传递对象通过服务器端asp.net code Silverlight的 [英] Pass objects to silverlight through server side asp.net code

问题描述

是否有可能通过asp.net服务器端code传递对象（序列化类或其他方式），以一个Silverlight控件？

Is it possible to pass objects (serializable classes or other ways) to a Silverlight control through asp.net server side code?

推荐答案

好了，它会涉及到序列化。记住 - 你的Silverlight客户端与服务器断开连接，就像浏览器与服务器断开连接

Well, it's going to involve serialization. Remember -- your Silverlight client is disconnected from the server, just like the browser is disconnected from the server.

有一个伟大的文章<一个href=\"http://www.silverlightshow.net/items/JSON-serialization-and-deserialization-in-Silverlight.aspx\"相对=nofollow>此处的JSON序列化，并从Silverlight的。以下是文章摘要：

There is a great article here on JSON serialization to and from Silverlight. Here is the summary from the article:

让我们先从一个简短的介绍的JSON是什么。它代表的Ĵ AVA ** S ** CRIPT 0 bject的 N 浮选，并作为XML的替代。下面是一个JSON文件一个简单的例子：

Let’s start with a short introduction of what JSON is. It stands for Java**S**cript Object Notation and is used as an alternative of the XML. Here is a simple example for a JSON file:

{姓：马丁，姓氏：Mihaylov} 单个对象

和

<$c$c>[{\"FirstName\":\"Martin\",\"LastName\":\"Mihaylov\"},{\"FirstName\":\"Emil\",\"LastName\":\"Stoychev\"}]对多个对象。

它看起来像一个数组。根据该序列化它可能看起来非常复杂的对象。

It looks like an array. Depending on the object that is serialized it could look really complicated.

为了要与序列化，我们DataContractJsonSerializer必须设置[DataContract]属性。将由序列所使用的型属性必须具有[数据成员]的属性。注意：要使用这些属性的引用System.Runtime.Serialization添加;

In order to be serializable with DataContractJsonSerializer we have to set a [DataContract] attribute. The properites that will be used by the serialization must have [DataMember] attributes. Note: To use these attributes add a reference to System.Runtime.Serialization;

[DataContract]
public class Person
{

    [DataMember]
    public string FirstName
    {
        get;
        set;
    }

    [DataMember]
    public string LastName
    {
        get;
        set;
    }

}

现在我们已经准备好开始与序列化。让我们创建一个需要我们的对象作为参数，并返回一个JSON格式的字符串的方法：

Now we are ready to begin with the serialization. Let's create a method that takes our object as an argument and returns a string in JSON format:

public static string SerializeToJsonString(object objectToSerialize)
{
    using (MemoryStream ms = new MemoryStream())
    {
        DataContractJsonSerializer serializer =
        new DataContractJsonSerializer(objectToSerialize.GetType());
        serializer.WriteObject(ms, objectToSerialize);
        ms.Position = 0;


        using (StreamReader reader = new StreamReader(ms))
        {
            return reader.ReadToEnd();
        }

    }

}

反序列化

public static T Deserialize<T>(string jsonString)
{

    using (MemoryStream ms = new MemoryStream(Encoding.Unicode.GetBytes(jsonString)))
    {

        DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(T));


        return (T)serializer.ReadObject(ms);

    }

}

下面是这个样子，从客户端code：

Here is what this looks like from client code:

List<Person> persons = Deserialize<List<Person>>( jsonString );

这篇关于传递对象通过服务器端asp.net code Silverlight的的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！