title: DataGrid copy to clipboard - losing data
body: <p>I wrote an app which is generating some report and after clicking right button it exports all data to Excel. When I personally use it I don't want to press button. I want to do: <kbd>CTRL</kbd>+<kbd>A</kbd>, <kbd>CTRL</kbd>+<kbd>C</kbd> and paste it to Excel. </p>
  
  <p>The problem here is that after <kbd>CTRL</kbd>+<kbd>V</kbd> it pastes 241 rows to Excel but in report there are 244 rows. It cuts 3 rows. I have no idea why, I tought that there is a limit but when I'm generating report with less rows it also cuts 2 rows. Any idea why is it happening ?</p>
  
  <p>BTW: I didn't write any method for copying so I couldn't screw anything. I would be grateful if someone would help me.</p>