Configuration file-related

. The read and write of the config file in the. NET application requires reference to System.Configuration, which requires System.ServiceModel.Configuration to read the WCF-related configuration.

One, Custom ConfigurationSection

Inherit the ConfigurationSection and use the label ConfigurationProperty for each member. Isrequired=true indicates that a value must be assigned, otherwise an exception is returned. Set default values through DefaultValue.

Namespace consoleapplication2{    class program    {        static void Main (string[] args)        {            Configuration Configuration = Configurationmanager.openexeconfiguration (Configurationuserlevel.none);            Testsection test = (testsection) configuration. GetSection ("Testsection");            Console.WriteLine ("Testsection:name={0} datetime={1}", Test. Name, test.datetime);        }    }    public class testsection:configurationsection    {         [ConfigurationProperty ("Name", Isrequired=true, Defaultvalue= "Testsection")] public        string Name        {            get {return (string) base["name"];        } [ConfigurationProperty ("datetime")]        public datetime datetime        {            get {return (datetime) base["datetime"];}        }    }

Content in app. config:

Custom sections need to be declared in configsections, note the type of the section, which is "assembly (namespace) + class name, assembly (namespace)"

<?xml version= "1.0" encoding= "Utf-8"?><configuration>  <configSections>    <section Name = "Testsection" type= "Consoleapplication2.testsection,consoleapplication2"/>  </configSections>  <testsection name= "test1" datetime= "2015-08-06 13:26:00"/></configuration>

Second, custom ConfigurationElement

The above just adds the attributes in Testsection, and now continues to add elements to testsection. Element inherits from ConfigurationElement.

Namespace consoleapplication2{class Program {static void Main (string[] args) {Configurat            Ion configuration = Configurationmanager.openexeconfiguration (Configurationuserlevel.none); Testsection test = (testsection) configuration.            GetSection ("Testsection"); Console.WriteLine ("Testsection:name={0} datetime={1}", Test.            Name, Test.datetime);        Console.WriteLine ("\telement:elementname={0}", Test.element.ElementName);        }} public class Testsection:configurationsection {[ConfigurationProperty ("Name", Isrequired=true)]        public string Name {get {return (string) base["name"];}            } [ConfigurationProperty ("datetime", Defaultvalue=datetime.now)] public datetime datetime {        get {return (datetime) base["datetime"];} } [ConfigurationProperty ("Testelement")] public testelement element {get {return (Testel ement) base["TEstelement "]; }}} public class Testelement:configurationelement {[ConfigurationProperty ("ElementName", Isreq        Uired = True)] public string ElementName {get {return (string) base["ElementName"];} }    }}

App.

<?xml version= "1.0" encoding= "Utf-8"?><configuration>  <configSections>    <section Name = "Testsection" type= "Consoleapplication2.testsection,consoleapplication2"/>  </configSections>  <testsection name= "test1" datetime= "2015-08-06 13:26:00" >    <testelement elementname= "ElementName"/>  </testSection></configuration>

Third, custom ConfigurationSectionGroup

Namespace consoleapplication2{class Program {static void Main (string[] args) {Configurat            Ion configuration = Configurationmanager.openexeconfiguration (Configurationuserlevel.none); MyGroup test = (mygroup) configuration.            Getsectiongroup ("MyGroup");            Testsection test1 =test.testsection;            TestSection2 test2 = Test.testsection2; Console.WriteLine ("Test1:name={0} Datetime={1}", Test1.            Name, Test1.datetime);            Console.WriteLine ("\telement:elementname={0}", Test1.element.ElementName); Console.WriteLine ("\test2:name={0}", Test2.        Name); }} public class Mygroup:configurationsectiongroup {[ConfigurationProperty ("testsection", isrequired = true)] public testsection testsection {get {return (testsection) base. sections["Testsection"];      }} [ConfigurationProperty ("TestSection2", IsRequired = True)] public testSection2 TestSection2  {get {return (TestSection2) base. sections["TestSection2"]; }}} public class Testsection:configurationsection {[ConfigurationProperty ("Name", isrequired=tr        UE)] public string name {get {return (string) base["name"];} } [ConfigurationProperty ("datetime")] public datetime datetime {get {return (datetime) BA Se["datetime"]; }} [ConfigurationProperty ("Testelement")] public testelement element {get {retur N (testelement) base["Testelement"]; }}} public class Testsection2:configurationsection {[ConfigurationProperty ("Name", isrequired        = True)] public string name {get {return (string) base["name"];} }} public class Testelement:configurationelement {[ConfigurationProperty ("elementname", isrequired = t Rue)] public string ElementName {get {return (string) base["ElementName"]; }        }    }}

