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+# CSharpCommonClass
+C#常用类汇总
+
+1，iniFile.cs by zhangbc 2015-07-05:此类包含了ini的基本的操作，主要功能是：存取ini文件中的数据。
diff --git a/iniFile.cs b/iniFile.cs
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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Runtime.InteropServices;
+using System.IO;
+
+
+namespace DataPlantingForm
+{
+ ///
+ /// 操作INI文件类
+ /// by zhangbc 2015-07-06
+ ///
+ class iniFile
+ {
+ ///
+ /// 内存缓冲区的长度
+ ///
+ const int DATA_SIZE = 1024;
+ ///
+ /// 默认的内存缓冲区大小
+ ///
+ const uint MAX_BUFFER = 32767;
+ private string _path;
+ ///
+ /// ini文件及其路径
+ ///
+ private string iniPath
+ {
+ get {return _path;}
+ set { _path = value; }
+ }
+ [StructLayout(LayoutKind.Sequential,CharSet=CharSet.Auto)]
+ public struct StringBuffer
+ {
+ [MarshalAs(UnmanagedType.ByValTStr, SizeConst = DATA_SIZE)]
+ public string sText;
+ }
+
+ #region API声明
+ ///
+ /// 将结点信息写入ini文件
+ ///
+ /// 节点名称
+ /// key值
+ /// value值
+ /// ini文件及其路径
+ /// 实际写入的长度
+ [DllImport("kernel32.dll", CharSet = CharSet.Auto)]
+ private static extern long WritePrivateProfileString(string section, string key, string val, string filePath);
+
+ ///
+ /// 读取ini文件中指定的Key值(法一)
+ ///
+ /// 节点名称
+ /// key值
+ /// 读取失败时的默认值
+ /// 返回的value值(自定义结构型)
+ /// 内存缓冲区的长度
+ /// ini文件及其路径
+ /// 实际读取到的长度
+ [DllImport("kernel32.dll", CharSet = CharSet.Auto)]
+ private static extern int GetPrivateProfileString(string section, string key, string def, out StringBuffer retVal, int size, string filePath);
+
+ ///
+ /// 读取ini文件中指定的Key值(法二)
+ ///
+ /// 节点名称
+ /// key值
+ /// 读取失败时的默认值
+ /// 返回的value值(字符组型)
+ /// 内存缓冲区的长度
+ /// ini文件及其路径
+ /// 实际读取到的长度
+ [DllImport("kernel32.dll", CharSet = CharSet.Auto)]
+ private static extern uint GetPrivateProfileString(string section, string key, string def, [In,Out] char[] retVal, uint size, string filePath);
+
+ ///
+ /// 获取所有的结点名称
+ ///
+ /// 存放节点名称的内存地址,每个结点用\0间隔
+ /// 内存大小
+ /// ini文件及其路径
+ /// 内容的实际长度,为0表示没有内容,为size-2表示内存大小不够
+ [DllImport("kernel32.dll", CharSet = CharSet.Auto)]
+ private static extern uint GetPrivateProfileSectionNames(IntPtr szReturnBuffer, uint size, string filePath);
+
+ ///
+ /// 获取某个结点下的所有的Key和Value
+ ///
+ /// 结点名称
+ /// 存放节点名称的内存地址,每个结点用\0间隔
+ /// 内存大小
+ /// ini文件及其路径
+ /// 内容的实际长度,为0表示没有内容,为size-2表示内存大小不够
+ [DllImport("kernel32.dll", CharSet = CharSet.Auto)]
+ private static extern uint GetPrivateProfileSection(string section,IntPtr szReturnBuffer, uint size, string filePath);
+ #endregion
+
+ ///
+ /// 构造函数
+ ///
+ /// 文件名及其路径
+ public iniFile(string sPath)
+ {
+ this._path = sPath;
+ string path = iniPath.Substring(0, iniPath.LastIndexOf('\\'));
+ if (!Directory.Exists(path))
+ Directory.CreateDirectory(path);
+ if (!File.Exists(_path))
