<Window x:Class="DataGridPractice.MainWindow"

        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:DataGridPractice"

        mc:Ignorable="d"

        Title="MainWindow" Height="450" Width="800">

    <Grid Margin="0,0,0,214" Loaded="Grid_Loaded">

        <Grid.Resources>

            <DataTemplate x:Key="DataGridTemplateA">

                <DataGrid Name="DataGrid2"

                          HeadersVisibility="None"

                          CanUserAddRows="False" CanUserDeleteRows="False"

                          CanUserResizeColumns="False" CanUserResizeRows="False"

                          CanUserReorderColumns="False" CanUserSortColumns="False"

                          AutoGenerateColumns="False" HorizontalAlignment="Left"

                          >

                    <DataGrid.Columns>

                        <DataGridTextColumn DisplayIndex="0" Binding="{Binding name, Mode=TwoWay}"/>

                    </DataGrid.Columns>

                </DataGrid>

            </DataTemplate>

        </Grid.Resources>

        <DataGrid Name="DataGrid1"

                  CanUserAddRows="False" CanUserDeleteRows="False"

                  CanUserResizeColumns="False" CanUserResizeRows="False"

                  CanUserReorderColumns="False" CanUserSortColumns="False"

                  AutoGenerateColumns="False"  HorizontalAlignment="Left"

                  VerticalContentAlignment="Center">

            <DataGrid.Columns>

                <DataGridTextColumn DisplayIndex="0" Binding="{Binding id, Mode=TwoWay}" />

                <DataGridTextColumn DisplayIndex="1" Binding="{Binding name, Mode=TwoWay}"/>

                <DataGridTextColumn DisplayIndex="2" Binding="{Binding age, Mode=TwoWay}"/>

                <DataGridTextColumn DisplayIndex="3" Binding="{Binding TotalCount, Mode=TwoWay}"/>

                <DataGridTemplateColumn DisplayIndex="4" CellTemplate="{StaticResource DataGridTemplateA}" IsReadOnly="True" Header="2"/>

            </DataGrid.Columns>

        </DataGrid>

        <TextBox HorizontalAlignment="Left" Height="38" Margin="117,310,0,-143" TextWrapping="Wrap" Text="TextBox" VerticalAlignment="Top" Width="154" LostFocus="TextBox_LostFocus"/>

    </Grid>

</Window>

using System;

using System.Collections.Generic;

using System.Collections.ObjectModel;

using System.ComponentModel;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Windows;

using System.Windows.Controls;

using System.Windows.Controls.Primitives;

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;

using System.Windows.Threading;

namespace DataGridPractice

{

    /// <summary>

    /// Interaction logic for MainWindow.xaml

    /// </summary>

    public partial class MainWindow : Window

    {

        public MainWindow()

        {

            InitializeComponent();

            LoadData();

        }

        public List<Person> list { get; set; }

        public List<Character> characterlist { get; set; }

        public void LoadData()

        {

            Random r = new Random();

            list = new List<Person>();

            //Person person = new Person();

            //person.id = 1;

            //person.name = "张三1";

            //person.age = r.Next(100);

            //person.TotalCount = 5;

            //list.Add(person);

            characterlist = new List<Character>();

            Character chara1 = new Character();

            chara1.name = "A";

            characterlist.Add(chara1);

            Character chara2 = new Character();

            chara2.name = "B";

            characterlist.Add(chara2);

            Character chara3 = new Character();

            chara3.name = "C";

            characterlist.Add(chara3);

            for (int i = 0; i < 9; i++)

            {

                if (i > 1)

                    break;

                Person person = new Person();

                person.id = i + 1;

                person.name = "张三" + i;

                person.age = r.Next(100);

                person.TotalCount = 5;

                list.Add(person);

            }

        }

        private void Grid_Loaded(object sender, RoutedEventArgs e)

        {

            DataGrid1.ItemsSource = list;

            DataGridTemplateColumn templeColumn = DataGrid1.Columns[4] as DataGridTemplateColumn;

            if (templeColumn == null) return;

            for (int i = 0; i < DataGrid1.Items.Count; i++)

            {

                DataGridCell dataGridCell = GetDataGridCell(i, 0);

                if (dataGridCell != null)

                {

                    DataGridCellInfo dataGridCellInfo = new DataGridCellInfo(dataGridCell);

                    if (dataGridCellInfo.Item != null)

                    {

                        object item = dataGridCellInfo.Item;

                        FrameworkElement element = templeColumn.GetCellContent(item);

                        if (element != null)

