wpf 如何让WPF listview动态显示图片和标签
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/35786002/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
How to make WPF listview display Images and Labels dynamically
提问by Luke Dinkler
I'm having quite a difficult time trying to create the UI for a WPF Window. I'm trying to display (dynamically) a bunch of Movie Posters with the name of the movie directly under the image. ItemsSource is assigned to a list of Images via foreachiteration. The Image files themselves may be different sizes, but as shown below I will be setting a uniform size.
我在尝试为 WPF 窗口创建 UI 时遇到了相当大的困难。我正在尝试（动态地）显示一堆带有电影名称的电影海报，直接在图像下方。ItemsSource 通过foreach迭代分配给图像列表。图像文件本身可能有不同的大小，但如下所示，我将设置一个统一的大小。
Basically, my goal is for it to look something like this:
基本上，我的目标是让它看起来像这样：
So far, My code only displays a window with one large horizontal row(?) with the image in the center and no label. Here's my XAML code:
到目前为止，我的代码只显示一个带有一个大水平行（？）的窗口，图像在中心并且没有标签。这是我的 XAML 代码：
<Window x:Name="TVWindow" x:Class="PACS_Pre_Alpha.TV"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="TV" Height="746" Width="1000" ResizeMode="NoResize">
<Grid x:Name="TVGrid">
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition />
</Grid.RowDefinitions>
<ListView x:Name="TvBox" HorizontalAlignment="Left" Height="648" VerticalAlignment="Top" Width="994" Grid.Row="5" Grid.Column="5">
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<UniformGrid Columns="5" />
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
<ListView.ItemTemplate>
<DataTemplate>
<StackPanel Orientation="Vertical" VerticalAlignment="Stretch">
<Image Source="{Binding ImageData}" HorizontalAlignment="Center" VerticalAlignment="Top" />
<TextBlock Text="{Binding Title}" HorizontalAlignment="Center" VerticalAlignment="Bottom" />
</StackPanel>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
</Grid>
My movies are added with this C# code:
我的电影是用这个 C# 代码添加的：
foreach (string tvf in ContentFiles)
{
string ContentTitle = System.IO.Path.GetFileNameWithoutExtension(tvf);
MovieData cnt = new MovieData();
cnt.ImageData = LoadImage(ActualImage);
cnt.Title = ContentTitle;
ContentDataList.Add(cnt);
}
TvBox.ItemsSource = ContentDataList;
Edit: I have changed my XAML Markup as @MarkFeldman suggested, but now nothing appears.
Edit: It currently looks like this:
编辑：我已经按照@MarkFeldman 的建议更改了我的 XAML 标记，但现在什么也没有出现。编辑：它目前看起来像这样：
回答by Mark Feldman
You're going to provide more info about the data itself i.e. what's it's format, how are you assigning it to the ItemsSource etc. For one thing you're not setting the ItemTemplate, so you might want to look at that first. For example if you have a class containing your movie data that looks like this:
您将提供有关数据本身的更多信息，即它的格式是什么，您如何将其分配给 ItemsSource 等。一方面，您没有设置 ItemTemplate，因此您可能想先看看它。例如，如果您有一个包含电影数据的类，如下所示：
public class MovieData
{
private string _Title;
public string Title
{
get { return this._Title; }
set { this._Title = value; }
}
private BitmapImage _ImageData;
public BitmapImage ImageData
{
get { return this._ImageData; }
set { this._ImageData = value; }
}
}
Then you would display it with something like this:
然后你会用这样的东西来显示它：
<ListView.ItemTemplate>
<DataTemplate>
<StackPanel Orientation="Vertical" VerticalAlignment="Stretch">
<Image Source="{Binding ImageData}" HorizontalAlignment="Center" VerticalAlignment="Top"/>
<TextBlock Text="{Binding Title}" HorizontalAlignment="Center" VerticalAlignment="Bottom"/>
</StackPanel>
</DataTemplate>
</ListView.ItemTemplate>
UPDATE:
更新：
Sorry, I thought it was obvious that you still needed to use a UniformGrid. Here is what your full XAML should look like:
抱歉，我认为很明显您仍然需要使用 UniformGrid。您的完整 XAML 应该如下所示：
<ListView x:Name="TvBox" HorizontalAlignment="Stretch" VerticalAlignment="Top">
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<UniformGrid Columns="5" HorizontalAlignment="Stretch"/>
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
<ListView.ItemTemplate>
<DataTemplate>
<StackPanel Orientation="Vertical" VerticalAlignment="Stretch" HorizontalAlignment="Stretch">
<Image Source="{Binding ImageData}" HorizontalAlignment="Stretch" VerticalAlignment="Top" Stretch="UniformToFill" />
<TextBlock Text="{Binding Title}" HorizontalAlignment="Stretch" VerticalAlignment="Bottom" />
</StackPanel>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
I've already provided you with the MovieData class, so here's what your Window code should look like:
我已经为您提供了 MovieData 类，因此您的 Window 代码应该如下所示：
public partial class Window1 : Window
{
public Window1()
{
InitializeComponent();
this.TvBox.ItemsSource = new MovieData[]
{
new MovieData{Title="Movie 1", ImageData=LoadImage("image.jpg")},
new MovieData{Title="Movie 2", ImageData=LoadImage("image.jpg")},
new MovieData{Title="Movie 3", ImageData=LoadImage("image.jpg")},
new MovieData{Title="Movie 4", ImageData=LoadImage("image.jpg")},
new MovieData{Title="Movie 5", ImageData=LoadImage("image.jpg")},
new MovieData{Title="Movie 6", ImageData=LoadImage("image.jpg")}
};
}
// for this code image needs to be a project resource
private BitmapImage LoadImage(string filename)
{
return new BitmapImage(new Uri("pack://application:,,,/" + filename));
}
}
In this example I'm assuming there is an image in your project called "image.jpg" which has been set to build action "Resource", if your images come from elsewhere then you'll need to modify the LoadImage code accordingly.
在本例中，我假设您的项目中有一个名为“image.jpg”的图像，它已设置为构建操作“Resource”，如果您的图像来自其他地方，那么您需要相应地修改 LoadImage 代码。
回答by Mark Wardell
I have done something very similar with UniformGrid I see you did not set the Rows of your UniformGrid. I did this In my Game App. Good approach but difficult to get right. Set an ItemTemplate. And try an ItemsControl Outer Object instead of listview
我做了一些与 UniformGrid 非常相似的事情，我看到你没有设置 UniformGrid 的行。我在我的游戏应用程序中做到了这一点。好的方法，但很难做到正确。设置一个 ItemTemplate。并尝试使用 ItemsControl 外部对象而不是列表视图
<ItemsControl IsEnabled="{Binding GameBoardEnabled}"
x:Name="_board"
ItemsSource ="{Binding Board}"
ItemTemplate= "{DynamicResource GamePieceTemplate}" >
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<!--<StackPanel/>-->
<UniformGrid
Columns="{Binding Columns}"
Rows ="{Binding Rows}" />
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
</ItemsControl>
