將字節從文本框寫入文件從基本流與C＃

Question

基本上我需要將文本框中的文本從UTF-8轉換爲base16（我認爲這是十六進制），並將其寫入文件。

這可是背單詞：

//Setup byte reader. 
      FileStream fs = new FileStream(EditOpen.FileName, FileMode.Open); 
      BinaryReader br = new BinaryReader(fs); 
      long length = fs.Length; 
      //Read bytes to textBox1. 
      br.BaseStream.Position = 0x00001844; //Min loading address. 
      byte[] PT = br.ReadBytes(0x00000428); //Amount of bytes to load (1064 to be exact). 

      //Print string PT to textBox1 after converting to UTF-8 and replace 0's with DOT's. 
      textBox1.Text = System.Text.Encoding.UTF8.GetString(PT).Replace("\0", "."); 
      fs.Close(); 

Answer 1

最簡單的方法是使用一個StreamWriter用正確的encoding

using(StreamWriter sw = 
      new System.IO.StreamWriter(fs, 
       System.Text.UTF8Encoding)) 
    { 
    sw.Write(textBox1.Text); 
    }