WPF Grid + DataGrid多表头 动态列实现

使用了Grid + DataGrid 显示
Grid部分（表头部分）用了GridSplitter作为列的区分，可以调节列宽，（未实现自动排序）
DataGrid部分，隐藏DataGrid的Header部分
界面部分：

<Grid>                <Grid.RowDefinitions>                    <RowDefinition Height="63"></RowDefinition>                    <RowDefinition Height ="*"></RowDefinition>                </Grid.RowDefinitions>                <Grid Grid.Row="0"  x:Name ="GridHs" ShowGridLines="False" Height ="63" VerticalAlignment ="Top">                   </Grid>                <DataGrid Grid.Row="1"  x:Name ="DataGridHs"  HeadersVisibility="None"  ItemsSource="{Binding}" DisplayMemberPath="Data"  Height ="400" CanUserAddRows =" False"  VerticalAlignment="Top"  AutoGenerateColumns="False" ></DataGrid>            </Grid>        </Grid>public MainWindow()        {            InitializeComponent();       BuildDG2();            BuildDG21();        }public ObservableCollection<ObservableCollection<string>> datas2 = new ObservableCollection<ObservableCollection<string>>();        void BuildDG2()        {            for (int i = 0; i < 4; i++)            {                ColumnDefinition column1 = new ColumnDefinition();                column1.Width = GridLength.Auto;                this.GridHs.ColumnDefinitions.Add(column1);                ColumnDefinition column = new ColumnDefinition();                column.Width = new GridLength(1);                this.GridHs.ColumnDefinitions.Add(column);            }            for (int i = 0; i < 3; i++)            {                this.GridHs.RowDefinitions.Add(new RowDefinition());                RowDefinition column = new RowDefinition();                column.Height = new GridLength(1);                this.GridHs.RowDefinitions.Add(column);            }            for (int i = 0; i < 3; i++)            {                for (int j = 0; j < 4; j++)                {                    if (i == 0 && j == 2)                    {                        continue;                    }                    UniformGrid gridTitle = new UniformGrid();                    Border b = new Border();                    b.VerticalAlignment = VerticalAlignment.Stretch;                    b.HorizontalAlignment = HorizontalAlignment.Stretch;                    b.Name = "Grid" + i + j;                    Pen p = new Pen();                    b.BorderBrush = new SolidColorBrush(Colors.Green);                    b.BorderThickness = new System.Windows.Thickness(2);                    TextBlock tbxTitleChinese = new TextBlock();                    b.Child = tbxTitleChinese;                    tbxTitleChinese.Text = "语文" + i + j;                    tbxTitleChinese.Width = 60;                    tbxTitleChinese.Height = 20;                    gridTitle.Children.Add(b);                    gridTitle.SetValue(Grid.RowProperty, i*2);                    gridTitle.SetValue(Grid.ColumnProperty, j*2);                    this.GridHs.Children.Add(gridTitle);                    if (i == 0 && j == 1)                    {                        Grid.SetColumnSpan(gridTitle,3);                        b.Width = 100;                    }                    if (i==2)                    {                        Binding bd = new Binding();                        bd.Path = new System.Windows.PropertyPath("Width");                        bd.ElementName = @"行" + i;                        BindingOperations.SetBinding(gridTitle, WidthProperty, bd);                    }                }            }            for (int i = 0; i < 4; i++)            {                GridSplitter gSp = new GridSplitter();                gSp.Background = new SolidColorBrush(Colors.Green);                gSp.HorizontalAlignment = HorizontalAlignment.Stretch;                gSp.Width = 1;                if (i == 1)                {                    gSp.SetValue(Grid.RowProperty, 1);                }                else                {                    gSp.SetValue(Grid.RowProperty, 0);                }                gSp.SetValue(Grid.ColumnProperty, i * 2 + 1);                this.GridHs.Children.Add(gSp);                Grid.SetRowSpan(gSp, 6);            }        }        void BuildDG21()        {            for (int i = 0; i < 10; i++)            {                ObservableCollection<string> columnsList = new ObservableCollection<string>();                for (int j = 0; j < 4; j++)                {                    columnsList.Add((i + j + 3).ToString());                }                datas2.Add(columnsList);            }            for (int i = 0; i < 4; i++)            {                DataGridTextColumn dgColumn = new DataGridTextColumn();                dgColumn.Header = @"行" + i;                dgColumn.SetValue(NameProperty, @"行" + i);                this.DataGridHs.Columns.Add(dgColumn);                MultiBinding mbd = new MultiBinding();                Binding bd1 = new Binding("[" + i + "]");                Binding bd2 = new Binding();                bd2.Path = new System.Windows.PropertyPath("ActualWidth");                bd2.Source = LogicalTreeHelper.FindLogicalNode(this.GridHs,"Grid2" + i);                           dgColumn.Binding = bd1;                BindingOperations.SetBinding(dgColumn, DataGridTextColumn.WidthProperty, bd2);                           }            this.DataGridHs.DataContext = datas2;         }