using System.IO;
static void Main()
{
string ServerName = "";//数据库服务器名称
string DBname = "";//数据库名称
string strLine;
int ZeroIndex;
AppPath = Application.StartupPath;
FileInfo YnExist = new FileInfo(AppPath + "\\my.ini");
string pwdstr = "";
//读取系统设置文件,如果系统参数设置不正确,则系统无法启动
if (YnExist.Exists)
{ System.IO.StreamReader SetContent = YnExist.OpenText();
strLine = SetContent.ReadLine();//行读取并读完
while (strLine != null)
{
if (((strLine.Trim()).ToUpper()).StartsWith("SERVERNAME"))
{
ZeroIndex = strLine.IndexOf("=", 0, strLine.Length);
if (ZeroIndex > -1) ServerName = strLine.Substring(ZeroIndex + 1, strLine.Length - ZeroIndex - 1);
}
else if (((strLine.Trim()).ToUpper()).StartsWith("DBNAME"))
{
ZeroIndex = strLine.IndexOf("=", 0, strLine.Length);
if (ZeroIndex > -1) DBname = strLine.Substring(ZeroIndex + 1, strLine.Length - ZeroIndex - 1);
}
else if (((strLine.Trim()).ToUpper()).StartsWith("YNDYPRE"))
{
ZeroIndex = strLine.IndexOf("=", 0, strLine.Length);
if (ZeroIndex > -1) yndypre = strLine.Substring(ZeroIndex + 1, strLine.Length - ZeroIndex - 1).ToUpper();
}
else if (((strLine.Trim()).ToUpper()).StartsWith("PWD"))
{
ZeroIndex = strLine.IndexOf("=", 0, strLine.Length);
if (ZeroIndex > -1) pwdstr = strLine.Substring(ZeroIndex + 1, strLine.Length - ZeroIndex - 1);
}
strLine = SetContent.ReadLine();
}
SetContent.Close();
}
else
{
MessageBox.Show("系统主目录中my文件不正确,无法启动系统!");
return;
}
//将系统设置中数据库信息读入全局变量中Driver={Sybase System 11}"
ConnStr = "Driver={Sybase System 11};uid=sa;db=" + DBname + ";srvr=" + ServerName + ";pwd=" + pwdstr + "";
Conn.ConnectionString = ConnStr;
try
{
Conn.Open();
}
catch (Exception f)
{
MessageBox.Show(f.Message);
//MessageBox.Show("系统SET文件中数据库服务或库名设置不正确,无法启动系统!");
return;
}
userid = "";
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
Mutex mutex = new Mutex(false, "ThisShouldOnlyRunOnce");
//判断互斥体是否使用中。即同一程序不循序启动多个
bool Running = !mutex.WaitOne(0, false);
//判断程序是否启动
if (!Running)
Application.Run(new login());
else
MessageBox.Show("应用程序已经启动!"); if (userid.Trim() != "") Application.Run(new mainfm());
}
static void Main()
{
string ServerName = "";//数据库服务器名称
string DBname = "";//数据库名称
string strLine;
int ZeroIndex;
AppPath = Application.StartupPath;
FileInfo YnExist = new FileInfo(AppPath + "\\my.ini");
string pwdstr = "";
//读取系统设置文件,如果系统参数设置不正确,则系统无法启动
if (YnExist.Exists)
{ System.IO.StreamReader SetContent = YnExist.OpenText();
strLine = SetContent.ReadLine();//行读取并读完
while (strLine != null)
{
if (((strLine.Trim()).ToUpper()).StartsWith("SERVERNAME"))
{
ZeroIndex = strLine.IndexOf("=", 0, strLine.Length);
if (ZeroIndex > -1) ServerName = strLine.Substring(ZeroIndex + 1, strLine.Length - ZeroIndex - 1);
}
else if (((strLine.Trim()).ToUpper()).StartsWith("DBNAME"))
{
ZeroIndex = strLine.IndexOf("=", 0, strLine.Length);
if (ZeroIndex > -1) DBname = strLine.Substring(ZeroIndex + 1, strLine.Length - ZeroIndex - 1);
}
else if (((strLine.Trim()).ToUpper()).StartsWith("YNDYPRE"))
{
ZeroIndex = strLine.IndexOf("=", 0, strLine.Length);
if (ZeroIndex > -1) yndypre = strLine.Substring(ZeroIndex + 1, strLine.Length - ZeroIndex - 1).ToUpper();
}
else if (((strLine.Trim()).ToUpper()).StartsWith("PWD"))
{
ZeroIndex = strLine.IndexOf("=", 0, strLine.Length);
if (ZeroIndex > -1) pwdstr = strLine.Substring(ZeroIndex + 1, strLine.Length - ZeroIndex - 1);
}
strLine = SetContent.ReadLine();
}
SetContent.Close();
}
else
{
MessageBox.Show("系统主目录中my文件不正确,无法启动系统!");
return;
}
//将系统设置中数据库信息读入全局变量中Driver={Sybase System 11}"
ConnStr = "Driver={Sybase System 11};uid=sa;db=" + DBname + ";srvr=" + ServerName + ";pwd=" + pwdstr + "";
Conn.ConnectionString = ConnStr;
try
{
Conn.Open();
}
catch (Exception f)
{
MessageBox.Show(f.Message);
//MessageBox.Show("系统SET文件中数据库服务或库名设置不正确,无法启动系统!");
return;
}
userid = "";
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
Mutex mutex = new Mutex(false, "ThisShouldOnlyRunOnce");
//判断互斥体是否使用中。即同一程序不循序启动多个
bool Running = !mutex.WaitOne(0, false);
//判断程序是否启动
if (!Running)
Application.Run(new login());
else
MessageBox.Show("应用程序已经启动!"); if (userid.Trim() != "") Application.Run(new mainfm());
}
别忘记加上名字空间哦。
using System;
using System.IO;
using System.Runtime.InteropServices;
using System.Text;
namespace Sx_Mdi
{ /// <summary>
/// Summary description for Class1.
