System.IO.StreamWriter.Write C# (CSharp) Method

        public override void Write(char[] buffer, int index, int count)
        {
            if (buffer == null)
            {
                throw new ArgumentNullException(nameof(buffer), SR.ArgumentNull_Buffer);
            }
            if (index < 0)
            {
                throw new ArgumentOutOfRangeException(nameof(index), SR.ArgumentOutOfRange_NeedNonNegNum);
            }
            if (count < 0)
            {
                throw new ArgumentOutOfRangeException(nameof(count), SR.ArgumentOutOfRange_NeedNonNegNum);
            }
            if (buffer.Length - index < count)
            {
                throw new ArgumentException(SR.Argument_InvalidOffLen);
            }

            CheckAsyncTaskInProgress();

            while (count > 0)
            {
                if (_charPos == _charLen)
                {
                    Flush(false, false);
                }

                int n = _charLen - _charPos;
                if (n > count)
                {
                    n = count;
                }

                Debug.Assert(n > 0, "StreamWriter::Write(char[], int, int) isn't making progress!  This is most likely a race condition in user code.");
                Buffer.BlockCopy(buffer, index * sizeof(char), _charBuffer, _charPos * sizeof(char), n * sizeof(char));
                _charPos += n;
                index += n;
                count -= n;
            }

            if (_autoFlush)
            {
                Flush(true, false);
            }
        }

    public void CreateLog(Exception ex)
    {
      try
      {
        using (TextWriter writer = new StreamWriter(_filename, false))
        {
          writer.WriteLine("Crash Log: {0}", _crashTime);

          writer.WriteLine("= System Information");
          writer.Write(SystemInfo());
          writer.WriteLine();

          writer.WriteLine("= Disk Information");
          writer.Write(DriveInfo());
          writer.WriteLine();

          writer.WriteLine("= Exception Information");
          writer.Write(ExceptionInfo(ex));
					writer.WriteLine();
					writer.WriteLine();

					writer.WriteLine("= MediaPortal Information");
					writer.WriteLine();
        	IList<string> statusList = ServiceRegistration.Instance.GetStatus();
        	foreach (string status in statusList)
        		writer.WriteLine(status);
        }
      }
      catch (Exception e)
      {
        Console.WriteLine("UiCrashLogger crashed:");
        Console.WriteLine(e.ToString());
      }
    }