RichTextBox中怎样判断光标左右是否是button,textox...我用1.this.richTextbox.CaretPosition.GetAdjacentElement(LogicalDirection.Backward)2.this.richTextbox.CaretPosition.GetNextContextPosition(LogicalDirection.Backward)都获取不到.
另又一问:谁有FlowDocument做过结构化录入的给点指导,谢谢!!