c＃从我的自定义应用程序拖放到记事本

2 回答

• 5

  您可以将数据的多种格式添加到传递给DoDragDrop调用的DataObject中，因此只需添加另一个对SetData的调用即可添加新格式 . 这是最合适的实现，这样Drop目标可以查询可用格式并选择它最喜欢的格式 .

  DataObject d = new DataObject();
   d.SetData(DataFormats.Serializable, myObject);
   d.SetData(DataFormats.Text, myObject.ToString());
   myForm.DoDragDrop(d, DragDropEffects.Copy);
  

  回复于 2024-04-25T12:15:34+08:00
• 3

  见here：

  Storing Data in Multiple Formats

  对于此特定代码段：

  DataObject dataObject = new DataObject();
  string sourceData = "Some string data to store...";
  
  // Encode the source string into Unicode byte arrays.
  byte[] unicodeText = Encoding.Unicode.GetBytes(sourceData); // UTF-16
  byte[] utf8Text = Encoding.UTF8.GetBytes(sourceData);
  byte[] utf32Text = Encoding.UTF32.GetBytes(sourceData);
  
  // The DataFormats class does not provide data format fields for denoting
  // UTF-32 and UTF-8, which are seldom used in practice; the following strings 
  // will be used to identify these "custom" data formats.
  string utf32DataFormat = "UTF-32";
  string utf8DataFormat  = "UTF-8";
  
  // Store the text in the data object, letting the data object choose
  // the data format (which will be DataFormats.Text in this case).
  dataObject.SetData(sourceData);
  // Store the Unicode text in the data object.  Text data can be automatically
  // converted to Unicode (UTF-16 / UCS-2) format on extraction from the data object; 
  // Therefore, explicitly converting the source text to Unicode is generally unnecessary, and
  // is done here as an exercise only.
  dataObject.SetData(DataFormats.UnicodeText, unicodeText);
  // Store the UTF-8 text in the data object...
  dataObject.SetData(utf8DataFormat, utf8Text);
  // Store the UTF-32 text in the data object...
  dataObject.SetData(utf32DataFormat, utf32Text);
  

  回复于 2024-04-25T12:15:34+08:00