WPF-将列表绑定到列表视图

问题描述

我正在创建一个wpf应用程序并从我的USB网络摄像头捕获图像.我试过的是将所有捕获的图像存储在List中，并在Listview

I'm creating a wpf application and capturing images from my usb webcam. What I have tried is store all captured images in a List and show them in a Listview

public List<BitmapImage> listOfCapturedImages = new List<BitmapImage>();

private void addNewImageButton_Click(object sender, RoutedEventArgs e)
        {
            CameraWindow cw = new CameraWindow(this);
            cw.newlyCapturedImage += (BitmapImage newImage) =>
            {
                listOfCapturedImages.Add(newImage);
                newlyAddedImage.Source = newImage;
            };
            cw.Show();
        }

XAML:

<ListView ItemsSource="{Binding listOfCapturedImages}" Height="345" Margin="577,10,10,0" VerticalAlignment="Top">
            <ListView.View>
                <GridView>
                    <GridView.ColumnHeaderContainerStyle>
                        <Style TargetType="GridViewColumnHeader">
                            <Setter Property="Visibility" Value="Collapsed"/>
                        </Style>
                    </GridView.ColumnHeaderContainerStyle>
                    <GridViewColumn x:Name="previewImagesColumn">
                        <GridViewColumn.CellTemplate>
                            <DataTemplate>
                                <StackPanel Orientation="Vertical">
                                <Button x:Name="firstImageOflistViewButton" Content="{Binding listOfCapturedImages}" Height="50">
                                    <Button.Template>
                                        <ControlTemplate TargetType="Button">
                                            <ContentPresenter/>
                                        </ControlTemplate>
                                    </Button.Template>
                                </Button>
                                </StackPanel>
                            </DataTemplate>
                        </GridViewColumn.CellTemplate>
                    </GridViewColumn>
                </GridView>
            </ListView.View>

有人可以帮我吗，我想念的是什么?

Could someone help me please, what I'm missing?

推荐答案

非常感谢，我已经解决了您的帮助问题.我只想与可能与我有相同问题的其他人共享我的工作代码.这是工作代码:

Thanks a lot guys, I have fixed my problem with your helps. I want to share my working code just for someone else who may have the same problem with me. Here is the working code:

public ObservableCollection<BitmapImage> listOfCapturedImages { get; } =
   new ObservableCollection<BitmapImage>();

private void addNewImageButton_Click(object sender, RoutedEventArgs e)
        {
            CameraWindow cw = new CameraWindow(this);
            cw.newlyCapturedImage += (BitmapImage newImage) =>
            {
                listOfCapturedImages.Add(newImage);
                newlyAddedImage.Source = newImage;
            };
            cw.Show();
        }

我还添加了this.DataContext = this;.

public Test(Window window)
        {
            InitializeComponent();
            this.DataContext = this;
        }

最后是 XAML:

<ListView ItemsSource="{Binding listOfCapturedImages}" Height="345" Margin="577,10,10,0" VerticalAlignment="Top">
        <ListView.ItemsPanel>
            <ItemsPanelTemplate>
                <UniformGrid Columns="1"/>
            </ItemsPanelTemplate>
        </ListView.ItemsPanel>
        <ListView.ItemTemplate>
            <DataTemplate>
                <Image Source="{Binding}"/>
            </DataTemplate>
        </ListView.ItemTemplate>
    </ListView>

这篇关于WPF-将列表绑定到列表视图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！