自定义配置文件的使用

经常在使用APP.CONFIG 或WEB.CONFIG

时，发现系统中的配置无法满足自己的需求。这时就需要自定义的配置文件处理：

现需要在配置文件中定义可增加删除任务的功能。可根据需要增加一个或删除任务。

定义配置节点

    /// <summary>

    /// MRP自定义配置类

    /// </summary>

    public class MRPSection : ConfigurationSection

    {

        /// <summary>

        /// Gets the tasks.

        /// </summary>

        /// <value>The tasks.</value>

        [ConfigurationProperty("", IsDefaultCollection = true)]

        public TaskCollectionElement Tasks

        {

            get { return (TaskCollectionElement)this[""]; }

        } 

    } 

配置集合

    /// <summary>

    /// 任务集合

    /// </summary>

    public class TaskCollectionElement : ConfigurationElementCollection

    {

        protected override ConfigurationElement CreateNewElement()

        {

            return new TaskElement();

        }



        protected override object GetElementKey(ConfigurationElement element)

        {

            return ((TaskElement)element).CompanyID;

        }



        public override ConfigurationElementCollectionType CollectionType

        {

            get { return ConfigurationElementCollectionType.BasicMap; }

        }



        protected override string ElementName

        {

            get { return "Task"; }

        }



        public TaskElement this[int index]

        {

            get { return (TaskElement)BaseGet(index); }

            set

            {

                if (BaseGet(index) != null)

                {

                    BaseRemoveAt(index);

                }

                BaseAdd(index, value);

            }

        }

    } 

定义任务类

    public class TaskElement : ConfigurationElement

    {

        [ConfigurationProperty("CompanyID", IsRequired = true)]

        public string CompanyID

        {

            get { return (string)base["CompanyID"]; }

        }



        [ConfigurationProperty("DatabaseName", IsRequired = true)]

        //[RegexStringValidator(可以在这里用正则验证配置文件中的值是否正确)]

        public string DatabaseName

        {

            get { return this["DatabaseName"] as string; }

        }



        [ConfigurationProperty("Level", IsRequired = true)]

        public string Level

        {

            get { return this["Level"] as string; }

        }


        [ConfigurationProperty("AppIP", IsRequired = true)]

        public string AppIP

        { get { return this["AppIP"].ToString(); } }





        [ConfigurationProperty("AppName", IsRequired = true)]

        public string AppName

        { get { return this["AppName"].ToString(); } }

    }

配置文件如下

<?xml version="1.0" encoding="utf-8" ?>

<configuration>

  <configSections>

    <section name="MRPSetting"  type="MRP.MRPSection,MRP"/>

  </configSections>  

   <MRPSetting >

    <Task CompanyID="e1" DatabaseName="e1" Level="2" AppIP="192.168.1.1" AppName="host"/>

    <Task CompanyID="e2" DatabaseName="e2" Level="3" AppIP="192.168.1.1" AppName="host"/>

    <Task CompanyID="e3" DatabaseName="e3" Level="1"  AppIP="192.168.1.1" AppName="host"/>

   </MRPSetting>  

</configuration>

如何访问：

 MRPSection mrpsetting = (MRPSection)ConfigurationManager.GetSection("MRPSetting");



 foreach (TaskElement task in mrpsetting.Tasks)

            { Console.WriteLine(task.CompanyID); }

 ----------------------------------------------------------------------------------------------------------------------------------------------------------

若自定义的节点不需要集合类,则只需要如下定义即可

    public class TaskSection : ConfigurationSection

    {

        [ConfigurationProperty("CompanyID", IsRequired = true)]

        public string CompanyID

        {

            get { return (string)base["CompanyID"]; }

        }



        [ConfigurationProperty("DatabaseName", IsRequired = true)]

        //[RegexStringValidator(可以在这里用正则验证配置文件中的值是否正确)]

        public string DatabaseName

        {

            get { return this["DatabaseName"] as string; }

        }



        [ConfigurationProperty("Level", IsRequired = true)]

        public string Level

        {

            get { return this["Level"] as string; }

        }

 



        [ConfigurationProperty("AppIP", IsRequired = true)]

        public string AppIP

        { get { return this["AppIP"].ToString(); } }





        [ConfigurationProperty("AppName", IsRequired = true)]

        public string AppName

        { get { return this["AppName"].ToString(); } }

    }

<?xml version="1.0" encoding="utf-8" ?>

<configuration>

  <configSections>

    <section name="Task"  type="MRPAutoRun.TaskSection,MRPAutoRun"/>

  </configSections>

 

    <Task CompanyID="e1" DatabaseName="e1" Level="24" AppIP="192.168.1.1" AppName="host"/>     

</configuration>

此Task节点不可以重复，否则系统运行通不过。