WPF Handwriting Code configuration file--Singleton

    Public classSettinghelper {//WPF under Configuration file path         Public Static ReadOnly stringSettingfilepath = AppDomain.CurrentDomain.BaseDirectory +"\\Setting.ini"; Private Static classInstance {Internal Static ReadOnlySettinghelper Setting =NewSettinghelper (); }        PrivateSettinghelper () {} Public StaticSettinghelper getinstance () {returninstance.setting; }        #regionAPI function Declaration[DllImport ("kernel32")]//returns 0 indicates failure, not 0 for success        Private Static extern LongWritePrivateProfileString (stringSectionstringKeystringValstringFilePath); [DllImport ("kernel32")]//returns the length of the Get string buffer        Private Static extern LongGetPrivateProfileString (stringSectionstringKeystringDef, StringBuilder RetVal,intSizestringFilePath); #endregion        #regionRead INI file Public stringReadinidata (stringSectionstringkey) {            returnReadinidata (section, Key,string.        Empty); }         Public stringReadinidata (stringSectionstringKeystringDefaultValue) {            if(File.exists (Settingfilepath)) {StringBuilder s=NewStringBuilder (1024x768); GetPrivateProfileString (section, key, DefaultValue, S,1024x768, Settingfilepath); returns.tostring (); }            Else            {                returnString.Empty; }        }        #endregion         Public BOOLWriteinidata (stringSectionstringKeystringvalue) {            if(File.exists (Settingfilepath)) {LongOpstation =writeprivateprofilestring (section, key, value, Settingfilepath); if(Opstation = =0)                {                    return false; }                Else                {                    return true; }            }            Else            {                return false; }        }        Private stringwindowState;  PublicWindowState WindowState {Get            {                if(string. Isnullorwhitespace (windowState)) {Settinghelper St=settinghelper.getinstance (); WindowState= St. Readinidata ("WPF","WindowState"); }                if(string. Isnullorwhitespace (windowState)) {windowState= ((int) (System.Windows.WindowState.Normal).                ToString (); }                return(WindowState) Convert.ToInt32 (WindowState); }            Set{windowState= ((int) value).                ToString (); Settinghelper St=settinghelper.getinstance (); St. Writeinidata ("WPF","WindowState", windowState); }        }        Private stringLeft ;  Public DoubleLeft {Get            {                if(string. Isnullorwhitespace (left)) {Settinghelper St=settinghelper.getinstance (); Left= St. Readinidata ("WPF"," Left"); }                if(string. Isnullorwhitespace (left)} { Left=" -"; }                returnconvert.todouble (left); }            Set{ Left=value.                ToString (); Settinghelper St=settinghelper.getinstance (); St. Writeinidata ("WPF"," Left", left); }        }        Private stringtop;  Public DoubleTop {Get            {                if(string. Isnullorwhitespace (top)) {Settinghelper St=settinghelper.getinstance (); Top= St. Readinidata ("WPF","Top"); }                if(string. Isnullorwhitespace (top) {top )=" -"; }                returnconvert.todouble (top); }            Set{Top=value.                ToString (); Settinghelper St=settinghelper.getinstance (); St. Writeinidata ("WPF","Top", top); }        }    }

WPF Handwriting Code configuration file--Singleton