Question

我有多个FlowDocuments，我想连接在一起。下面的方法没有return语句。我想做的是将TextRange转回FlowDocument。

private FlowDocument Concatenate(FlowDocument source, FlowDocument target)
{   using(MemoryStream ms = new MemoryStream())
    {
      TextRange tr = new TextRange(source.ContentStart, source.ContentEnd);
      tr.Save(ms, DataFormats.XamlPackage);
      ms.Seek(0, SeekOrigin.Begin);
      tr = new TextRange(target.ContentEnd, target.ContentEnd);
      tr.Load(ms, DataFormats.XamlPackage);
   }
}

Answer 1

由于FlowDocuments基本上只是块集合，因此可以简单地从源文档中提取集合作为块列表，然后将这些集合插入到目标文档中。确保使用ToList（）提取块，否则您将收到“对象已属于另一个集合”的错误

试试这个（未经测试）：

'targetDocument is flowdocument that will be aggregate of both
'insertDocument contains document content you want to insert into target
 Dim insertBlocks As List(Of Block) = insertDocument.Blocks.ToList()
 targetDocument.Blocks.AddRange(insertBlocks)

Answer 2

@TheZenker答案的C＃实现（已通过测试）：

public static FlowDocument MergedFlowDoc(IEnumerable<FlowDocument> fDocs)
{
    var fDoc = new FlowDocument();
    foreach (var doc in fDocs)
    {
        fDoc.Blocks.AddRange(doc.Blocks.ToList());
    }
    return fDoc;
}

如何将多个FlowDocuments连接到一个FlowDocument中

2 个答案: