Question

您好我在listview中显示图片时遇到问题。我有一系列网址，我必须从中下载图片，但出于测试目的，我尝试使用本地硬盘驱动器中的相同图片填充每一行。我可以绑定数据，但到目前为止我唯一可以打印到图片列的是对象的名称而不是图片本身（DisplayData.Image）这是我的xaml和c＃代码：

XAML

   <Window x:Class="TestIT.MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="clr-namespace:TestIT"
    Title="MainWindow" Height="510.9" Width="723">
<Window.Resources>
    <local:InterfaceBinding x:Key="adjust" />
</Window.Resources>
<Grid>
    <Grid HorizontalAlignment="Stretch" Height="100" VerticalAlignment="Stretch" Width="517" Margin="98,10,100,370" >
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="*"/>
            <ColumnDefinition Width="*"/>
            <ColumnDefinition Width="*"/>
            <ColumnDefinition Width="*"/>
            <ColumnDefinition Width="*"/>
            <ColumnDefinition Width="*"/>


        </Grid.ColumnDefinitions>
        <Grid.RowDefinitions>
            <RowDefinition Height="100" />
        </Grid.RowDefinitions>

        <Label x:Name="labelNewsTop" Content="Top News" Grid.Row="0" HorizontalAlignment="Center" Margin="0,0,0,0" VerticalAlignment="Center" Grid.Column="0" MouseLeftButtonUp="labelNewsTop_MouseLeftButtonUp" />
        <Label x:Name="labelNewsBusiness" Content="Business" Grid.Row="0" HorizontalAlignment="Center" Margin="0,0,0,0" VerticalAlignment="Center" Grid.Column="1" />
        <Label x:Name="labelNewsTechnology" Content="Technology" Grid.Row="0" HorizontalAlignment="Center" Margin="0,0,0,0" VerticalAlignment="Center" Grid.Column="2" />
        <Label x:Name="labelNewsEntertainment" Content="Entertainment" Grid.Row="0" HorizontalAlignment="Center" Margin="0,0,0,0" VerticalAlignment="Center" Grid.Column="3" />
        <Label x:Name="labelNewsScience" Content="Sport" Grid.Row="0" HorizontalAlignment="Center" Margin="0,0,0,0" VerticalAlignment="Center" Grid.Column="4" />
        <Label x:Name="labelNewsHealth" Content="Health" Grid.Row="0" HorizontalAlignment="Center" Margin="0,0,0,0" VerticalAlignment="Center" Grid.Column="5" />
        <Image x:Name="iamgetest" Grid.ColumnSpan="2" HorizontalAlignment="Left" Height="100" Margin="24,68,0,-68" VerticalAlignment="Top" Width="100" Grid.Column="4"/>

    </Grid>
    <ListView x:Name="testView" HorizontalAlignment="Left" Height="304" Margin="0,105,0,0" VerticalAlignment="Top" Width="715">
        <ListView.View>
            <GridView>
                <GridViewColumn Header="Name" DisplayMemberBinding="{Binding Path=Name}"/>
                <GridViewColumn Header="Value" DisplayMemberBinding="{Binding Path=Value}"/>
                <GridViewColumn Header="Lele" >
                    <GridViewColumn.CellTemplate>
                        <DataTemplate>
                            <Image  Height="50" Width="50" Stretch="Fill" Source="{Binding Path=Image}"></Image>

                        </DataTemplate>
                    </GridViewColumn.CellTemplate>
                </GridViewColumn>
            </GridView>
        </ListView.View>
    </ListView>

</Grid>
</Window>

C＃

        GNews gnews = new GNews();
        List<NewsModel> bla = gnews.getTopNews();


        for (int i = 0; i < bla.Count - 1; i++)
        {


            DisplayData data = new DisplayData();
            data.Name = bla[i].title;
            data.Value = bla[i].url;
            ImageSource mySource = new BitmapImage(new Uri("D:\\New folder\\New folder\\other\\Wall\\010.jpg"));
            data.Image = new Image();
            data.Image.Source = mySource;

            this.testView.Items.Add(data);

        }
    }
}

public class DisplayData
{
    public string Name { get; set; }
    public string Value { get; set; }

    public Image Image { get; set; }

}

Answer 1

你应该绑定Uri而不是图像。

public class DisplayData
{
   public string Name { get; set; }
   public string Value { get; set; }

   public Uri Image { get; set; }
}

你的循环看起来像

for (int i = 0; i < bla.Count - 1; i++)
    {


        DisplayData data = new DisplayData();
        data.Name = bla[i].title;
        data.Value = bla[i].url;

        data.Image = new Uri("D:\\New folder\\New folder\\other\\Wall\\010.jpg");


        this.testView.Items.Add(data);

    }

无法在列表视图中显示图片

1 个答案: