C#操作INI文件
2011-07-29 11:38
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public class SaveInfor { public string inipath; [DllImport("kernel32")] private static extern long WritePrivateProfileString(string section, string key, string val, string filePath); [DllImport("kernel32")] private static extern int GetPrivateProfileString(string section, string key, string def, StringBuilder retVal, int size, string filePath); /// <summary> /// 构造方法 /// </summary> /// <param name="INIPath">文件路径</param> public SaveInfor(string INIPath) { inipath = Application.StartupPath +"\\" +INIPath; } /// <summary> /// 写入INI文件 /// </summary> /// <param name="Section">项目名称(如 [TypeName] )</param> /// <param name="Key">键</param> /// <param name="Value">值</param> public void IniWriteValue(string Section, string Key, string Value) { WritePrivateProfileString(Section, Key, Value, this.inipath); } /// <summary> /// 读出INI文件 /// </summary> /// <param name="Section">项目名称(如 [TypeName] )</param> /// <param name="Key">键</param> public string IniReadValue(string Section, string Key) { StringBuilder temp = new StringBuilder(500); int i = GetPrivateProfileString(Section, Key, "", temp, 500, this.inipath); return temp.ToString(); } /// <summary> /// 读出字符数组 /// </summary> /// <param name="Section">项目名称(如 [TypeName] )</param> /// <param name="Key">键</param> /// <returns></returns> public List<string> IniReadValues(string Section, string Key) { string[] str = IniReadValue(Section, Key).Split(','); List<string> li = new List<string>(); foreach (string s in str) { if (!string.IsNullOrEmpty(s)) { li.Add(s); } } return li; }
/// <summary> /// 读写INI文件的类。 /// </summary> public class INIHelper { // 读写INI文件相关。 [DllImport("kernel32.dll", EntryPoint = "WritePrivateProfileString", CharSet = CharSet.Ansi)] public static extern long WritePrivateProfileString(string section, string key, string val, string filePath); [DllImport("kernel32.dll", EntryPoint = "GetPrivateProfileString", CharSet = CharSet.Ansi)] public static extern int GetPrivateProfileString(string section, string key, string def, StringBuilder retVal, int size, string filePath); [DllImport("kernel32.dll", EntryPoint = "GetPrivateProfileSectionNames", CharSet = CharSet.Ansi)] public static extern int GetPrivateProfileSectionNames(IntPtr lpszReturnBuffer, int nSize, string filePath); [DllImport("KERNEL32.DLL ", EntryPoint = "GetPrivateProfileSection", CharSet = CharSet.Ansi)] public static extern int GetPrivateProfileSection(string lpAppName, byte[] lpReturnedString, int nSize, string filePath); /// <summary> /// 向INI写入数据。 /// </summary> /// <PARAM name="Section">节点名。</PARAM> /// <PARAM name="Key">键名。</PARAM> /// <PARAM name="Value">值名。</PARAM> public static void Write(string Section, string Key, string Value, string path) { WritePrivateProfileString(Section, Key, Value, path); } /// <summary> /// 读取INI数据。 /// </summary> /// <PARAM name="Section">节点名。</PARAM> /// <PARAM name="Key">键名。</PARAM> /// <PARAM name="Path">值名。</PARAM> /// <returns>相应的值。</returns> public static string Read(string Section, string Key, string path) { StringBuilder temp = new StringBuilder(255); int i = GetPrivateProfileString(Section, Key, "", temp, 255, path); return temp.ToString(); } /// <summary> /// 读取一个ini里面所有的节 /// </summary> /// <param name="sections"></param> /// <param name="path"></param> /// <returns></returns> public static int GetAllSectionNames(out string[] sections, string path) { int MAX_BUFFER = 32767; IntPtr pReturnedString = Marshal.AllocCoTaskMem(MAX_BUFFER); int bytesReturned = GetPrivateProfileSectionNames(pReturnedString, MAX_BUFFER, path); if (bytesReturned == 0) { sections = null; return -1; } string local = Marshal.PtrToStringAnsi(pReturnedString, (int)bytesReturned).ToString(); Marshal.FreeCoTaskMem(pReturnedString); //use of Substring below removes terminating null for split sections = local.Substring(0, local.Length - 1).Split('\0'); return 0; } /// <summary> /// 得到某个节点下面所有的key和value组合 /// </summary> /// <param name="section"></param> /// <param name="keys"></param> /// <param name="values"></param> /// <param name="path"></param> /// <returns></returns> public static int GetAllKeyValues(string section, out string[] keys, out string[] values, string path) { byte[] b = new byte[65535]; GetPrivateProfileSection(section, b, b.Length, path); string s = System.Text.Encoding.Default.GetString(b); string[] tmp = s.Split((char)0); ArrayList result = new ArrayList(); foreach (string r in tmp) { if (r != string.Empty) result.Add(r); } keys = new string[result.Count]; values = new string[result.Count]; for (int i = 0; i < result.Count; i++) { string[] item = result[i].ToString().Split(new char[] { '=' }); if (item.Length == 2) { keys[i] = item[0].Trim(); values[i] = item[1].Trim(); } else if (item.Length == 1) { keys[i] = item[0].Trim(); values[i] = ""; } else if (item.Length == 0) { keys[i] = ""; values[i] = ""; } } return 0; } }
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