Create a custom configsection in Web. config or app. config file

Config file:

<?XML version= "1.0" encoding= "Utf-8"?><Configuration>  <configsections>    < Sectionname= "Filedepend"type= "Testconsole.filedepend,testconsole"/>  </configsections>  <Filedepend>    <RootDirPath= "c \"></RootDir>    < Public>      <elementfile= "/1.txt"></element>      <elementfile= "/2.txt"></element>    </ Public>    <Modules>      <Modulename= "Legend">        <elementfile= "/3.txt"></element>        <elementfile= "/4.txt"></element>      </Module>      <Modulename= "Bookmark">        <elementfile= "/5.txt"></element>        <elementfile= "/6.txt"></element>      </Module>    </Modules>  </Filedepend>  <Startup>    <supportedruntimeversion= "v4.0"SKU=". netframework,version=v4.6 " />  </Startup></Configuration>

FileDepend.cs

usingSystem;usingSystem.Collections.Generic;usingSystem.Configuration;usingSystem.Linq;namespacetestconsole{ Public classfiledepend:configurationsection {[ConfigurationProperty ("RootDir")]        PrivateRootdirelement _rootdir = (rootdirelement)Base["RootDir"]; [ConfigurationProperty (" Public")]        PrivateFilescollection publicfilescollection = ((filescollection) (Base[" Public"]));  Public stringRootDir =_rootdir.name; [ConfigurationProperty ("Modules")]         PublicModulescollection modulescollection = ((modulescollection) (Base["Modules"]));  Publicienumerable<string> publicfiles = fromFileelement VinchPublicfilescollectionSelectV.name; }     Public classrootdirelement:configurationelement {[ConfigurationProperty ("Path", DefaultValue ="", IsKey =true, isrequired =true)]         Public stringName = (string)Base["Path"]; }     Public classfileelement:configurationelement {[ConfigurationProperty ("file", DefaultValue ="", IsKey =true, isrequired =true)]         Public stringName = (string)Base["file"]; }     Public classmoduleelement:configurationelement {[ConfigurationProperty ("name", DefaultValue ="", IsKey =true, isrequired =true)]         Public stringName {Get{return(string)Base["name"]; }            Set{Base["name"] =value;} } [ConfigurationProperty ("", isdefaultcollection =true)]        PrivateFilescollection Element = (filescollection)Base[""];  Publicienumerable<string> Files = fromFileelement fileinchElementSelectfile.    Name; } [Configurationcollection (typeof(moduleelement))]  Public classfilescollection:configurationelementcollection {Internal Const stringPropertyName ="element";  Public OverrideConfigurationelementcollectiontype CollectionType =configurationelementcollectiontype.basicmapalternate; protected Override stringElementName =PropertyName; protected Override BOOLIselementname (stringelementname) {            returnelementname.equals (PropertyName, Stringcomparison.invariantcultureignorecase); }         Public Override BOOLisreadonly () {return false; }        protected Overrideconfigurationelement createnewelement () {return Newfileelement (); }        protected Override ObjectGetelementkey (configurationelement element) {return( (Fileelement) (Element)).        Name; }         PublicFileelement This[intIDX] =(fileelement) baseget (IDX);  Public NewFileelement This[stringIDX] =(fileelement) baseget (IDX); } [Configurationcollection (typeof(moduleelement))]  Public classmodulescollection:configurationelementcollection {Internal Const stringPropertyName ="Module";  Public OverrideConfigurationelementcollectiontype CollectionType =configurationelementcollectiontype.basicmapalternate; protected Override stringElementName =PropertyName; protected Override BOOLIselementname (stringelementname) {            returnelementname.equals (PropertyName, Stringcomparison.invariantcultureignorecase); }         Public Override BOOLisreadonly () {return false; }        protected Overrideconfigurationelement createnewelement () {return Newmoduleelement (); }        protected Override ObjectGetelementkey (configurationelement element) {return( (Moduleelement) (Element)).        Name; }         PublicModuleelement This[intIDX] =(moduleelement) baseget (IDX);  Public NewModuleelement This[stringIDX] =(moduleelement) baseget (IDX); }}

Run

Static voidMain (string[] args) {            varv = configurationmanager.getsection ("Filedepend") asFiledepend; varRootDir =V.rootdir; varPublicfiles =V.publicfiles; varLegendfiles = v.modulescollection["legend"].            Files;            Console.WriteLine (RootDir); Publicfiles.tolist ().            ForEach (Console.WriteLine); Legendfiles.tolist ().            ForEach (Console.WriteLine);        Console.ReadLine (); }

Create a custom configsection in Web. config or app. config file