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;
}