C# 如何将多个FlowDocumentReader添加到StackPanel？

多亏了，我能够将流文档包装在流文档阅读器中，从而将其添加到堆栈面板

但现在我有两个问题：

• 似乎只有第一个FlowDocumentReader被添加，其余的被忽略
• 有一个我无法摆脱的多余的边距

如何将多个FlowDocumentReader添加到StackPanel中而没有多余的边距？

XAML:

<Window x:Class="TestFlowdoc23432.Window1"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="Window1" Height="200" Width="300">
    <StackPanel Margin="10">
        <ContentControl x:Name="MainArea"/>
    </StackPanel>
</Window>

using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;

namespace TestFlowdoc23432
{
    public partial class Window1 : Window
    {
        public Window1()
        {
            InitializeComponent();

            StackPanel sp = new StackPanel();

            TextBlock tb1 = new TextBlock();
            tb1.Text = "first text block";
            sp.Children.Add(tb1);

            TextBlock tb2 = new TextBlock();
            tb2.Text = "second text block";
            sp.Children.Add(tb2);

            sp.Children.Add(GetFlowDocumentReader("first flow document reader"));
            sp.Children.Add(GetFlowDocumentReader("second flow document reader"));

            MainArea.Content = sp;
        }

        FlowDocumentReader GetFlowDocumentReader(string text)
        {
            FlowDocumentReader fdr = new FlowDocumentReader();
            FlowDocument fd = new FlowDocument();
            fdr.Document = fd;
            fdr.Margin = new Thickness(0);
            Paragraph par = new Paragraph();
            par.Margin = new Thickness(0);
            fd.Blocks.Add(par);

            Run r = new Run(text);
            par.Inlines.Add(r);

            return fdr;
        }

    }
}

---

要使文本显示在左侧，您需要在flowdocument上设置pagepadding属性，如下所示：

fd.PagePadding = new Thickness(0);

您似乎只获得第一个读卡器的原因是因为它填充了可用的空间（将其移动为第一个对象，您将看不到文本块）。 如果将FlowDocumentReader更改为FlowDocumentScrollViewer并使用VerticalScrollBarVisibility属性，则可以获得所需的效果。以下是应用了更改的GetFlowDocumentReader方法：

FlowDocumentScrollViewer GetFlowDocumentReader(string text)
        {
            FlowDocumentScrollViewer fdr = new FlowDocumentScrollViewer();

            FlowDocument fd = new FlowDocument();
            fdr.Document = fd;
            fdr.Margin = new Thickness(0);
            Paragraph par = new Paragraph();
            par.Margin = new Thickness(0);
            fd.Blocks.Add(par);

            Run r = new Run(text);
            par.Inlines.Add(r);

            fd.PagePadding = new Thickness(0);
            fdr.VerticalScrollBarVisibility = ScrollBarVisibility.Hidden;

            return fdr;
        }