Response.Write("<script type=‘text/javascript‘ language=‘javascript‘ >alert(‘用户名不能为空！请输入！‘)</script>");
---------------------------------------------------------------
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html
xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
<script
type="text/javascript"
language="javascript">
function
showCustomer()
{
alert("ddd")
var str =
document.getElementById("txtvalue").value;
if (str == "")
{
return;
}
var
xmlhttp;
if
(window.XMLHttpRequest) {// code for IE7+, Firefox, Chrome, Opera,
Safari
xmlhttp = new
XMLHttpRequest();
}
else {//
code for IE6,
IE5
xmlhttp = new
ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange = function ()
{
if (xmlhttp.readyState == 4 && xmlhttp.status == 200)
{
document.getElementById("txtHint").innerHTML =
xmlhttp.responseText;
}
}
xmlhttp.open("GET", "Conn.aspx?name="+str,
true);
xmlhttp.send();
}
function add()
{
var
names =
document.getElementById("names").value;
var Valuses =
document.getElementById("Valuses").value;
if (names == "")
{
return;
}
if
(Valuses == "")
{
return;
}
var
xmlhttp;
if (window.XMLHttpRequest)
{
xmlhttp=new
XMLHttpRequest();
}
else{
xmlhttp=new
ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange = function ()
{
if (xmlhttp.readyState == 4 && xmlhttp.status == 200)
{
document.getElementById("txtHint").innerHTML =
xmlhttp.responseText;
}
}
xmlhttp.open("POST", "addweb.aspx",
true);
xmlhttp.setRequestHeader("Content-type",
"application/x-www-form-urlencoded");
xmlhttp.send("names=‘" + names + "‘&Valuses=‘" + Valuses +
"‘");
}
</script>
</head>
<body>
<input
type="button" id="btncoon" value="连接" onclick="showCustomer()" /><br
/>
<input type="text" id="txtvalue"
/>
<input type="button" id="Button1" value="查询"
onclick="showCustomer()" />
<br
/>
<input type="text" id="names" /><input
type="text" id="Valuses" />
<input type="button"
id="btnadd" value="添加" onclick="add()" />
<div
id="txtHint">
</div>
</body>
</html>
------------------------------------------------------------
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Conn.aspx.cs"
Inherits="WebApplication1.Conn" %>
<%@ Import Namespace="System.Data"
%>
<%@ Import Namespace="System.Data.SqlClient" %>
<!DOCTYPE
html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head
runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<%
string strconn = "Data
Source=PC-201001081513;Initial Catalog=WebFirst;Integrated
Security=True";
SqlConnection conn
= new SqlConnection(strconn);
SqlCommand cmd = new
SqlCommand();
if
(conn.State ==
ConnectionState.Closed)
{
conn.Open();
}
string ad =
Request["name"];
string sql = "select Name,Valuses,ParentId from DaoHang where name=‘"+ad
+"‘";
cmd.CommandText
= sql;
cmd.Connection
= conn;
//
System.Data.DataSet ds = new
System.Data.DataSet();
//
System.Data.SqlClient.SqlDataAdapter sda = new
System.Data.SqlClient.SqlDataAdapter(cmd);
// sda.Fill(ds);
// if
(ds.Tables[0].Rows.Count >
0)
//{
//
}
SqlDataReader ar =
cmd.ExecuteReader();
while (ar.Read())
{
Response.Write(ar.GetSqlString(0)+"</br>");
}
%>
</div>
</form>
</body>
</html>