/// </summary>
public class IniFile
{
//文件INI名称
public string Path; ////声明读写INI文件的API函数
[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);
//类的构造函数,传递INI文件名
public IniFile(string inipath)
{
//
// TODO: Add constructor logic here
//
Path = inipath;
} //写INI文件
public void IniWriteValue(string Section,string Key,string Value)
{
WritePrivateProfileString(Section,Key,Value,this.Path); } //读取INI文件指定
public string IniReadValue(string Section,string Key)
{
StringBuilder temp = new StringBuilder(255);
int i = GetPrivateProfileString(Section,Key,"",temp,255,this.Path);
return temp.ToString(); }
}
} 操作范例: public static SqlConnection MyConnection()
{
string sPath;
string ServerName,userId,sPwd,DataName; sPath = GetPath();
IniFile ini = new IniFile(sPath);
ServerName = ini.IniReadValue ("Database","server");
userId = ini.IniReadValue ("Database","uid");
sPwd = ini.IniReadValue ("Database","pwd");
DataName = ini.IniReadValue ("Database","database");
string strSql = "server =" + ServerName+";uid ="+ userId +";pwd =;database ="+ DataName;
SqlConnection myConn=new SqlConnection(strSql);
return myConn;
}
using System;
using System.IO;
using System.Runtime.InteropServices;
using System.Text;
using System.Collections;
using System.Collections.Specialized;namespace wuyisky{
/**//**/
/**//// <summary>
/// IniFiles的类
/// </summary>
public class IniFiles
{
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 IniFiles(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))
{ //|| (FileAttributes.Directory in fileInfo.Attributes))
//文件不存在,建立文件
System.IO.StreamWriter sw = new System.IO.StreamWriter(AFileName, false, System.Text.Encoding.Default);
try
{
sw.Write("#表格配置档案");
sw.Close();
}
catch
{
throw (new ApplicationException("Ini文件不存在"));
}
}
//必须是完全路径,不能是相对路径
FileName = fileInfo.FullName;
}
//写INI文件
public void WriteString(string Section, string Ident, string Value)
{
if (!WritePrivateProfileString(Section, Ident, Value, FileName))
{throw (new ApplicationException("写Ini文件出错"));
}
}
//读取INI文件指定
public string ReadString(string Section, string Ident, string Default)
{
Byte[] Buffer = new Byte[65535];
int bufLen = GetPrivateProfileString(Section, Ident, Default, 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
public int ReadInteger(string Section, string Ident, int Default)
{
string intStr = ReadString(Section, Ident, Convert.ToString(Default));
try
{
return Convert.ToInt32(intStr);
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
return Default;
}
}//写整数
public void WriteInteger(string Section, string Ident, int Value)
{
WriteString(Section, Ident, Value.ToString());
}//读布尔
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;
}
}//写Bool
public void WriteBool(string Section, string Ident, bool Value)
{
WriteString(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
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
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
public void ReadSectionValues(string Section, NameValueCollection Values)
{
StringCollection KeyList = new StringCollection();
ReadSection(Section, KeyList);
Values.Clear();
foreach (string key in KeyList)
{
Values.Add(key, ReadString(Section, key, ""));}
}
/**/////读取指定的Section的所有Value到列表中,
//public void ReadSectionValues(string Section, NameValueCollection Values,char splitString)
//{ string sectionValue;
// string[] sectionValueSplit;
// StringCollection KeyList = new StringCollection();
// ReadSection(Section, KeyList);
// Values.Clear();
// foreach (string key in KeyList)
// {
// sectionValue=ReadString(Section, key, "");
// sectionValueSplit=sectionValue.Split(splitString);
// Values.Add(key, sectionValueSplit[0].ToString(),sectionValueSplit[1].ToString());// }
//}
//清除某个Section
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
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
~IniFiles()
{
UpdateFile();
}
}
}
By Alvaro Mendez
http://www.codeproject.com/KB/cs/readwritexmlini.aspx