App. Config configures multiple configuration sets custom configuration (3)

Again, use app. Config to configure multiple custom methods.
Let's look at this example: American Family Simpson has a father and a mother and three children, while the Chinese old king has only one child. The structure is as follows:

<?xml version= "1.0" encoding= "Utf-8"?><configuration> <configSections> <sectiongroup type= " Family.sectiongroups,family "name=" Family "> <section name=" Simpson "type=" Family.Simpson.FamilySection, Family "allowdefinition=" Everywhere "/> <section name=" Wang "type=" family.wang.wangsection,family " allowdefinition= "Everywhere"/> </sectionGroup> </configSections> <family> <simpson surname= "Simpson" > <father firstname= "James" lastname= "Simpson"/> <mother firstname= "Kate" lastname= "Simpson"/&    Gt <children > <add firstname= "Jim" lastname= "Simpson"/> <add firstname= "Aaron" lastname= "Simpson"/&      Gt <add firstname= "Lukas" lastname= "Simpson"/> </children> </simpson> <wang surname= "King" > <father firstname= "Wang" lastname= "two small"/> <mother firstname= "li" lastname= "Feifei"/> <child firstName = "Wang" lastname= "bo"/> &LT;/WANG&GT </family> </configuration>

　　

The implementation of each section and ConfigurationElementCollection is described in the previous article. Not posted here.
Attention Lao Wang American Family difference is: Lao Wang home because only child, so there is no children, only a child property.

Add a Sectiongroups class that inherits from System.Configuration.ConfigurationSectionGroup.

In this sectiongroups class and configuration file, the following sentence

<sectiongroup type= "family.sectiongroups,family" name= "Family" >
This sentence is the corresponding,
"Family.sectiongroups" namespace + class name, Family for assembly; Name= "Fanmily" is the name of the configuration node.

Class SectionGroups:System.Configuration.ConfigurationSectionGroup    {public        Family.Wang.WangSection Wang        {            get {return (Family.Wang.WangSection) base. sections["Wang"]; }        } public        Family.Simpson.FamilySection Simpson        {            get {return (Family.Simpson.FamilySection) base. sections["Simpson"]; }        }    }

Test Code 1

Sectiongroups sample = (sectiongroups) System.Configuration.ConfigurationManager.OpenExeConfiguration ( System.Configuration.ConfigurationUserLevel.None). sectiongroups["Family"];            Family.Wang.WangSection w = Sample. Wang;            Father f= W.father;            Mother m = w.mother;            Child C = w.child;            Family.Simpson.FamilySection s = Sample. Simpson;            Do-to-  s.father; s.mother;s.children

Test code 2, or you can use this:

Family.Wang.WangSection w = configurationmanager.openexeconfiguration (Configurationuserlevel.none). GetSection ("Family/wang") as Family.Wang.WangSection;

Test code 3, that's fine.

 System.Configuration.Configuration config = configurationmanager.openexeconfiguration (configurationuserlevel.none            ); Configurationsectiongroupcollection sectiongroups = config.            sectiongroups; foreach (ConfigurationSectionGroup sectiongroup in sectiongroups) {foreach (configurationsectio N sections in sectiongroup.sections)//There are many other default nodes {if (section. Sectioninformation.name = = "Wang") {Family.Wang.WangSection Wang = section as F Amily.                        Wang.wangsection; Console.WriteLine ("Father:" + Wang.) Father.firstname + "" + Wang.                        Father.lastname); Console.WriteLine ("Mother:" + Wang.) Mother.firstname + "" + Wang.                    Mother.lastname); } if (section. Sectioninformation.name = = "Simpson") {Family.Simpson.FamilySection Simpson = s Ection as Family.Simpson.FamilySectiOn Console.WriteLine ("Father:" + Simpson. Father.firstname + "" + Simpson.                        Father.lastname); Console.WriteLine ("Mother:" + Simpson. Mother.firstname + "" + Simpson.                        Mother.lastname); foreach (Family.simpson. Child child in Simpson. Children) {Console.WriteLine ("Child:" + child.) FirstName + "" + Child.                        LastName); }                    }                }            }

　　

Note: In the top app. config file, I began to forget the <family></family> tags, resulting in the read out of the data is always empty, wasted my 2 hours.

App. Config configures multiple configuration sets custom configuration (3)