+ createIniFile();
+ }
+
+ ///
+ /// 写文件操作
+ ///
+ /// 节点名称
+ /// key值
+ /// value值
+ public void writeIniValue(string section,string key,string val)
+ {
+ WritePrivateProfileString(section,key,val,this._path);
+ }
+
+ ///
+ /// 读取ini文件的所有的section结点
+ ///
+ /// 返回结点值列表
+ public string[] readiniSections()
+ {
+ string[] sections = new string[0];
+ //申请内存
+ IntPtr pString = Marshal.AllocCoTaskMem((int)MAX_BUFFER * sizeof(char));
+ uint byteReturned = GetPrivateProfileSectionNames(pString,MAX_BUFFER,this._path);
+ if(byteReturned!=0)
+ {
+ string local = Marshal.PtrToStringAuto(pString,(int)byteReturned).ToString();
+ sections = local.Split(new char[]{'\0'},StringSplitOptions.RemoveEmptyEntries);
+ }
+ //释放内存
+ Marshal.FreeCoTaskMem(pString);
+ return sections;
+ }
+
+ ///
+ /// 读取ini文件下指定结点下Key值列表
+ ///
+ /// 节点名
+ /// 返回Key值列表
+ public string[] readIniKeys(string section)
+ {
+ string[] keys = new string[0];
+ const int SIZE = DATA_SIZE * 10;
+
+ if(string.IsNullOrEmpty(section))
+ {
+ throw new ArgumentException("必须指定节点名称","section");
+ }
+ char[] chars = new char[SIZE];
+ uint byteReturned = GetPrivateProfileString(section, null,null,chars, SIZE, this._path);
+ if (byteReturned != 0)
+ {
+ keys = new string(chars).Split(new char[] { '\0' }, StringSplitOptions.RemoveEmptyEntries);
+ }
+ chars = null;
+ return keys;
+ }
+
+ ///
+ /// 读取ini文件下指定key值的value
+ ///
+ /// 节点名
+ /// 指定的key值
+ /// value值
+ public string readIniValues(string section,string key)
+ {
+ StringBuffer retVal;
+ GetPrivateProfileString(section,key,null,out retVal,DATA_SIZE,this._path);
+ return retVal.sText.Trim();
+ }
+
+ ///
+ /// 读取ini文件下指定values值,重载
+ ///
+ /// 节点名
+ /// 指定的key值
+ /// value值
+ public string readIniValues(string section, string key, string defaultVal)
+ {
+ StringBuffer retVal;
+ GetPrivateProfileString(section, key, null, out retVal, DATA_SIZE, this._path);
+ string tmp=retVal.sText.Trim();
+ return tmp==""?defaultVal:tmp;
+ }
+
+ ///
+ /// 读取ini文件下指定结点的所有条目(key=value)
+ ///
+ ///
+ ///
+ public string[] readIniKeyVals(string section)
+ {
+ string[] items = new string[0];
+ //申请内存
+ IntPtr pString = Marshal.AllocCoTaskMem((int)MAX_BUFFER * sizeof(char));
+ uint byteReturned = GetPrivateProfileSection(section,pString, MAX_BUFFER, this._path);
+ if (!(byteReturned==MAX_BUFFER-2)||(byteReturned == 0))
+ {
+ string local = Marshal.PtrToStringAuto(pString, (int)byteReturned).ToString();
+ items = local.Split(new char[] { '\0' }, StringSplitOptions.RemoveEmptyEntries);
+ }
+ //释放内存
+ Marshal.FreeCoTaskMem(pString);
+ return items;
+ }
+
+ ///
+ /// 创建空文件ini
+ ///
+ public void createIniFile()
+ {
+ StreamWriter wr = File.CreateText(this._path);
+ wr.Write("");
+ wr.Flush();
+ wr.Close();
+ }
+ }
+}