如何在XAML中将List作为ItemSource绑定到ListView? [英] How can I bind a List as ItemSource to ListView in XAML?

问题描述

我正在学习WPF，并且希望有一个类似于LinkedList的集合，可以在其中添加和删除字符串.我希望有一个ListView可以通过数据绑定来监听该集合.如何在XAML中将简单的列表集合绑定到ListView?

I'm learning WPF and would like to have a collection similar to a LinkedList, to where I can add and remove strings. And I want to have a ListView that listen to that collection with databinding. How can I do bind a simple list collection to a ListView in XAML?

我的想法(不起作用)是这样的:

My idea (not working) is something like this:

<Window x:Class="TestApp.MainWindow"
      xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
      xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
      Title="MainWindow" Height="350" Width="525">
    <Window.Resources>
        <LinkedList x:Key="myList"></LinkedList> //Wrong
    <Window.Resources>
    <Grid>
    <ListView Height="100" HorizontalAlignment="Left" Margin="88,134,0,0" 
      Name="listView1" VerticalAlignment="Top" Width="120" 
      ItemsSource="{Binding Source={StaticResource myList}}"/> //Wrong
    </Grid>
</Window>

我所有的代码(更新的版本，不起作用):

<Window x:Class="TestApp.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="350" Width="525">
    <Grid>
        <TextBox Height="23" HorizontalAlignment="Left" Margin="12,12,0,0" 
          Name="textBox1" VerticalAlignment="Top" Width="120" />
        <Button Content="Button" Height="23" HorizontalAlignment="Right" 
          Margin="0,12,290,0" Name="button1" VerticalAlignment="Top" Width="75" 
          Click="button1_Click" />
        <ListView Height="100" HorizontalAlignment="Left" Margin="88,134,0,0" 
          Name="listView1" VerticalAlignment="Top" Width="120" 
          ItemsSource="{Binding myList}"/>
    </Grid>
</Window>

C#代码:

namespace TestApp
{
    public partial class MainWindow : Window
    {
        ObservableCollection<string> myList = new ObservableCollection<string>();
        public MainWindow()
        {
            InitializeComponent();
            myList.Add("first string");
        }

        private void button1_Click(object sender, RoutedEventArgs e)
        {
            myList.Add(textBox1.Text);
            textBox1.Text = myList.Count+"st";
        }
    }
}

推荐答案

您只能将数据绑定到公共属性，并且需要设置DataContext.

You can only databind to public properties and you need to set the DataContext.

public partial class MainWindow : Window
{
    public ObservableCollection<string> myList { get; private set; }

    public MainWindow()
    {
        InitializeComponent();

        myList = new ObservableCollection<string>();
        myList.Add("first string");
        DataContext = this;
    }

    private void button1_Click(object sender, RoutedEventArgs e)
    {
        myList.Add(textBox1.Text);
        textBox1.Text = myList.Count + "st";
    }
}

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