SilverLight中数据与通信之WCF

SilverLight中数据与通信之WCF

1.       新建一个实体类接口文件IBlog.cs

    // 注意: 如果更改此处的接口名称 "IBlog"，也必须更新 Web.config 中对 "IBlog" 的引用。

    [serviceContract]

    public interface IBlog

    {

        [OperationContract]

        Post[] GetPosts();

    }

    [DataContract]

    public class Post

    {

        public Post(int id,String title,String author)

        {

            this.Id = id;

            this.title = title;

            this.Author = author;

        }

        [DataMember]

        public int Id { get; set; }

        [DataMember]

        public String title { get; set; }

        [DataMember]

        public String Author { get; set; }

    }

2. 新建一个实体类文件Blog.svc

// 注意: 如果更改此处的类名 "Blog"，也必须更新 Web.config 中对 "Blog" 的引用。

//注意：web.config中的binding默认的是wshttpBinding,需修改为basichttpBinding,

//<endpoint address="" binding="basichttpBinding" contract="Binglang.SilverlightDemo9.Web.IBlog">

    public class Blog : IBlog

    {

        public Post[] GetPosts()

        {

            List<Post> posts = new List<Post>()

                {

                    new Post(1,"一步一步学Silverlight 2系列（13）：数据与通信之Webrequest","TerryLee"),

                    new Post(2,"一步一步学Silverlight 2系列（12）：数据与通信之WebClient",

                    new Post(3,"一步一步学Silverlight 2系列（11）：数据绑定",

                    new Post(4,"一步一步学Silverlight 2系列（10）：使用用户控件",

                    new Post(5,"一步一步学Silverlight 2系列（9）：使用控件模板",

                    new Post(6,"一步一步学Silverlight 2系列（8）：使用样式封装控件观感","TerryLee")

                };

            return posts.ToArray();

        }

}

2.       调用

前台代码：

<@H_772_597@ListBox x:Name="Posts" Grid.Row="1" Margin="40 10 10 10">

@H_772_597@            <@H_772_597@ListBox.ItemTemplate>

@H_772_597@                <@H_772_597@DataTemplate>

@H_772_597@                    <@H_772_597@StackPanel Orientation="Horizontal">

@H_772_597@                        <@H_772_597@TextBlock Text="{@H_772_597@Binding Id}" Height="40" Foreground="Red"></@H_772_597@TextBlock>

@H_772_597@                        <@H_772_597@TextBlock Text="{@H_772_597@Binding title}" Height="40"></@H_772_597@TextBlock>

@H_772_597@                        <@H_772_597@TextBlock Text="{@H_772_597@Binding Author}" Height="40" Foreground="Orange"></@H_772_597@TextBlock>

@H_772_597@                    </@H_772_597@StackPanel>

@H_772_597@                </@H_772_597@DataTemplate>

@H_772_597@            </@H_772_597@ListBox.ItemTemplate>

@H_772_597@        </@H_772_597@ListBox>

后台代码：

Loaded+=new RoutedEventHandler(MainPage_Loaded);

   //实现调用wcf，并进行数据的绑定。采用异步模式。过程与调用webservice通信差不多，只不过需要指定Bingding等信息。

        private void MainPage_Loaded(object sender,RoutedEventArgs E)

        {

            BasichttpBinding binding = new BasichttpBinding();

            EndpointAddress endPoint = new EndpointAddress("http://localhost:52424/Blog.svc");

            BlogClient client = new BlogClient(binding,endPoint);

            client.GetPostsCompleted += new EventHandler<GetPostsCompletedEventArgs>(client_GetPostsCompleted);

            client.GetPostsAsync();

        }

        void client_GetPostsCompleted(object sender,GetPostsCompletedEventArgs E)

        {

            if (e.Error == null)

            {

                Posts.Itemssource = e.Result;

            }

}