ZWGXPICK_SYS/ZWGXPICK_SYS.DBUtility/ZWGXPICK/DBUtility/IniFile.cs

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

public class IniFile
{
    public string FileName;

    [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);

    public IniFile(string AFileName)
    {
        FileInfo fileInfo = new FileInfo(AFileName);
        if (!fileInfo.Exists)
        {
            StreamWriter streamWriter = new StreamWriter(AFileName, false, Encoding.Default);
            try
            {
                streamWriter.Write("#配置档案");
                streamWriter.Close();
            }
            catch
            {
                throw new ApplicationException("Ini文件不存在");
            }
        }
        FileName = fileInfo.FullName;
    }

    public void WriteString(string Section, string Ident, string Value)
    {
        if (!WritePrivateProfileString(Section, Ident, Value, FileName))
        {
            throw new ApplicationException("写Ini文件出错");
        }
    }

    public string ReadString(string Section, string Ident, string Default="")
    {
        byte[] array = new byte[65535];
        int privateProfileString = GetPrivateProfileString(Section, Ident, Default, array, array.GetUpperBound(0), FileName);
        string @string = Encoding.GetEncoding(0).GetString(array, 0, privateProfileString);
        return @string.Trim();
    }

    public int ReadInteger(string Section, string Ident, int Default)
    {
        string value = ReadString(Section, Ident, Convert.ToString(Default));
        try
        {
            return Convert.ToInt32(value);
        }
        catch (Exception ex)
        {
            Console.WriteLine(ex.Message);
            return Default;
        }
    }

    public void WriteInteger(string Section, string Ident, int Value)
    {
        WriteString(Section, Ident, Value.ToString());
    }

    public bool ReadBool(string Section, string Ident, bool Default)
    {
        try
        {
            return Convert.ToBoolean(ReadString(Section, Ident, Convert.ToString(Default)));
        }
        catch (Exception ex)
        {
            Console.WriteLine(ex.Message);
            return Default;
        }
    }

    public void WriteBool(string Section, string Ident, bool Value)
    {
        WriteString(Section, Ident, Convert.ToString(Value));
    }

    public void ReadSection(string Section, StringCollection Idents)
    {
        byte[] array = new byte[16384];
        int privateProfileString = GetPrivateProfileString(Section, null, null, array, array.GetUpperBound(0), FileName);
        GetStringsFromBuffer(array, privateProfileString, Idents);
    }

    private void GetStringsFromBuffer(byte[] Buffer, int bufLen, StringCollection Strings)
    {
        Strings.Clear();
        if (bufLen == 0)
        {
            return;
        }
        int num = 0;
        for (int i = 0; i < bufLen; i++)
        {
            if (Buffer[i] == 0 && i - num > 0)
            {
                string @string = Encoding.GetEncoding(0).GetString(Buffer, num, i - num);
                Strings.Add(@string);
                num = i + 1;
            }
        }
    }

    public void ReadSections(StringCollection SectionList)
    {
        byte[] array = new byte[65535];
        int num = 0;
        num = GetPrivateProfileString(null, null, null, array, array.GetUpperBound(0), FileName);
        GetStringsFromBuffer(array, num, SectionList);
    }

    public void ReadSectionValues(string Section, NameValueCollection Values)
    {
        StringCollection stringCollection = new StringCollection();
        ReadSection(Section, stringCollection);
        Values.Clear();
        StringEnumerator enumerator = stringCollection.GetEnumerator();
        try
        {
            while (enumerator.MoveNext())
            {
                string current = enumerator.Current;
                Values.Add(current, ReadString(Section, current, ""));
            }
        }
        finally
        {
            IDisposable disposable = enumerator as IDisposable;
            if (disposable != null)
            {
                disposable.Dispose();
            }
        }
    }

    public void EraseSection(string Section)
    {
        if (!WritePrivateProfileString(Section, null, null, FileName))
        {
            throw new ApplicationException("无法清除Ini文件中的Section");
        }
    }

    public void DeleteKey(string Section, string Ident)
    {
        WritePrivateProfileString(Section, Ident, null, FileName);
    }

    public void UpdateFile()
    {
        WritePrivateProfileString(null, null, null, FileName);
    }

    public bool ValueExists(string Section, string Ident)
    {
        StringCollection stringCollection = new StringCollection();
        ReadSection(Section, stringCollection);
        return stringCollection.IndexOf(Ident) > -1;
    }

    ~IniFile()
    {
        UpdateFile();
    }
}