WPF 绑定复杂对象答案

【问题标题】：WPF Binding Complex ObjectWPF 绑定复杂对象
【发布时间】：2016-03-10 19:17:14
【问题描述】：

我有一个实现INotifyPropertyChanged 的模型，如下所示。将名称和城市绑定到标签很容易。但我无法将玩家绑定到数据网格。有没有人有任何提示？（这都是只读信息。）

public class Team : INotifyPropertyChanged
{
    private string _name;
    private string _city;
    private List<Player> _players;

    public string Name
    {
        get { return _name; }
    }

    public string City
    {
        get { return _city; }
    }

    public List<Player> Players
    {
        get { return _players; }
    }

}
public class Player
{
    public int ID {get; set;}
    public string FirstName {get; set;}
    public string LastName {get; set;}
}

【问题讨论】：

请为您的DataGrid 显示您的 XAML 代码。你试过什么？
你不能编译这个，我编辑了你的代码，看看我的答案

标签： c# wpf data-binding datagrid

【解决方案1】：

谁知道我以为我在做什么。但它现在正在工作。这是ItemSource：

ItemsSource="{Binding Path=Players}"

【讨论】：

【解决方案2】：

更改您的 Team 类，您必须像这样实现 INotifypropertyChanged：

  public class Team : INotifyPropertyChanged
    {
        private string _name;
        private string _city;
        private List<Player> _players;

        public string Name
        {
            get { return _name; }
        }

        public string City
        {
            get { return _city; }
        }

        public List<Player> Players
        {
            get { return _players; }
            set { 
                _players =value;
                RaisePropertyChanged("Players");
            }
        }


        #region INotifyPropertyChanged

        internal void RaisePropertyChanged(string prop)
        {
            if (PropertyChanged != null) { PropertyChanged(this, new PropertyChangedEventArgs(prop)); }
        }
        public event PropertyChangedEventHandler PropertyChanged;

        #endregion

    }
    public class Player
    {
        public int ID { get; set; }
        public string FirstName { get; set; }
        public string LastName { get; set; }
    }

通过 Team 类的实例设置 MainWindow 的 DataContext，如下所示：

   public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
            DataContext = new Team
            {
                Players = new List<Player>()
                { 
                    new Player{ ID=1, FirstName="Mohammed", LastName="Ali" },
                    new Player{ ID=2, FirstName="Paul", LastName="Oshain" },
                }
            };
        }
    }

最后在您的 XAML（您的 MainWindow）中进行良好的绑定；像这样：

<Window x:Class="WpfApplication4.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>
        <DataGrid ItemsSource="{Binding Players}" AutoGenerateColumns="False" >
            <DataGrid.Columns>
                <DataGridTextColumn Header="Id"  Binding="{Binding ID}"/>
                <DataGridTextColumn Header="First Name"  Binding="{Binding FirstName}"/>
                <DataGridTextColumn Header="Last Name" Binding="{Binding LastName}" />
          </DataGrid.Columns>
        </DataGrid>
    </Grid>
</Window>

【讨论】：