使用 WPF 和 XAML 创建滚动的图像网格
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Creating a scrolling grid of images using WPF and XAML
提问by Osborne Cox
I currently have the following XAML code but when I run my app, the ScrollBars appear but I am unable to scroll through the list of images (scrollbar doesn't work).
我目前有以下 XAML 代码，但是当我运行我的应用程序时，会出现滚动条，但我无法滚动浏览图像列表（滚动条不起作用）。
<Window x:Class="WPFMediaManager.MoviePanel"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MoviePanel" Height="1024" Width="1473.254" WindowStartupLocation="CenterScreen">
<Window.Resources>
<DataTemplate x:Key="ItemTemplate">
<WrapPanel>
<Image Width="200" Height="300" Stretch="Fill" Source="{Binding}"/>
<TextBlock Text="{Binding}"/>
</WrapPanel>
</DataTemplate>
</Window.Resources>
<Grid x:Name="movie_grid">
<ListView Grid.Row="4" Name ="MovieListView" ItemTemplate="{StaticResource ItemTemplate}" ItemsSource="{Binding Path = movie_posters_list}">
<ListView.ItemsPanel>
<ItemsPanelTemplate>
<UniformGrid Columns="5" />
</ItemsPanelTemplate>
</ListView.ItemsPanel>
</ListView>
<TextBlock Name="SampleTextBlock" Text="{Binding Path=movie_names}" DataContext="{StaticResource ItemTemplate}"/>
</Grid>
</Window>
I'm not sure what is causing this issue and whether I'm using the appropriate containers to house the images.
我不确定是什么导致了这个问题，以及我是否使用适当的容器来存放图像。
My goal is something like the following layout:
我的目标类似于以下布局：
C# Code behind:
背后的 C# 代码：
namespace WPFMediaManager {
/// <summary>
/// Interaction logic for MoviePanel.xaml
/// </summary>
public partial class MoviePanel : Window {
public MoviePanel() {
InitializeComponent();
}
List<ImageSource> movie_posters_list = new List<ImageSource>();
List<String> movie_names = new List<String>();
String regex_pattern = @"\([\w ]+).(?:jpg|png)$";
public void LoadImages() {
//Image current_image;
String movie_poster_path = @"C:\Users\Vax\Desktop\movie_posters";
List<String> filenames = new List<String>(System.IO.Directory.EnumerateFiles(movie_poster_path, "*.jpg"));
foreach (String filename in filenames) {
this.movie_posters_list.Add(new BitmapImage(new Uri(filename)));
Console.WriteLine("filename " + filename);
Match regex_match = Regex.Match(filename.Trim(), regex_pattern);
String matched_movie_name = regex_match.Groups[1].Value;
this.movie_names.Add(matched_movie_name);
Console.WriteLine("Movie Name: " + matched_movie_name);
}
MovieListView.ItemsSource = movie_posters_list;
}
}
}
Edit: I tried the method outlined by @XAML Lover but I don't get the images appearing at all anymore. I'm not sure whether this is a data binding issue.
编辑：我尝试了@XAML Lover 概述的方法，但我根本看不到图像了。我不确定这是否是数据绑定问题。
采纳答案by Jawahar
The TextBlock is hiding the whole ListView, which is blocking the user input. Look at the modified XAML,
TextBlock 隐藏了整个 ListView，从而阻止了用户输入。看看修改后的 XAML，
<Grid x:Name="movie_grid">
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition />
</Grid.RowDefinitions>
<ListView Grid.Row="1"
Name="MovieListView"
ItemTemplate="{StaticResource ItemTemplate}"
ItemsSource="{Binding Path = movie_posters_list}">
<ListView.ItemsPanel>
<ItemsPanelTemplate>
<UniformGrid Columns="5" />
</ItemsPanelTemplate>
</ListView.ItemsPanel>
</ListView>
<TextBlock Name="SampleTextBlock"
Text="{Binding Path=movie_names}"
DataContext="{StaticResource ItemTemplate}" />
</Grid>
回答by Bilal Amjad
Put your xaml of displaying the pictures in a grid then put that grid inside scrollviewer control and set the desired orientation and alignments and you will get the solution.
将显示图片的 xaml 放在网格中，然后将该网格放入滚动查看器控件并设置所需的方向和对齐方式，您将获得解决方案。
<ScrollViewer orientation="" VerticleAllignment="" HorizontalAllignment="">
<Grid>
Place your xaml here...
</Grid>
</ScrollViewer>
