操作ini文件的公共类

这里是一个通过调用Windows API来操作ini文件的一个公共类，并用托管代码进行了封装，提供了对ini文件的增删查改功能。

using System;
using System.IO;
using System.Text;
using System.Runtime.InteropServices;

public class IniFiles
{
    public delegate void EventHandler(object sender, EventArgs e);

    public event EventHandler IniFileChanged;
    public event EventHandler Initialization;
    protected string IniFileName;

    public string FileName
    {
        get
        {
            return IniFileName;
        }
        set
        {
            if (value != IniFileName)
            {
                IniFileName = value;
                OnIniFileChanged(new EventArgs());
            }
        }
    }
    protected void OnIniFileChanged(EventArgs e)
    {
        if (IniFileChanged != null)
            IniFileChanged(null, e);
    }
    protected void OnInitialization(EventArgs e)
    {
        if (Initialization != null)
            Initialization(null, e);
    }
    [DllImport("kernel32")]
    private static extern long WritePrivateProfileString(string section, string key, string val, string filePath);
    /*
    section: 要写入的段落名
    key: 要写入的键，如果该key存在则覆盖写入
    val: key所对应的值
    filePath: INI文件的完整路径和文件名
    */

    [DllImport("kernel32")]
    private static extern int GetPrivateProfileString(string section, string key, string defVal, System.Text.StringBuilder retVal, int size, string filePath);
    /*
    section：要读取的段落名
    key: 要读取的键
    defVal: 读取异常的情况下的缺省值
    retVal: key所对应的值，如果该key不存在则返回空值
    size: 值允许的大小
    filePath: INI文件的完整路径和文件名

    */

    /// <summary>
    /// 构造方法
    /// </summary>
    /// <param name="INIPath">文件路径</param>
    public IniFiles(string FileName)
    {
        IniFileName = FileName;
    }
    /// <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 WriteValue(string Section, string Key, string Value)
    {
        WritePrivateProfileString(Section, Key, Value, this.IniFileName);
    }
    /// <summary>
    /// 删除指定段、键的值
    /// </summary>
    /// <param name="Section">要删除的值所在的段</param>
    /// <param name="Key">要删除的值所在的键</param>
    public void DeleteValue(string Section, string Key)
    {
        WritePrivateProfileString(Section, Key, null, this.IniFileName);
    }
    /// <summary>
    /// 删除指定段的值
    /// </summary>
    /// <param name="Section">要删除的值所在的段</param>
    public void DeleteValue(string Section)
    {
        WritePrivateProfileString(Section, null, null, this.IniFileName);
    }
    /// <summary>
    /// 读出INI文件
    /// </summary>
    /// <param name="Section">项目名称(如 [TypeName] )</param>
    /// <param name="Key">键</param>
    public string ReadValue(string Section, string Key, string Default)
    {
        StringBuilder temp = new StringBuilder(500);
        int i = GetPrivateProfileString(Section, Key, Default, temp, 500, this.IniFileName);
        return temp.ToString();
    }
    /// <summary>
    /// 验证文件是否存在
    /// </summary>
    /// <returns>布尔值</returns>
    public bool ExistINIFile()
    {
        return File.Exists(IniFileName);
    }
    /// <summary>
    /// 创建文件夹
    /// </summary>
    /// <param name="path">路径</param>
    private void NewDirectory(String path)
    {
        if (!Directory.Exists(path))
        {
            Directory.CreateDirectory(path);
        }
    }
    /// <summary>
    /// 添加一行注释
    /// </summary>
    /// <param name="Notes">注释</param>
    public void AddNotes(string Notes)
    {
        string filename = IniFileName;
        string path;
        path = Directory.GetParent(filename).ToString();
        NewDirectory(path);
        FileStream fs = new FileStream(filename, FileMode.OpenOrCreate, FileAccess.Write);
        StreamWriter sw = new StreamWriter(fs);
        sw.BaseStream.Seek(0, SeekOrigin.End);
        sw.WriteLine(@";" + Notes);
        sw.Flush();
        sw.Close();
        fs.Close();
        sw.Dispose();
        fs.Dispose();
    }
    /// <summary>
    /// 添加一行文本
    /// </summary>
    /// <param name="Text">文本</param>
    public void AddText(string Text)
    {
        string filename = IniFileName;
        string path;
        path = Directory.GetParent(filename).ToString();
        NewDirectory(path);
        FileStream fs = new FileStream(filename, FileMode.OpenOrCreate, FileAccess.Write);
        StreamWriter sw = new StreamWriter(fs);
        sw.BaseStream.Seek(0, SeekOrigin.End);
        sw.WriteLine(Text);
        sw.Flush();
        sw.Close();
        fs.Close();
        sw.Dispose();
        fs.Dispose();
    }

    #region 重载
    public void WriteValue(string Section, string Key, int Value)
    {
        WriteValue(Section, Key, Value.ToString());
    }
    public void WriteValue(string Section, string Key, Boolean Value)
    {
        WriteValue(Section, Key, Value.ToString());
    }
    public void WriteValue(string Section, string Key, DateTime Value)
    {
        WriteValue(Section, Key, Value.ToString());
    }
    public void WriteValue(string Section, string Key, object Value)
    {
        WriteValue(Section, Key, Value.ToString());
    }
    public int ReadValue(string Section, string Key, int Default)
    {
        return Convert.ToInt32(ReadValue(Section, Key, Default.ToString()));
    }

    public bool ReadValue(string Section, string Key, bool Default)
    {
        return Convert.ToBoolean(ReadValue(Section, Key, Default.ToString()));
    }

    public DateTime ReadValue(string Section, string Key, DateTime Default)
    {
        return Convert.ToDateTime(ReadValue(Section, Key, Default.ToString()));
    }

    public string ReadValue(string Section, string Key)
    {
        return ReadValue(Section, Key, "");
    }
    #endregion
}