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  • 发布一个ini操作类

    因为常常要操作ini文件,把我使用的操作ini类发布出来.

    也是以前在网络上找到的,功能很全。


    public class IniFile
    {
    public string FileName; //INI文件名
    //声明读写INI文件的API函数
    [DllImport("kernel32")]
    private static extern bool WritePrivateProfileString(string section, string key, string val, string filePath);
    [DllImport("kernel32")]
    private static extern int GetPrivateProfileString(string section, string key, string def, byte[] retVal, int size, string filePath);
    ///
    ///类的构造函数,传递INI文件名
    ///
    public IniFile(string AFileName)
    {
    // 判断文件是否存在
    FileInfo fileInfo = new FileInfo(AFileName);
    //Todo:搞清枚举的用法
    if ((!fileInfo.Exists))
    throw (new ApplicationException("Ini文件不存在"));
    FileName = fileInfo.FullName;
    }
    //写INI文件
    /// <summary>
    /// 写INI文件
    /// </summary>
    /// <param name="Section"></param>
    /// <param name="Ident"></param>
    /// <param name="Value"></param>
    public void IniWriteValue(string Section, string Ident, string Value)
    {
    if (!WritePrivateProfileString(Section, Ident, Value, FileName))
    {
    // Todo:抛出自定义的异常
    throw (new ApplicationException("写Ini文件出错"));
    }
    }
    //读取INI文件指定
    /// <summary>
    /// 读取INI文件指定
    /// </summary>
    /// <param name="Section"></param>
    /// <param name="Ident"></param>
    /// <returns></returns>
    public string IniReadValue(string Section, string Ident)
    {
    //StringBuilder Buffer = new StringBuilder(255);
    Byte[] Buffer = new Byte[65535];
    int bufLen = GetPrivateProfileString(Section, Ident, "", Buffer, Buffer.GetUpperBound(0), FileName);
    //必须设定0(系统默认的代码页)的编码方式,否则无法支持中文
    string s = Encoding.GetEncoding(0).GetString(Buffer);
    s = s.Substring(0, bufLen);
    return s.Trim();
    }

    //读整数
    /// <summary>
    /// 读整数
    /// </summary>
    /// <param name="Section"></param>
    /// <param name="Ident"></param>
    /// <param name="Default"></param>
    /// <returns></returns>
    public int ReadInteger(string Section, string Ident, int Default)
    {
    string intStr = IniReadValue(Section, Ident);
    try
    {
    return Convert.ToInt32(intStr);
    }
    catch (Exception ex)
    {
    Console.WriteLine(ex.Message);
    return Default;
    }
    }

    //写整数
    /// <summary>
    /// 写整数
    /// </summary>
    /// <param name="Section"></param>
    /// <param name="Ident"></param>
    /// <param name="Value"></param>
    public void WriteInteger(string Section, string Ident, int Value)
    {
    IniWriteValue(Section, Ident, Value.ToString());
    }

    //读布尔
    /// <summary>
    /// 读布尔
    /// </summary>
    /// <param name="Section"></param>
    /// <param name="Ident"></param>
    /// <param name="Default"></param>
    /// <returns></returns>
    public bool ReadBool(string Section, string Ident, bool Default)
    {
    try
    {
    return Convert.ToBoolean(IniReadValue(Section, Ident));
    }
    catch (Exception ex)
    {
    Console.WriteLine(ex.Message);
    return Default;
    }
    }

    //写Bool
    /// <summary>
    /// 写Bool
    /// </summary>
    /// <param name="Section"></param>
    /// <param name="Ident"></param>
    /// <param name="Value"></param>
    public void WriteBool(string Section, string Ident, bool Value)
    {
    IniWriteValue(Section, Ident, Convert.ToString(Value));
    }

    //从Ini文件中,将指定的Section名称中的所有Ident添加到列表中
    /// <summary>
    /// 从Ini文件中,将指定的Section名称中的所有Ident添加到列表中
    /// </summary>
    /// <param name="Section"></param>
    /// <param name="Idents"></param>
    public void ReadSection(string Section, StringCollection Idents)
    {
    Byte[] Buffer = new Byte[16384];
    //Idents.Clear();

    int bufLen = GetPrivateProfileString(Section, null, null, Buffer, Buffer.GetUpperBound(0),
    FileName);
    //对Section进行解析
    GetStringsFromBuffer(Buffer, bufLen, Idents);
    }

    private void GetStringsFromBuffer(Byte[] Buffer, int bufLen, StringCollection Strings)
    {
    Strings.Clear();
    if (bufLen != 0)
    {
    int start = 0;
    for (int i = 0; i < bufLen; i++)
    {
    if ((Buffer[i] == 0) && ((i - start) > 0))
    {
    String s = Encoding.GetEncoding(0).GetString(Buffer, start, i - start);
    Strings.Add(s);
    start = i + 1;
    }
    }
    }
    }
    //从Ini文件中,读取所有的Sections的名称
    /// <summary>
    /// 从Ini文件中,读取所有的Sections的名称
    /// </summary>
    /// <param name="SectionList"></param>
    public void ReadSections(StringCollection SectionList)
    {
    //Note:必须得用Bytes来实现,StringBuilder只能取到第一个Section
    byte[] Buffer = new byte[65535];
    int bufLen = 0;
    bufLen = GetPrivateProfileString(null, null, null, Buffer,
    Buffer.GetUpperBound(0), FileName);
    GetStringsFromBuffer(Buffer, bufLen, SectionList);
    }
    //读取指定的Section的所有Value到列表中
    /// <summary>
    /// 读取指定的Section的所有Value到列表中
    /// </summary>
    /// <param name="Section"></param>
    /// <param name="Values"></param>
    public void ReadSectionValues(string Section, NameValueCollection Values)
    {
    StringCollection KeyList = new StringCollection();
    ReadSection(Section, KeyList);
    Values.Clear();
    foreach (string key in KeyList)
    {
    Values.Add(key, IniReadValue(Section, key));
    }
    }
    //清除某个Section
    /// <summary>
    /// 清除某个Section
    /// </summary>
    /// <param name="Section"></param>
    public void EraseSection(string Section)
    {
    //
    if (!WritePrivateProfileString(Section, null, null, FileName))
    {
    throw (new ApplicationException("无法清除Ini文件中的Section"));
    }
    }
    //删除某个Section下的键
    /// <summary>
    /// 删除某个Section下的键
    /// </summary>
    /// <param name="Section"></param>
    /// <param name="Ident"></param>
    public void DeleteKey(string Section, string Ident)
    {
    WritePrivateProfileString(Section, Ident, null, FileName);
    }
    //Note:对于Win9X,来说需要实现UpdateFile方法将缓冲中的数据写入文件
    //在Win NT, 2000和XP上,都是直接写文件,没有缓冲,所以,无须实现UpdateFile
    //执行完对Ini文件的修改之后,应该调用本方法更新缓冲区。
    public void UpdateFile()
    {
    WritePrivateProfileString(null, null, null, FileName);
    }

    //检查某个Section下的某个键值是否存在
    public bool ValueExists(string Section, string Ident)
    {
    //
    StringCollection Idents = new StringCollection();
    ReadSection(Section, Idents);
    return Idents.IndexOf(Ident) > -1;
    }

    //确保资源的释放
    ~IniFile()
    {
    UpdateFile();
    }
    }

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  • 原文地址:https://www.cnblogs.com/zhucl1006/p/897238.html
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