发布于 2016-06-11 06:08:26 | 161 次阅读 | 评论: 0 | 来源: 网友投递

这里有新鲜出炉的精品教程,程序狗速度看过来!

ASP.NET

ASP.NET 是.NET FrameWork的一部分,是一项微软公司的技术,是一种使嵌入网页中的脚本可由因特网服务器执行的服务器端脚本技术,它可以在通过HTTP请求文档时再在Web服务器上动态创建它们。 指 Active Server Pages(动态服务器页面) ,运行于 IIS(Internet Information Server 服务,是Windows开发的Web服务器)之中的程序 。


本文展示了如何利用AjaxPro与服务器交互,并且还展示了在Js中可以直接调用服务器返回的集合和直接调用服务器上class的属性
 
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Test.aspx.cs" Inherits="Test" %> 

<!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>AjaxPro实现二级联动</title> 
</head> 
<body> 
<form id="form1" runat="server"> 
<div> 
<table width="200" border="0" align="center" cellpadding="3" cellspacing="1" bordercolor="#FFFFFF" style="border-collapse: collapse"> 
<tr align="center"> 
<td height="20" colspan="2"> 
<strong>AjaxPro实现二级联动</strong> </td> 
</tr> 
<tr class="tdbg" > 
<td width="30%"> 
省份</td> 
<td width="70%" align="left"> 
<asp:DropDownList ID="ddlStateList" runat="server" DataTextField="StateName" DataValueField="StateId"> 
</asp:DropDownList></td> 
</tr> 
<tr class="tdbg" > 
<td><strong>城市</strong></td> 
<td align="left"> 
<asp:DropDownList ID="ddlCityList" runat="server"> 
</asp:DropDownList></td> 
</tr> 
</table> 

</div> 
<script language="javascript" type="text/javascript" defer="defer"> 
function ShowCity(id) 
{ 
var res=Test.GetCityList(parseInt(id)).value; 
var ddl=document.getElementById("<%=ddlCityList.UniqueID %>"); 
ddl.length=0; 
if(res) 
{ 
//res是服务器返回的一个List<City>集合 
for(var i=0;i<res.length;i++) 
{ 
ddl.options.add(new Option(res[i].CityName,res[i].CityId)); 
//从上面可以看出可以直接调用List<City>集合中的元素和它们的属性 
} 
} 
} 
</script> 
</form> 
</body> 
</html> 
<DIV class=cnblogs_Highlighter><PRE class=brush:csharp>using System; 
using System.Data; 
using System.Configuration; 
using System.Collections; 
using System.Collections.Generic; 
using System.Web; 
using System.Web.Security; 
using System.Web.UI; 
using System.Web.UI.WebControls; 
using System.Web.UI.WebControls.WebParts; 
using System.Web.UI.HtmlControls; 


/** 
* 写作说明:本文展示了如何利用AjaxPro与服务器交互,并且还展示了在Js中可以直接调用服务器返回的集合和直接调用服务器上class的属性 
* 作者:周公 
* 日期:2008-1-1 
* 首发地址:http://blog.csdn.net/zhoufoxcn/ 
**/ 
public partial class Test : System.Web.UI.Page 
{ 
protected void Page_Load(object sender, EventArgs e) 
{ 
if (!Page.IsPostBack) 
{ 
List<State> stateList = new List<State>(10); 
stateList.Add(new State(0, "选择城市"));//默认选项 
stateList.Add(new State(1,"北京")); 
stateList.Add(new State(2, "天津")); 
stateList.Add(new State(3, "上海")); 
stateList.Add(new State(4, "湖北")); 
stateList.Add(new State(5, "湖南")); 
stateList.Add(new State(6, "山西")); 
ddlStateList.DataSource = stateList; 
ddlStateList.DataBind(); 
ddlStateList.Attributes["onchange"] = "ShowCity(this.options[selectedIndex].value)"; 
} 
AjaxPro.Utility.RegisterTypeForAjax(typeof(Test));//注册 
} 
[AjaxPro.AjaxMethod] 
public List<City> GetCityList(int stateId) 
{ 
//呵呵,都是我熟悉的城市或者区 
List<City> cityList = new List<City>(12); 
cityList.Add(new City(11, "海淀区", 1)); 
cityList.Add(new City(12, "朝阳区", 1)); 
cityList.Add(new City(13, "大港区", 2)); 
cityList.Add(new City(14, "南开区", 2)); 
cityList.Add(new City(15, "普陀区", 3)); 
cityList.Add(new City(16, "黄浦区", 3)); 
cityList.Add(new City(17, "黄冈市", 4)); 
cityList.Add(new City(18, "荆州市", 4)); 
cityList.Add(new City(19, "长沙市", 5)); 
cityList.Add(new City(20, "岳阳市", 5)); 
cityList.Add(new City(21, "太原市", 6)); 
cityList.Add(new City(22, "大同市", 6)); 
List<City> tempList = new List<City>(); 
for (int i = 0; i < cityList.Count; i++) 
{ 
if (cityList[i].StateId == stateId) 
{ 
tempList.Add(cityList[i]); 
} 
} 
return tempList; 
} 
} 
/// <summary> 
/// 省份信息 
/// </summary> 
public class State 
{ 
private int stateId; 
private string stateName; 
/// <summary> 
/// 省份名 
/// </summary> 
public string StateName 
{ 
get { return stateName; } 
set { stateName = value; } 
} 

/// <summary> 
/// 省份编号 
/// </summary> 
public int StateId 
{ 
get { return stateId; } 
set { stateId = value; } 
} 
public State(int stateId, string stateName) 
{ 
this.stateId = stateId; 
this.stateName = stateName; 
} 
} 
/// <summary> 
/// 城市信息 
/// </summary> 
public class City 
{ 
private int cityId; 
private int stateId; 
private string cityName; 
/// <summary> 
/// 城市名称 
/// </summary> 
public string CityName 
{ 
get { return cityName; } 
set { cityName = value; } 
} 

/// <summary> 
/// 城市所在省份编号 
/// </summary> 
public int StateId 
{ 
get { return stateId; } 
set { stateId = value; } 
} 

/// <summary> 
/// 城市编号 
/// </summary> 
public int CityId 
{ 
get { return cityId; } 
set { cityId = value; } 
} 

public City(int cityId, string cityName, int stateId) 
{ 
this.cityId = cityId; 
this.cityName = cityName; 
this.stateId = stateId; 
} 

} 


</PRE> 
</DIV> 


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