Web.Security.WindowsTokenRoleProvider" applicationName="/" />
52       </providers>
53     </roleManager>
54 
55   </system.web>
56 
57   <system.webServer>
58     <modules runAllManagedModulesForAllRequests="true"/>
59   </system.webServer>
60 </configuration>

View Code

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原文地址：https://www.cnblogs.com/jbps/p/jibp.html