使用数据绑定、数据模板和可观察集合的 C# WPF 应用程序
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【中文标题】使用数据绑定、数据模板和可观察集合的 C# WPF 应用程序【英文标题】：C# WPF application using data binding, data templates and observable collection 【发布时间】：2014-10-06 20:07:43 【问题描述】：我正在使用数据绑定、数据模板和可观察集合在 C# WPF 中制作程序。我的应用程序基于来自http://msdn.microsoft.com/en-us/library/vstudio/ms771319(v=vs.90).aspx 的数据绑定演示。出于某种原因，我无法让我的程序显示任何来自绑定的数据。调试告诉我，我的 Records 类集合有效，但在这一行：
records_collection_db = (CollectionViewSource)(this.Resources["records_collection_db"]);
我的“records_collection_db”变量为空，而它应该保存一些数据。我怀疑我在 xaml 行中的 CollectionViewSource 设置不正确，但我真的不知道如何修复它。这是我在 WPF 中的第一个程序，所以我在这方面没有太多经验。目前，我的代码与示例代码之间唯一可见的区别是我的初始窗口是......在演示中它是一个
代码（或至少是它的缩短版）：
记录等级
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Collections.ObjectModel;
using System.ComponentModel;
namespace WpfApplication1
public class Record : INotifyPropertyChanged
private int Lp;
private string group;
public event PropertyChangedEventHandler PropertyChanged;
public int _Lp
get return this.Lp;
set this.Lp = value; OnPropertyChanged("_Lp");
public string _group
get return this.group;
set this.group = value; OnPropertyChanged("_group");
public Record(int Lp, string group)
this.Lp = Lp;
this.group = group;
protected void OnPropertyChanged(string property)
if (PropertyChanged != null)
PropertyChanged(this, new PropertyChangedEventArgs(property));
初始窗口
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq;
using System.Text;
using System.Data;
using System.Xml;
using System.Configuration;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
namespace WpfApplication1
public partial class MainWindow : Window
public MainWindow()
InitializeComponent();
var newWindow1 = new Audyt_window();
newWindow1.Show();
<Window x:Class="WpfApplication1.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:src="clr-namespace:WpfApplication1"
xmlns:System="clr-namespace:System;assembly=Mscorlib"
Title="MainWindow" Height="350" Width="525"
WindowStartupLocation="CenterScreen"
>
<Window.Resources>
<Style x:Key="text_style" TargetType="TextBlock">
<Setter Property="Foreground" Value="#333333" />
</Style>
</Window.Resources>
<Grid>
<Button Content="Start" HorizontalAlignment="Left" Margin="36,36,0,0" VerticalAlignment="Top" Width="178" Height="93" Click="Button_Click"/>
<Button Content="Zamknij" HorizontalAlignment="Left" Margin="202,223,0,0" VerticalAlignment="Top" Width="75" Click="Button_Click_1"/>
<Button Content="Rekordy" HorizontalAlignment="Left" Margin="318,56,0,0" VerticalAlignment="Top" Width="108" Height="52" Click="Button_Click_2" />
<Button Content="Dodaj" HorizontalAlignment="Left" Margin="351,157,0,0" VerticalAlignment="Top" Width="75" Click="Button_Click_3"/>
</Grid>
</Window>
操作窗口
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;
using System.Data;
using System.Data.SqlClient;
using System.Diagnostics;
using System.ComponentModel;
namespace WpfApplication1
public partial class Audyt_window : Window
CollectionViewSource records_collection;
private ObservableCollection<Record> records = new ObservableCollection<Record>();
public ObservableCollection<Record> Records
get return this.records;
set this.records = value;
public Audyt_window()
load_temp_data();
InitializeComponent();
records_collection = (CollectionViewSource)(this.Resources["records_collection"]);
private void load_temp_data()
Record rek1 = new Record(601, "Gr1", "Pro1", "Pyt1", 600001, "Kat1", false, false);
Record rek2 = new Record(602, "Gr2", "Pro2", "Pyt2", 600002, "Kat2", false, false);
Record rek3 = new Record(603, "Gr3", "Pro3", "Pyt3", 600003, "Kat3", false, false);
this.Records.Add(rek1);
this.Records.Add(rek2);
this.Records.Add(rek3);
<Window x:Class="WpfApplication1.Audyt_window"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="Audyt"
xmlns:src="clr-namespace:WpfApplication1"
ResizeMode="NoResize"
SizeToContent="WidthAndHeight"
WindowStartupLocation="CenterScreen"
>
<Window.Resources>
<CollectionViewSource Source="Binding Source=x:Static Application.Current, Path=Records" x:Key="records_collection" />
<Style x:Key="text_style" TargetType="TextBlock">
<Setter Property="Foreground" Value="#333333" />
</Style>
<DataTemplate x:Key="Records_Template" DataType="x:Type src:Record">
<Border BorderThickness="2" BorderBrush="Navy" Padding="7" Name="Record_List_Border" Margin="3" Width="345">
<Grid>
<Grid.RowDefinitions>
<RowDefinition/>
<RowDefinition/>
<RowDefinition/>
<RowDefinition/>
<RowDefinition/>
<RowDefinition/>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="20"/>
<ColumnDefinition Width="30"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<TextBlock Background="Aqua" Grid.Row="0" Grid.Column="0"
Name="textblock_Lp"
Style="StaticResource text_style"
Text="Lp: "
>
</TextBlock>
<TextBlock Background="Azure" Grid.Row="0" Grid.Column="1"
Name="datablock_Lp"
Style="StaticResource text_style"
Text="Binding Path=_Lp"
>
</TextBlock>
<TextBlock Background="Aqua" Grid.Row="0" Grid.Column="2"
Name="datablock_group"
Style="StaticResource text_style"
Text="Binding Path=_group"
>
</TextBlock>
</Grid>
</Border>
</DataTemplate>
</Window.Resources>
<Border Padding="10">
<Grid>
<ListBox Name="Hits_View_List" HorizontalAlignment="Left" VerticalAlignment="Top"
Height="525" Width="400" Margin="420,0,0,0"
BorderThickness="2" BorderBrush="DimGray"
ItemsSource="Binding Source=StaticResource records_collection"
>
</ListBox>
</Grid>
</Border>
</Window>
【问题讨论】：
应该有records_collection = (CollectionViewSource)(this.Resources["records_collection"]);在我的帖子中。 【参考方案1】：在您的Audyt_window 中，您将CollectionViewSource 的绑定源设置为x:Static Application.Current，但Records ObservableCollection 在您的Audyt_window 中声明
变化：
<CollectionViewSource Source="Binding Source=x:Static Application.Current, Path=Records" x:Key="records_collection" />
到
<CollectionViewSource Source="Binding RelativeSource=RelativeSource FindAncestor, AncestorType=Window, Path=Records" x:Key="records_collection" />
我认为它应该可以工作。
【讨论】：
谢谢！这就是修复它的原因！【参考方案2】：你命名你的 collectionviewsource
x:Key="records_collection"
而您正在搜索无法匹配的records_collection_db...
records_collection_db = (CollectionViewSource)(this.Resources["records_collection_db"]);
更改密钥或将字符串更改为正确的名称
【讨论】：
感谢您的快速响应。不幸的是，这只是我写这篇文章时的拼写错误，而不是真正的问题；/ 但失败出现在文本和Operational window的代码中以上是关于使用数据绑定、数据模板和可观察集合的 C# WPF 应用程序的主要内容，如果未能解决你的问题，请参考以下文章
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