App.

<?xml version= "1.0" encoding= "Utf-8"?><configuration>  <configSections>    < Sectiongroup name= "MyGroup" type= "Consoleapplication2.mygroup,consoleapplication2" >      <section name= " Testsection "type=" Consoleapplication2.testsection,consoleapplication2 "/>      <section name=" TestSection2 " Type= "Consoleapplication2.testsection2,consoleapplication2"/>    </sectionGroup>  </ configsections>  <mygroup>    <testsection name= "test1" datetime= "2015-08-06 13:26:00" >      <testelement elementname= "elementname"/>    </testSection>    <testsection2 name= "Test2"/>  </mygroup></configuration>

Iv. Custom Configurationsectioncollection

Namespace consoleapplication2{class Program {static void Main (string[] args) {Configurat            Ion configuration = Configurationmanager.openexeconfiguration (Configurationuserlevel.none); MySection mysection = (mysection) configuration.                      GetSection ("MySection"); foreach (Mykevvalue kv in mysection.collection) {Console.WriteLine (kv). Key + "" + kv.            Value);        }}} public class Mysection:configurationsection {[ConfigurationProperty ("mycollection")]        Public mycollection Collection {get {return (mycollection) base["mycollection"];} }} [Configurationcollection (typeof (Mykevvalue), CollectionType = Configurationelementcollectiontype.addremoveclear             MAP)] public class Mycollection:configurationelementcollection {public Mykevvalue This[int index] { get {return (Mykevvalue) base. Baseget (index);  } set          {if (null! = base.) Baseget (Index)) {base.                Baseremoveat (index); } base.            Baseadd (Index,value); }} public Mykevvalue this[string index] {get {return (Mykevvalue) base. Baseget (index);        }} protected override ConfigurationElement Createnewelement () {return new Mykevvalue (); } protected Override Object Getelementkey (configurationelement Element) {return (element As Mykevvalue).        Key; }} public class Mykevvalue:configurationelement {[ConfigurationProperty (' Key ')] public string K        EY {get {return (string) base["Key"];} } [ConfigurationProperty ("Value")] public string Value {get {return (string) base[ "Value"]; }        }    }

App.

<?xml version= "1.0" encoding= "Utf-8"?><configuration>  <configSections>      <section Name = "MySection" type= "Consoleapplication2.mysection,consoleapplication2"/>  </configSections>  < mysection>    <myCollection>      <add key= "Key1" value= "Value1"/>      <add key= "Key2" value= " Value2 "/>      <add key=" Key3 "value=" Value3 "/>    </myCollection>  </mysection></ Configuration>

Five, the MyCollection field of the configuration file in the four need add, actually can use Mykevvalue directly. The code in the four is slightly modified as follows:

    [Configurationcollection (typeof (Mykevvalue), additemname = "Mykevvalue", CollectionType = CONFIGURATIONELEMENTCOLLECTIONTYPE.ADDREMOVECLEARMAP)] public    class mycollection: ConfigurationElementCollection    {       //omitted ...        protected override string ElementName        {            get            {                return ' Mykevvalue ';}}    }

App. Config:

<?xml version= "1.0" encoding= "Utf-8"?><configuration>  <configSections>      <section Name= "MySection" type= "Consoleapplication2.mysection,consoleapplication2"/>  </configSections>  <mySection>    <myCollection>      <mykevvalue key= "Key1" value= "Value1"/>      < Mykevvalue key= "Key2" value= "Value2"/>      <mykevvalue key= "Key3" value= "Value3"/>    </ Mycollection>  </mySection></configuration>

