.Net 文本框实现内容提示的实例代码(仿Google、Baidu)

时间：2021-05-28

1.Demo下载：

文本框实现内容提示(仿Google、Baidu).rar

2.创建数据库、表（我用的sqlserver2008数据库）

复制代码 代码如下:
CREATE TABLE Ceshi
(
id VARCHAR(50) PRIMARY KEY NOT NULL,
cname VARCHAR(30)
)
GO
INSERT INTO Ceshi
SELECT NEWID(),'jack1' UNION
SELECT NEWID(),'jack2' UNION
SELECT NEWID(),'jack3' UNION
SELECT NEWID(),'jack4' UNION
SELECT NEWID(),'jack5' UNION
SELECT NEWID(),'peter1' UNION
SELECT NEWID(),'peter2' UNION
SELECT NEWID(),'peter3' UNION
SELECT NEWID(),'peter4' UNION
SELECT NEWID(),'peter5'
go

3.创建自定义函数
复制代码 代码如下:
create function [dbo].[f_GetPy](@str nvarchar(4000))
returns nvarchar(4000)
as
begin
declare @strlen int,@re nvarchar(4000)
declare @t table(chr nchar(1) collate Chinese_PRC_CI_AS,letter nchar(1))
insert into @t(chr,letter)
select '吖 ', 'A ' union all select '八 ', 'B ' union all
select '嚓 ', 'C ' union all select '咑 ', 'D ' union all
select '妸 ', 'E ' union all select '发 ', 'F ' union all
select '旮 ', 'G ' union all select '铪 ', 'H ' union all
select '丌 ', 'J ' union all select '咔 ', 'K ' union all
select '垃 ', 'L ' union all select '嘸 ', 'M ' union all
select '拏 ', 'N ' union all select '噢 ', 'O ' union all
select '妑 ', 'P ' union all select '七 ', 'Q ' union all
select '呥 ', 'R ' union all select '仨 ', 'S ' union all
select '他 ', 'T ' union all select '屲 ', 'W ' union all
select '夕 ', 'X ' union all select '丫 ', 'Y ' union all
select '帀 ', 'Z '
select @strlen=len(@str),@re= ' '
while @strlen> 0
begin
select top 1 @re=letter+@re,@strlen=@strlen-1
from @t a where chr <=substring(@str,@strlen,1)
order by chr desc
if @@rowcount=0
select @re=substring(@str,@strlen,1)+@re,@strlen=@strlen-1
end
return(@re)
end
GO

4.asp.net前台页面（需要添加2个引用：AjaxControlToolkit.dll，AutoCompleteExtra.dll）
复制代码 代码如下:
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="TextBoxAuto.aspx.cs" Inherits="WebApplication1.TextBoxAuto" %>

<%@ Register Assembly="AutoCompleteExtra" Namespace="AutoCompleteExtra" TagPrefix="cc1" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://pilation debug="true" targetFramework="4.0" />

<authentication mode="Forms">
<forms loginUrl="~/Account/Login.aspx" timeout="2880" />
</authentication>

<membership>
<providers>
<clear/>
<add name="AspNetSqlMembershipProvider" type="System.Web.Security.SqlMembershipProvider" connectionStringName="ApplicationServices"
enablePasswordRetrieval="false" enablePasswordReset="true" requiresQuestionAndAnswer="false" requiresUniqueEmail="false"
maxInvalidPasswordAttempts="5" minRequiredPasswordLength="6" minRequiredNonalphanumericCharacters="0" passwordAttemptWindow="10"
applicationName="/" />
</providers>
</membership>

<profile>
<providers>
<clear/>
<add name="AspNetSqlProfileProvider" type="System.Web.Profile.SqlProfileProvider" connectionStringName="ApplicationServices" applicationName="/"/>
</providers>
</profile>

<roleManager enabled="false">
<providers>
<clear/>
<add name="AspNetSqlRoleProvider" type="System.Web.Security.SqlRoleProvider" connectionStringName="ApplicationServices" applicationName="/" />
<add name="AspNetWindowsTokenRoleProvider" type="System.Web.Security.WindowsTokenRoleProvider" applicationName="/" />
</providers>
</roleManager>

</system.web>

<system.webServer>
<modules runAllManagedModulesForAllRequests="true"/>
</system.webServer>
</configuration>

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