Question

我正在Windows Phone 7中构建我的第一个应用程序。我需要显示来自Web服务的数据以及图像。我能够显示数据但无法显示图像。

我的xaml代码是：

 <Grid x:Name="ContentPanel" Grid.Row="1" Margin="12,0,12,0">


        <ListBox Name="listBox1">
            <ListBox.ItemTemplate>
                <DataTemplate>
                    <Button>
                        <Button.Content>
                            <ScrollViewer HorizontalScrollBarVisibility="Auto" Height="80" Width="400">
                                <!--<ScrollViewer Height="80">-->
                                <StackPanel Orientation="Horizontal" Margin="0,0,0,0">
                                    <StackPanel Orientation="Vertical" Height="80">
                                        <TextBlock Text="{Binding Path=News_Title}" TextWrapping="Wrap" ></TextBlock>
                                        <TextBlock Text="{Binding Path=News_Description}" TextWrapping="Wrap"></TextBlock>
                                        <TextBlock Text="{Binding Path=Date_Start}" TextWrapping="Wrap"></TextBlock>
                                        <Image Source="{Binding Path=Image_Path}" />
                                    </StackPanel>
                                </StackPanel>
                            </ScrollViewer>
                        </Button.Content>
                    </Button>
                </DataTemplate>
            </ListBox.ItemTemplate>
        </ListBox>

    </Grid>

.cs代码是：

 public class Newss
    {
        public string News_Title { get; set; }
        public string News_Description { get; set; }
        public string Date_Start { get; set; }

    }

   public News()
    {
        InitializeComponent();

        KejriwalService.aapSoapClient client = new KejriwalService.aapSoapClient();
        client.getarvindNewsCompleted += new EventHandler<KejriwalService.getarvindNewsCompletedEventArgs>(client_getarvindNewsCompleted);
        client.getarvindNewsAsync();
    }

    void client_getarvindNewsCompleted(object sender, KejriwalService.getarvindNewsCompletedEventArgs e)
    {
        string result = e.Result.ToString();
        List<Newss> listData = new List<Newss>();
        XDocument doc = XDocument.Parse(result);

       foreach (var location in doc.Descendants("UserDetails"))

       {
            Newss data = new Newss();
            data.News_Title = location.Element("News_Title").Value;
            data.Date_Start = location.Element("Date_Start").Value;
            listData.Add(data);
        }

        listBox1.ItemsSource = listData;

    }
}

Xml String：

<NewDataSet>
  <UserDetails>
    <id>11</id>
    <News_Title>Disciplinary Action against Vinod Binny</News_Title>
    <News_Description>The Aam Aadmi Party formed a disciplinary committee, on 19-Jan-2013, headed by Pankaj Gupta to look into the matter of Vinod Kumar Binny. The other members of the committee included Ashish Talwar, Illyas Azmi, Yogendra Yadav and Gopal Rai.

This disciplinary committee has decided to expel Vinod Kumar Binny and terminate his primary membership from the party, for publicly making false statements against the party and its leadership, thereby bringing disrepute to the party. A letter to the same end has been issued to Vinod Kumar Binny.</News_Description>
    <Date_Start>2014-01-29</Date_Start>
    <image_path>news.png</image_path>

任何人都可以帮我显示每个字段的图像。

图片路径是http url

http://political-leader.vzons.com/ArvindKejriwal/images/uploaded/news.png

Answer 1

如果我猜对了你的Image_Path是一个http网址。所以你需要将BitmapImage绑定为ImageSource。这可以帮到你。

 public class Newss
        {
            public string News_Title { get; set; }
            public string News_Description { get; set; }
            public string Date_Start { get; set; }
            **//Edits**
            public string image_path {get;set}
            public BitmapImage ImageBind{get;set;}
        }
     foreach (var location in doc.Descendants("UserDetails"))
           {
                Newss data = new Newss();
                data.News_Title = location.Element("News_Title").Value;
                data.Date_Start = location.Element("Date_Start").Value;
                **//Edits**
                data.image_path = location.Element("Image_Path").Value;
                data.ImageBind = new BitmapImage(new Uri( @"http://political-leader.vzons.com/ArvindKejriwal/images/uploaded/"+data.image_path, UriKind.Absolute)
                listData.Add(data);
            }

**Your xaml changes**

    <Image Source="{Binding ImageBind }" />

如何从Web服务显示图像

1 个答案: