C#读取文件:按行读取

C#如何读取文件前面说过了:http://blog.csdn.net/yysyangyangyangshan/article/details/6948327,下面以一个例子来说明如何按行读取,其实很简单,就是使用FileStream的ReadLine()方法。
例如有这样一个文件test.txt,读取出来显示在一个richtextbox中,文件内容如下:
诺基亚    =N8
摩托罗拉  =ME525+
华为   =HONOR
HTC=A3366/T9299
读取方法为:
 public static Dictionary<string, string> ReadLineFile()
        {
            string filePath = Common.StartupPath + @"test.txt";

            Dictionary<string, string> contentDictionary = new Dictionary<string, string>();

            if (!File.Exists(filePath))
            {
                return contentDictionary;
            }

            FileStream fileStream = null;

            StreamReader streamReader = null;

            try
            {
                fileStream = new FileStream(filePath, FileMode.Open, FileAccess.Read);

                streamReader = new StreamReader(fileStream, Encoding.Default);

                fileStream.Seek(0, SeekOrigin.Begin);

                string content = streamReader.ReadLine();

                while (content != null)
                {
                    if (content.Contains("="))
                    {
                        string key = content.Substring(0, content.LastIndexOf("=")).Trim();

                        string value = content.Substring(content.LastIndexOf("=") + 1).Trim();

                        if (!contentDictionary.ContainsKey(key))
                        {
                            contentDictionary.Add(key, value);
                        }
                    }
                    content = streamReader.ReadLine();
                }
            }
            catch
            {
            }
            finally
            {
                if (fileStream != null)
                {
                    fileStream.Close();
                }
                if (streamReader != null)
                {
                    streamReader.Close();
                }
            }
            return contentDictionary;
        }

显示richtextbox如图:

C#读取文件:按行读取_第1张图片

详细工程:http://download.csdn.net/detail/yysyangyangyangshan/4073781



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