title: Can textbox.text encoding be ignored?
body: <p>I have code that reads data from a textbox.text control into a byte array. It uses UTF8 encoding and there has not been any issues. The code reads, say, M number of bytes from the textbox, and adds it to output, as bytes. That all works fine.</p>
  
  <p>When the data is written back, if the text is Non-English language, there are often problems. For instance if the text is the Chinese char 南 say repeated a few times, which seems to be, for the text box, 0xE5, 0x8D, 0x97. </p>
  
  <p>When the data is written back to the text box, if say, the first write ended on 0xE5, when the next batch of data is written back starting with 0x8D 0x97, it is transformed somehow to 0xEF 0xBF 0xBD. </p>
  
  <p><a href="https://i.stack.imgur.com/pKDwe.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/pKDwe.jpg" alt="enter image description here"></a></p>
  
  <p>I'm just using Array.Copy. Nothing special. With English, no problem. With Chinese (and Japanese as well), the first write goes OK but the second write has some of these "corrupted" chars.</p>