請問富翁，C#怎樣讀出SQL中image字段類型的數據到TextArea中去. ( 积分: 100 )

SqlConnection con = ...
SqlCommand cmd = ...
byte[] buf = (byte[])cmd.ExecuteScaler("SELECT BinField FROM YourTable WHERE ...");
cmd.Close();
con.Close();
mTextArea.Text = BufToHex(buf);
string BufToHex(byte[] buf)
{
  StringBuilder sb = new StringBuilder();
  sb.Append("0x");
  foreach (byte b in buf)
    sb.Append(b.ToString("H2"));
// 格式字符串可能不对，自己查一下msdn
  return sb.ToString();
}