自定义配置app.config

先要写配置类,然后封装成DLL

代码

namespace  CustomConfig
{
     public     class  DbFactorySection:System.Configuration.ConfigurationSection
    {
        [System.Configuration.ConfigurationProperty( " default " )]
         public  DefaultElement DefaultFactory
        {
             get
            {
                 return   this [ " default " ]  as  DefaultElement;
            }
             set
            {
                 this [ " default " ]  =  value;
            }     
        }
        [System.Configuration.ConfigurationProperty( " factorys " )]
         public  FactoryElements Factorys
        {
             get
            {
                 return   this [ " factorys " ]  as  FactoryElements;
            }
             set
            {
                 this [ " factorys " ]  =  value;
            }
        
        }

    }
}

 

代码

namespace  CustomConfig
{
     public    class  DefaultElement: System.Configuration.ConfigurationElement
    {
        [System.Configuration.ConfigurationProperty( " factory " )]
         public   string  Factory
        {
             get
            {
                 return   this [ " factory " ]  as   string ;
            }
             set
            {
                 this [ " factory " ]  =  value;
            }
        
        }
    }
}

 

 

代码

namespace  CustomConfig
{
     public   class  FactoryElement:System.Configuration.ConfigurationElement
    {
        [System.Configuration.ConfigurationProperty( " name " )]
         public   string  Name
        {
             get
            {
                 return   this [ " name " ]  as   string ;
            }
             set
            {
                 this [ " name " ]  =  value;
            }
        }
        [System.Configuration.ConfigurationProperty( " assembly " )]
         public   string  Assembly
        {
             get
            {
                 return   this [ " assembly " ]  as   string ;
            }
             set
            {
                 this [ " assembly " ]  =  value;
            }
        }
        [System.Configuration.ConfigurationProperty( " class " )]
         public   string  Class
        {
             get
            {
                 return   this [ " class " ]  as   string ;
            }
             set
            {
                 this [ " class " ]  =  value;
            }
        }
           
    }
}

 

 

代码

namespace  CustomConfig
{
     public    class  FactoryElements: System.Configuration.ConfigurationElementCollection
    {
         protected   override  System.Configuration.ConfigurationElement CreateNewElement()
        {
             return   new  FactoryElement();
        }

         protected   override   object  GetElementKey(System.Configuration.ConfigurationElement element)
        {
             return  ((FactoryElement)element).Name;   
        }

         ///   <summary>
         ///  用于在元素集合中指定名字
         ///   </summary>
         ///   <param name="name"></param>
         ///   <returns></returns>
         public  FactoryElement  this [ string  name]
        {
             get
            {
                 return  BaseGet(name)  as  FactoryElement;
            }
        }
    }
}

 

在app.config中加入以下节点:

 

代码

< configuration >
     < configSections >
       < section  name = " dbFactory "  type = " CustomConfig.DbFactorySection,CustomConfig " />
     </ configSections >
   < dbFactory >
     < default  factory = " sql " >
     </ default >
     < factorys >
       < add name = " sql "  assembly = " Hello.Data "   class = " SqlDbFactory " />
       < add name = " oracle "  assembly = " Hello.Data "   class = " OracleDbFactory " />
     </ factorys >
   </ dbFactory >

后台中调用:

 

 DbFactorySection conSection = System.Configuration.ConfigurationManager.GetSection("dbFactory") as CustomConfig.DbFactorySection;

            string strName = conSection.Factorys["sql"].Name.ToString();

可以得到配置节点的信息.

转自:http://www.cnblogs.com/zhaoguihua/archive/2010/01/21/1652847.html