使用Wpf DataGrid可以將集合嵌入到集合中嗎？

Question

我想要一個簡單的示例程序，使用Wpf DataGrid嵌套集合中的集合。

Answer 1

這是一個使用VB.Net代碼隱藏的實現。代碼僅用於創建測試數據。

Class MainWindow 

Public Property cs As New List(Of c1) 

Sub New() 

    ' This call is required by the designer. 
    InitializeComponent() 

    For i1 = 1 To 3 
     Dim c1 = New c1 
     cs.Add(c1) 
     c1.c1text = i1 
     For i2 = 1 To 3 
      Dim c2 = New c2 
      c1.c1col.Add(c2) 
      c2.c2text = i1 & i2 
      For i3 = 1 To 3 
       Dim c3 = New c3 
       c2.c2col.Add(c3) 
       c3.c3text = i1 & i2 & i3 
       For i4 = 1 To 3 
        Dim c4 = New c4 
        c3.c3col.Add(c4) 
        c4.c4text = i1 & i2 & i3 & i4 
        For i5 = 1 To 3 
         c4.c4col.Add(i1 & i2 & i3 & i4 & i5) 
        Next 
       Next 
      Next 
     Next 
    Next 
    DataGrid1.ItemsSource = cs 
End Sub 

End Class 

Public Class c1 
    Public Property c1text As String 
    Public Property c1col As New List(Of c2) 
End Class 

Public Class c2 
    Public Property c2text As String 
    Public Property c2col As New List(Of c3) 
End Class 

Public Class c3 
    Public Property c3text As String 
    Public Property c3col As New List(Of c4) 
End Class 

Public Class c4 
    Public Property c4text As String 
    Public Property c4col As New List(Of String) 
End Class 

這裏的XAML中：

<Window x:Class="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 Name="DataGrid1" IsReadOnly="True" AutoGenerateColumns="False" > 
     <DataGrid.Columns> 
      <DataGridTextColumn Binding="{Binding c1text}" /> 
      <DataGridTemplateColumn> 
       <DataGridTemplateColumn.CellTemplate> 
        <DataTemplate> 
         <DataGrid Name="DataGrid2" ItemsSource="{Binding c1col}" IsReadOnly="True" AutoGenerateColumns="False"> 
          <DataGrid.Columns> 
           <DataGridTextColumn Binding="{Binding c2text}" /> 
           <DataGridTemplateColumn> 
            <DataGridTemplateColumn.CellTemplate> 
             <DataTemplate> 
              <DataGrid Name="DataGrid3" ItemsSource="{Binding c2col}" IsReadOnly="True" AutoGenerateColumns="False"> 
               <DataGrid.Columns> 
                <DataGridTextColumn Binding="{Binding c3text}" /> 
                <DataGridTemplateColumn> 
                 <DataGridTemplateColumn.CellTemplate> 
                  <DataTemplate> 
                   <DataGrid Name="DataGrid4" ItemsSource="{Binding c3col}" IsReadOnly="True" AutoGenerateColumns="False"> 
                    <DataGrid.Columns> 
                     <DataGridTextColumn Binding="{Binding c4text}" /> 
                     <DataGridTemplateColumn> 
                      <DataGridTemplateColumn.CellTemplate> 
                       <DataTemplate> 
                        <DataGrid Name="DataGrid5" ItemsSource="{Binding c4col}" IsReadOnly="True" AutoGenerateColumns="False"> 
                         <DataGrid.Columns> 
                          <DataGridTextColumn Binding="{Binding}" /> 
                         </DataGrid.Columns> 
                        </DataGrid> 
                       </DataTemplate> 
                      </DataGridTemplateColumn.CellTemplate> 
                     </DataGridTemplateColumn> 
                    </DataGrid.Columns> 
                   </DataGrid> 
                  </DataTemplate> 
                 </DataGridTemplateColumn.CellTemplate> 
                </DataGridTemplateColumn> 
               </DataGrid.Columns> 
              </DataGrid> 
             </DataTemplate> 
            </DataGridTemplateColumn.CellTemplate> 
           </DataGridTemplateColumn> 
          </DataGrid.Columns> 
         </DataGrid> 
        </DataTemplate> 
       </DataGridTemplateColumn.CellTemplate> 
      </DataGridTemplateColumn> 
     </DataGrid.Columns> 
    </DataGrid> 
</Grid>