var fnClick = function() {
alert(“Clicked!”);
}
var oDiv = document.getElementById(“div1”);
oDiv.attachEvent(“onclick”, fnClick);
oDiv.detachEvent(“onclick”, fnClick);

function getEventTarget(e) {
   e = e || window.event;
   return e.target || e.srcElement;
}

function editCell(e) {
   var target = getEventTarget(e);
   if(target.tagName.toLowerCase() === 'td') {
     // DO SOMETHING WITH THE CELL
   }
}

$("p").click(function(event){
     event.stopPropagation();
     // do something
})

$(this).after("Another paragraph!");
return false;  });

alert(null == undefined);   // true
alert(undefined == null);   // true
alert(true == 1);   // true
alert(false == 0);  // true
alert(true == 2);   // false
var obj = {};
alert(10 == obj);   // false

var a = "100";
var b = 100; 
alert(a == b);      // true
alert(a === b);     // false

alert(a != b);      // false
alert(a !== b);     // true

function Person(name, age){
     this.Name = name;
     this.Age = age;
}
var p = new Person("Sunny D.D", 25);

var json = {"Name":"Sunny D.D", "Age":25};

function showName(person){
     alert(person.Name);
}

if (!Object.prototype.toJSONString) {
    Object.prototype.toJSONString = function (filter) {
        return JSON.stringify(this, filter);
    };
    Object.prototype.parseJSON = function (filter) {
        return JSON.parse(this, filter);
    };
}

var jsonStr = p.toJSONString();

if (!Object.prototype.toJSONString) {
    Object.prototype.toJSONString = function (filter) {
        return JSON.stringify(this, filter);
    };
    Object.prototype.parseJSON = function (filter) {
        return JSON.parse(this + "", filter);
    };
}

using (NorthwindDataContext  db = new NorthwindDataContext())
{
        JObject json = new JObject( //创建JSON对象
        db.Categories.Select(
            c =>
            new JProperty( //创建JSON属性
                c.CategoryName, //属性名称（在这里是产品类别名称）
                new JArray( //属性的值（在这里是该类别下的所有产品名称）
                    c.Products.Select(
                        p =>
                        p.ProductName
                    )
                )
            )
        )
    );
    ltrJson.Text = json.ToString();

JObject o = JObject.Parse(json);

using (ProductDataContext db = new ProductDataContext())
{
    JObject json = new JObject( //创建JSON对象
        db.Categories.Select(
            c =>
            new JProperty( //创建JSON属性
                c.CategoryName, //属性名称（在这里是产品类别名称）
                new JArray( //属性的值（在这里是该类别下的所有产品名称）
                    c.Products.Select(
                        p =>
                        p.ProductName
                    )
                )
            )
        )
    );
 
    foreach (JProperty i in json.Children()) //遍历JSON对象的所有属性
    {
        Console.WriteLine("类别为{0}的产品列表", i.Name); //输出属性的名称
        JArray arr = (JArray)i.Value; //获取属性的值（在这里是该类别下的所有产品名称）
 
        foreach (JValue j in arr) //遍历产品名称集合
        {
            Console.WriteLine(j.Value); //输出产品名称
        }
        Console.WriteLine("-----------------------------------------------------");
    }

using (ProductDataContext db = new ProductDataContext())
{
    JObject json = new JObject( //创建JSON对象
        db.Categories.Select(
            c =>
            new JProperty( //创建JSON属性
                c.CategoryName, //属性名称（在这里是产品类别名称）
                new JArray( //属性的值（在这里是该类别下的所有产品名称）
                    c.Products.Select(
                        p =>
                        p.ProductName
                    )
                )
            )
        )
    );
    var q =
        json.Children<jproperty>() //获取JSON对象的所有属性
        .Where(j => j.Name.StartsWith("C")) //结果只包含属性名称以"C"开头的
        .OrderBy(j => ((JArray)j.Value).Count) //以属性的值中包含的元素个数排序
        .Select(j => j.Name); //查询结果仅包含属性名称
    foreach (string i in q) //遍历并输出属性名称
    {
        Console.WriteLine(i);
    }
}
</jproperty>

string xml = @"< ?xml version=""1.0"" standalone=""no""?>
                <root>
                  <person id=""1"">
                  <name>Alan</name>
                  <url>http://www.google.com</url>
                  </person>
                  <person id=""2"">
                  <name>Louis</name>
                  <url>http://www.yahoo.com</url>
                  </person>
                </root>";
XmlDocument xdoc = new XmlDocument();
xdoc.LoadXml(xml);
string jsonText = JsonConvert.SerializeXmlNode(xdoc);
Console.WriteLine(jsonText);

string json = @"{
              ""?xml"": {
                ""@version"": ""1.0"",
                ""@standalone"": ""no""
              },
              ""root"": {
                ""person"": [
                  {
                    ""@id"": ""1"",
                    ""name"": ""Alan"",
                    ""url"": ""http://www.google.com""
                  },
                  {
                    ""@id"": ""2"",
                    ""name"": ""Louis"",
                    ""url"": ""http://www.yahoo.com""
                  }
                ]
              }
            }";
 
XmlDocument doc = (XmlDocument)JsonConvert.DeserializeXmlNode(json);

< %@ WebHandler Language="C#" Class="GetProductsByCategoryIDHandler"  %> 
using System;
using System.Web;
using System.Linq;
using Newtonsoft.Json.Linq; 
 
public class GetProductsByCategoryIDHandler : IHttpHandler {
    public void ProcessRequest (HttpContext context) {
        HttpResponse response = context.Response;
        HttpRequest request = context.Request;
        int categoryID = Int32.Parse(request["categoryID"]); //传递过来的类别ID
        JObject json = null;
 
        using (NorthwindDataContext db=new NorthwindDataContext())
        {
            string[] productNames =
                db.Categories //访问Northwind数据库的产品类别表
                .Single(c => c.CategoryID == categoryID) //根据ID获取唯一实例
                .Products //获取此类别的所有产品
                .Select(p => p.ProductName) //结果只包含产品名称
                .ToArray(); //转换为数组
            //实例化JObject对象，同时为其加入一个名为AllProducts的属性
            json = new JObject(
                new JProperty("AllProducts", new JArray(productNames))
            );
        }
        response.ContentType = "text/plain";
        response.Write(json.ToString());
    } 
    public bool IsReusable {
        get {
            return false;
        }
    }
}

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title>JsonAjax Demo</title>
    <script type="text/javascript" src="CommonFiles/JavaScript/jQuery/jquery-1.4.js"></script>
    <script type="text/javascript" src="CommonFiles/JavaScript/json.js"></script>
    <script type="text/javascript">
        var commandLocation = "Command/GetProductsByCategoryIDHandler.ashx";
        function getProductsByStandard(categoryID) {
            $.ajax({
                url: commandLocation,
                dataType: "json",
                data: "categoryID=" + categoryID,
                success: function(json) {
                    show.innerHTML = json.AllProducts;
                }
            })
        }
    </script>
</head>
<body>
    <div>
        <span id="show"></span>
    </div>
</body>
</html>

public static string RangerUsControl(string controlName)
{
      StringBuilder build = new StringBuilder();
      HtmlTextWriter htmlWriter = new HtmlTextWriter(new StringWriter(build));
      UserControl uc = new UserControl();
      Control ctrl=uc.LoadControl(controlName+".ascx");//加载用户定义控件
      htmlWriter.Flush();
      string result;
      try
      {
           ctrl.RenderControl(htmlWriter);
      }
      catch { }
      finally
      {
           htmlWriter.Flush();
           result=build.ToString();
      }
      return result;//返回控件的HTML代码
}