Six, read appsettings

Class program    {        static void Main (string[] args)        {            Configuration configuration = Configurationmanager.openexeconfiguration (configurationuserlevel.none);            Appsettingssection appsettingssection = (appsettingssection) configuration. GetSection ("appSettings");            foreach (String kv in AppSettingsSection.Settings.AllKeys)            {                Console.WriteLine ("Key={0} Value={1}", KV, APPSETTINGSSECTION.SETTINGS[KV]. Value);}}}    

<?xml version= "1.0" encoding= "Utf-8"?><configuration>  <appSettings>    <add key= "Key1 "Value=" value1 "/>    <add key=" Key2 "value=" value1 "/>    <add key=" Key3 "value=" Value3 "/>  </appSettings></configuration>

Seven, read system. Configuration in the ServiceModel

         has the following WCF configuration file:

<?xml version= "1.0" encoding= "Utf-8"?><configuration> <system.serviceModel> <behaviors> <serviceBehaviors> <behavior name= "Mex" > <servicemetadata httpgetenabled= "true" httpgeturl= "Http://localhost/mex"/> </behavior> </serviceBehaviors> </behaviors> <bindings&      Gt <ws2007HttpBinding> <binding name= "2007Binding" > <security mode= "None"/> </bin ding> </ws2007HttpBinding> </bindings> <services> <service name= "Service1" Beh Aviorconfiguration= "Mex" > <endpoint address= "http://localhost:8888" binding = "Wshttpbinding" contract= "IREADF        Ile "/> <endpoint address=" net.tcp://localhost:9999 "binding=" nettcpbinding "contract=" IReadFile "/> <endpoint address= "http://localhost:2007" binding= "ws2007httpbinding" bindingconfiguration= "2007Binding"    contract= "Ireadfile"/>  </service> </services> </system.serviceModel></configuration> 

  Read the code as follows:

  static void Main (string[] args) {console.windowwidth = 170;            Configuration configuration = Configurationmanager.openexeconfiguration (Configurationuserlevel.none); Servicemodelsectiongroup servicemodelsection = (servicemodelsectiongroup) configuration.            Getsectiongroup ("System.ServiceModel");                foreach (Servicebehaviorelement serbehaviorele in serviceModelSection.Behaviors.ServiceBehaviors) {                Servicemetadatapublishingelement metadate = (servicemetadatapublishingelement) serbehaviorele.elementat (0);                Console.WriteLine ("<behavior name=\" {0}\ ">", Serbehaviorele.name); Console.WriteLine ("<{0} httpgetenabled=\" {1}\ "httpgeturl=\" {2}\ "/>", metadate. Behaviortype.name, Metadate. Httpgetenabled, Metadate.                Httpgeturl);            Console.WriteLine ("</behavior>"); } ws2007httpbindingcollectionelement Bindingele = ServiceModelSection.Bindings.WS2007HttpBinding            Ws2007httpbindingelement Ws2007bindingele = (ws2007httpbindingelement) bindingele.configuredbindings[0]; Console.WriteLine ("<binding name=\" {0}\ ">", Bindingele.configuredbindings[0].            Name);            Console.WriteLine ("<security mode=\" {0}\ "/>", Ws2007BindingEle.Security.Mode);            Console.WriteLine ("<security>"); foreach (serviceelement service in serviceModelSection.Services.Services) {Console.WriteLine ("& Lt;service name=\ "{0}\" behaviorconfiguration=\ "{1}\" > ", Service. Name, service.                behaviorconfiguration); foreach (Serviceendpointelement endpointele in service. Endpoints) {Console.WriteLine ("<endpoint address=\" {0}\ "binding =\" {1}\ "Bindingcon Figuration=\ "{2}\" contract=\ "{3}\"/> ", endpointele.address, Endpointele.binding, endpointele.b                Indingconfiguration, endpointele.contract);     }            }   } 

Configuration file-related