CODE:扩展方法ToJSON() and ParseJSON()

AJAX编程经常需要Object<=>JSON之间转换，写了二个扩展方法：

public static string ToJSON(this object obj)

public static T ParseJSON<T>(this string str)

使用例子:

protected void Page_Load(object sender, EventArgs e)

{

Person p = new Person

{

Name = "wuchang",

Email = "wuchangx@qq.com",

LastActive = DateTime.Now,

Arr = new string[] { "arr1", "arr2" },

Lst = new List<string>( new string[] { "lst1", "lst2" } )

};

string json = p.ToJSON();

this.TextBox1.Text = json;

Person pp = json.ParseJSON<Person>();

this.TextBox2.Text = pp.ToJSON();

}