WPF - 如何通过按下按钮来复制控件/整个网格？

这是我的评论的插图。我尽量保持ViewModel尽可能简单和通用，所以它应该看起来是空的。它由你来修改它，并最终把一些DataBinding（我会推荐它）。

让我们知道你是否需要更具体的东西。在XAML：

<Border Padding="10"> 
    <StackPanel> 
     <TextBlock Text="Insert a file or expand to insert more file at once." Margin="0 10"/> 
     <ListBox Name="DynamicList" HorizontalContentAlignment="Stretch" > 
      <ListBox.Resources> 
       <DataTemplate DataType="{x:Type local:FileM}"> 
        <Grid> 
         <Grid.ColumnDefinitions> 
          <ColumnDefinition Width="*" /> 
          <ColumnDefinition Width="4*" /> 
          <ColumnDefinition Width="*" /> 
         </Grid.ColumnDefinitions> 
         <TextBlock Grid.Column="0" Text="File Name:" FontWeight="Bold" Margin="0 10" /> 
         <TextBox Grid.Column="1" Height="20" Margin="10 0 0 0" /> 
         <Button Grid.Column="2" Content="Test" Height="20" Width="50" /> 
        </Grid> 
       </DataTemplate> 
      </ListBox.Resources> 
     </ListBox> 
     <!--Since I don'T have any information about it, I removed the ItemsControl part--> 
     <Grid Margin="0 10"> 
      <Grid.ColumnDefinitions> 
       <ColumnDefinition Width="*" /> 
       <ColumnDefinition Width="*" /> 
       <ColumnDefinition Width="*" /> 
      </Grid.ColumnDefinitions> 
      <Button Grid.Column="0" Margin="0 0 10 0" Content="Save" /> 
      <Button Grid.Column="1" Content="Expand" Click="Button_Click" /> 
      <Button Grid.Column="2" Margin="10 0 0 0" Content="Cancel" /> 
     </Grid> 
    </StackPanel> 
</Border> 

而后面的代码：

public class FileM 
{ 
} 
public partial class MainWindow : Window 
{ 
    public ObservableCollection<FileM> ListFiles = new ObservableCollection<FileM>(); 
    public MainWindow() 
    { 
     InitializeComponent(); 
     DynamicList.ItemsSource = ListFiles; 
    } 
    private void Button_Click(object sender, RoutedEventArgs e) 
    { 
     if(ListFiles.Count<7){ListFiles.Add(new FileM());} 
    } 
}