WPF 数据绑定 使用Code First with Database

USE MyShop
GO

CREATE TABLE [dbo].[Categories]
(
  [CategoryId] [INT] NOT NULL IDENTITY ,
  [Name] [NVARCHAR](MAX) ,
  CONSTRAINT [PK_dbo.Categories] PRIMARY KEY ( [CategoryId] )
) 
 
CREATE TABLE [dbo].[Products]
(
  [ProductId] [INT] NOT NULL
                    IDENTITY ,
  [Name] [NVARCHAR](MAX) ,
  [CategoryId] [INT] NOT NULL ,
  CONSTRAINT [PK_dbo.Products] PRIMARY KEY ( [ProductId] )
) 
 
CREATE INDEX [IX_CategoryId] ON [dbo].[Products]([CategoryId]) 
 
ALTER TABLE [dbo].[Products] 
ADD CONSTRAINT [FK_dbo.Products_dbo.Categories_CategoryId] 
FOREIGN KEY ([CategoryId]) REFERENCES [dbo].[Categories] ([CategoryId]) 
ON DELETE CASCADE
GO

INSERT INTO dbo.Categories ( Name ) VALUES( N‘水果‘ )
INSERT INTO dbo.Categories ( Name ) VALUES( N‘肉类‘ )
GO

INSERT INTO dbo.Products ( Name, CategoryId ) VALUES  ( N‘苹果‘, 1)
INSERT INTO dbo.Products ( Name, CategoryId ) VALUES  ( N‘菠萝‘, 1)
INSERT INTO dbo.Products ( Name, CategoryId ) VALUES  ( N‘猪肉‘, 2)
INSERT INTO dbo.Products ( Name, CategoryId ) VALUES  ( N‘牛肉‘, 2)
INSERT INTO dbo.Products ( Name, CategoryId ) VALUES  ( N‘人肉‘, 2)
GO

namespace WPFwithEFSample
{
    using System;
    using System.Collections.Generic;
    using System.ComponentModel.DataAnnotations;
    using System.ComponentModel.DataAnnotations.Schema;
    using System.Data.Entity.Spatial;

    public partial class Category
    {
        public Category()
        {
            Products = new HashSet<Product>();
        }

        public int CategoryId { get; set; }

        public string Name { get; set; }

        public virtual ICollection<Product> Products { get; set; }
    }
}

namespace WPFwithEFSample
{
    using System;
    using System.Collections.Generic;
    using System.ComponentModel.DataAnnotations;
    using System.ComponentModel.DataAnnotations.Schema;
    using System.Data.Entity.Spatial;

    public partial class Product
    {
        public int ProductId { get; set; }

        public string Name { get; set; }

        public int CategoryId { get; set; }

        public virtual Category Category { get; set; }
    }
}

namespace WPFwithEFSample
{
    using System;
    using System.Data.Entity;
    using System.ComponentModel.DataAnnotations.Schema;
    using System.Linq;

    public partial class MyShopContext : DbContext
    {
        public MyShopContext()
            : base("name=MyShopContext")
        {
        }

        public virtual DbSet<Category> Categories { get; set; }
        public virtual DbSet<Product> Products { get; set; }

        protected override void OnModelCreating(DbModelBuilder modelBuilder)
        {
        }
    }
}

<Window
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
        xmlns:local="clr-namespace:WPFwithEFSample" mc:Ignorable="d" x:Class="WPFwithEFSample.MainWindow"
        Title="MainWindow" Height="350" Width="525" Loaded="Window_Loaded">
    <Window.Resources>
        <CollectionViewSource x:Key="categoryViewSource" d:DesignSource="{d:DesignInstance {x:Type local:Category}, CreateList=True}"/>
    </Window.Resources>
    <Grid DataContext="{StaticResource categoryViewSource}">

        <DataGrid x:Name="categoryDataGrid" RowDetailsVisibilityMode="VisibleWhenSelected" Margin="10,10,51,195" ItemsSource="{Binding}" EnableRowVirtualization="True" AutoGenerateColumns="False">
            <DataGrid.Columns>
                <DataGridTextColumn x:Name="categoryIdColumn" Width="SizeToHeader" Header="Category Id" Binding="{Binding CategoryId}"/>
                <DataGridTextColumn x:Name="nameColumn" Width="SizeToHeader" Header="Name" Binding="{Binding Name}"/>
            </DataGrid.Columns>
        </DataGrid>

    </Grid>
</Window>

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.Navigation;
using System.Windows.Shapes;

namespace WPFwithEFSample
{
    /// <summary>
    /// MainWindow.xaml 的交互逻辑
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
        }

        private void Window_Loaded(object sender, RoutedEventArgs e)
        {

            System.Windows.Data.CollectionViewSource categoryViewSource = ((System.Windows.Data.CollectionViewSource)(this.FindResource("categoryViewSource")));
            // 通过设置 CollectionViewSource.Source 属性加载数据: 
            // categoryViewSource.Source = [一般数据源]
        }
    }
}