关于C#读取INI文件出现的问题

[mrshu1985]

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Runtime.InteropServices;
using System.Data.SqlClient;
using System.Data;
namespace dblink
{
public class Class1
{

[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);

//对ini文件进行写操作的函数
public void IniWriteValue(string Section, string Key, string Value, string filepath)
{
WritePrivateProfileString(Section, Key, Value, filepath);
}
//对ini文件进行读操作的函数
public string IniReadValue(string Section, string Key, string filepath)
{
StringBuilder temp = new StringBuilder(255);
int i = GetPrivateProfileString(Section, Key, "", temp,
255, filepath);
return temp.ToString();

}

/*
db =IniReadValue("Database","Database",@"d:\config.ini");
userid=IniReadValue("Database","Userid",@"d:\config.ini");
pwd=IniReadValue("Database","Dbpass",@"d:\config.ini");

*/这部分有错误！！

}


}
注释部分有问题！
请各位大侠帮忙看一下！！！

[猿敲月下码]

楼主给你个读取INI的API

[DllImport("kernel32")]//读取INI文件
private static extern long GetPrivateProfileString(string section, string key, string def, StringBuilder retVal, int size, string filePath);

[sunshine_anycall]

mark
up

[猿敲月下码]

int i = GetPrivateProfileString(Section, Key, "", temp, 
            255, filepath); 

？？为什么要用个int i 呢？

[猿敲月下码]

刚测试了下 没什么问题啊：

using System; 
using System.Collections.Generic; 
using System.Text; 
using System.Runtime.InteropServices; 
using System.Data.SqlClient; 
using System.Data;
public class class1
{
	    [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); 
      
        //对ini文件进行写操作的函数 
        public void IniWriteValue(string Section, string Key, string Value, string filepath) 
        { 
            WritePrivateProfileString(Section, Key, Value, filepath); 
        } 
        //对ini文件进行读操作的函数 
        public string IniReadValue(string Section, string Key, string filepath) 
        { 
            StringBuilder temp = new StringBuilder(255); 
            int i = GetPrivateProfileString(Section, Key, "", temp, 
            255, filepath); 
            return temp.ToString(); 
        }    

}
class test
{
   static void Main()
	{
        string db;
        class1 c=new class1();        
        c.IniWriteValue("Database","Database","bbbbb",@"d:\config.ini");  
        db=c.IniReadValue("Database","Database",@"d:\config.ini");
        Console.WriteLine(db);//我这里输出结果是bbbbb，对的 不知道你错哪了
       // db =IniReadValue("Database","Database",@"d:\config.ini"); 
       // Console.WriteLine(db);
       // userid=IniReadValue("Database","Userid",@"d:\config.ini"); 
       // pwd=IniReadValue("Database","Dbpass",@"d:\config.ini"); 
	}
}

[lgamoy]

不知道你的注释的代码是在哪里写着的。方法应该是没错，可能就是静态函数的问题。

[lgamoy]

提供一个可用的方法。
/// <summary>
/// 读写INI文件
/// </summary>
public class Ini
{
private string fullFileName; //INI文件的完整文件名

[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);

public Ini(string fullFileName)
{
this.fullFileName = fullFileName;
}

public void Write(string section, string key, string val)
{
WritePrivateProfileString(section, key, val, this.fullFileName);
}

public string Read(string Section,string Key)
{
StringBuilder sb = new StringBuilder(1024);
Ini.GetPrivateProfileString(Section, Key, "", sb, 1024, this.fullFileName);

return sb.ToString();
}
}

如此引用：
Ini ini = new Ini(iniFilePath);
ini.Read("Database", "Database");

[rometw]

收藏了

[xlfancy]

一、INI文件读取专用

public class IniFile
{
	/// <summary>
	/// 读取INI文件专用类
	/// </summary>
	private Hashtable iniFile = new Hashtable();

	public int Count { get { return iniFile.Count; } }
	public string this[string IndexKey] { get { return iniFile[IndexKey].ToString(); } }

	/// <summary>
	/// 读取指定INI文件中的配置信息
	/// </summary>
	/// <param name="file">配置文件的完整路径名</param>
	/// <param name="section">配置文件中的节名</param>
	public IniFile(string file, string section)
	{
		string Section = "[" + section + "]";
		LoadIniFile(file, Section);

		//如果SpecialIniFilePath不为空，则从SpecialIniFilePath指定的文件中读取配置信息
		if (iniFile.Count>0 && iniFile.Contains("SpecialIniFilePath"))
		{
			string path = this["SpecialIniFilePath"].Trim();
			if (path != "") LoadIniFile(path, Section);
		}
	}

	private void LoadIniFile(string filePath, string Section)
	{
		try
		{
			StreamReader sr = new StreamReader(filePath, System.Text.Encoding.Default);
			string readLine = null;
			bool readEnd = false;
			string[] keyWord;

			while ((readLine = sr.ReadLine()) != null)
			{
				if (readLine == Section)   //是指定的节，则开始读取配置信息
				{
					while ((readLine = sr.ReadLine()) != null)
					{
						if (readLine != "")   //跳过空行
						{
							if (readLine.Substring(0, 1) == "[")   //是另一新节，则结束本次的读取
							{
								readEnd = true;
								break;
							}

							keyWord = readLine.Split('=');
							iniFile[keyWord[0].Trim()] = keyWord[1];
						}
					}
				}

				if (readEnd == true) break;
			}
			sr.Close();
		}
		catch
		{
			iniFile.Clear();
		}
	}
}

二、INI文件样例

[DBA]
SpecialIniFilePath=

ServerName=kcndgk01
DatabaseName=fhkapp
UserID=07AIQY6Vow5xph2075bjrz7uPX4WOG7767CKS08Tqy3vnf5013dlt19sRZ2UME67
UserPassword=066EMU2Zs91tld929E3fnv3yT80SKC67667GOW4Xu7zrjb49653hpx5wV6YQIA77
Timeout=90

三、使用方法

IniFile ini = new IniFile(System.Windows.Forms.Application.StartupPath + @"\Appcfg.ini", "Appcfg");
if (ini.Count>0)
{
     _server = ini["Server"];
     _database = ini["Database"];
     _uid = ini["UID"];
     _uid = Crypt.RndDecrypt("uid", _uid);   //解密
     _pwd = ini["PWD"];
     _pwd = Crypt.RndDecrypt("pwd", _pwd);   //解密
     _timeout = ini["Timeout"];
}