c# 將記錄檔顯示在RichTextBox控制項裡

//由於日誌中含有中文，用常用的LoadFile方法會含有亂碼，所以用這種流的方式，一行一行的讀。            string fullPath = @"F:\comback\Release\log\20121218.Log";            StringBuilder sb = new StringBuilder("");            StreamReader streamReader = null;            try            {                streamReader = new StreamReader(fullPath, Encoding.UTF8);                string line = streamReader.ReadLine();                while (!string.IsNullOrEmpty(line))                {                    sb.Append(line + "\n");                    line = streamReader.ReadLine();                }                this.richTextBox1.Text = sb.ToString();            }            catch (Exception ee)            {                MessageBox.Show("" + ee.Message);            }            finally            {                if (streamReader != null)                {                    streamReader.Close();                }            }