                        {

                            DataGrid dataGrid2 = (DataGrid)templeColumn.CellTemplate.FindName("DataGrid2", element);

                            dataGrid2.ItemsSource = characterlist;

                        }

                    }

                }

            }

        }

        public DataGridCell GetDataGridCell(int rowIndex, int columnIndex)

        {

            try

            {

                DataGridRow rowContainer = GetDataGridRow(rowIndex);

                if (rowContainer != null)

                {

                    DataGridCellsPresenter presenter = GetVisualChild<DataGridCellsPresenter>(rowContainer);

                    //这行代码是通过行得到单元格

                    DataGridCell cell = (DataGridCell)presenter.ItemContainerGenerator.ContainerFromIndex(columnIndex);

                    //这行代码是通过index得到具体的单元格

                    if (cell == null)

                    {

                        DataGrid1.ScrollIntoView(rowContainer, DataGrid1.Columns[columnIndex]);

                        cell = (DataGridCell)presenter.ItemContainerGenerator.ContainerFromIndex(columnIndex);

                    }

                    return cell;

                }

            }

            catch

            {

                return null;

            }

            return new DataGridCell();

        }

        public DataGridRow GetDataGridRow(int index)

        {

            if (index >= DataGrid1.Items.Count)

            {

                throw new IndexOutOfRangeException(String.Format("Index {0} is out of range.", index));

            }

            DataGridRow row = (DataGridRow)DataGrid1.ItemContainerGenerator.ContainerFromIndex(index);

            if (row == null)

            {

                // may be virtualized, bring into view and try again

                DataGrid1.ScrollIntoView(DataGrid1.Items[index]);

                WaitFor(TimeSpan.Zero, DispatcherPriority.SystemIdle);

                row = (DataGridRow)DataGrid1.ItemContainerGenerator.ContainerFromIndex(index);

            }

            return row;

        }

        public void WaitFor(TimeSpan time, DispatcherPriority priority)

        {

            DispatcherTimer timer = new DispatcherTimer(priority);

            timer.Tick += new EventHandler(OnDispatched);

            timer.Interval = time;

            DispatcherFrame dispatcherFrame = new DispatcherFrame(false);

            timer.Tag = dispatcherFrame;

            timer.Start();

            Dispatcher.PushFrame(dispatcherFrame);

        }

        public void OnDispatched(object sender, EventArgs args)

        {

            DispatcherTimer timer = (DispatcherTimer)sender;

            timer.Tick -= new EventHandler(OnDispatched);

            timer.Stop();

            DispatcherFrame frame = (DispatcherFrame)timer.Tag;

            frame.Continue = false;

        }

        public T GetVisualChild<T>(Visual parent) where T : Visual

        {

            T childContent = default(T);

            int numVisuals = VisualTreeHelper.GetChildrenCount(parent);

            for (int i = 0; i < numVisuals; i++)

            {

                Visual v = (Visual)VisualTreeHelper.GetChild(parent, i);

                childContent = v as T;

                if (childContent == null)

                {

                    childContent = GetVisualChild<T>(v);

                }

                if (childContent != null)

                {

                    break;

                }

            }

            return childContent;

        }

        private void TextBox_LostFocus(object sender, RoutedEventArgs e)

        {

            DataGridTemplateColumn templeColumn = DataGrid1.Columns[4] as DataGridTemplateColumn;

            if (templeColumn == null) return;

            for (int i = 0; i < DataGrid1.Items.Count; i++)

            {

                DataGridCell dataGridCell = GetDataGridCell(i, 0);

                if (dataGridCell != null)

                {

                    DataGridCellInfo dataGridCellInfo = new DataGridCellInfo(dataGridCell);

                    if (dataGridCellInfo.Item != null)

                    {

                        object item = dataGridCellInfo.Item;

                        FrameworkElement element = templeColumn.GetCellContent(item);

                        if (element != null)

                        {

                            DataGrid dataGrid2 = (DataGrid)templeColumn.CellTemplate.FindName("DataGrid2", element);

                            dataGrid2.ItemsSource = characterlist;

                            DataGridRow row = (DataGridRow)dataGrid2.ItemContainerGenerator.ContainerFromIndex(2);

                            row.Visibility = Visibility.Collapsed;

                        }

                    }

                }

            }

        }

    }

    public class Person

    {

        public int id { get; set; }

        public string name { get; set; }

        public int age { get; set; }

        public int TotalCount { get; set; }

    }

    public class Character

    {

        public string name { get; set; }

    }

}