在app.config或web.config中配置自定义的节点时
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[已解决问题]
解决于 2015-10-30 17:30
如何做到像内置的节点一样有提示？
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最佳答案
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这个其实利用的是XSD文件，就是用XML Schema来描述XML结构,这里使用xsd来描述.config文件，在visual studio安装目录下\Xml\Schemas下面就是这些XSD文件，找到DotNetConfig40.xsd（.net 4.0）打开，你会发现appSettings、connectionStrings这些熟悉的节点，下面给个例子：
1.首先，自定义节点，如下：
namespace MidwareWatcherService.Config { /// <summary> /// 受守护进程配置节点 /// </summary> public sealed class WatcherConfigurationSection : ConfigurationSection { [ConfigurationProperty("processes", IsDefaultCollection = true)] public ProcessElementCollection Processes { get { return (ProcessElementCollection)this["processes"]; } set { this["processes"] = value; } } } /// <summary> /// 进程配置元素集合 /// </summary> public sealed class ProcessElementCollection : ConfigurationElementCollection { protected override ConfigurationElement CreateNewElement() { return new ProcessConfigurationElement(); } protected override object GetElementKey(ConfigurationElement element) { return ((ProcessConfigurationElement)element).ID; } protected override string ElementName { get { return "process"; } } public override ConfigurationElementCollectionType CollectionType { get { return ConfigurationElementCollectionType.BasicMap; } } public ProcessConfigurationElement this[int index] { get { return (ProcessConfigurationElement)BaseGet(index); } set { if (BaseGet(index) != null) BaseRemoveAt(index); BaseAdd(index, value); } } } /// <summary> /// 进程配置元素 /// </summary> public sealed class ProcessConfigurationElement : ConfigurationElement { /// <summary> /// 进程ID /// </summary> [ConfigurationProperty("id", IsKey = true, IsRequired = true)] public string ID { get { return (this["id"] ?? "").ToString(); } set { this["id"] = value; } } /// <summary> /// 进程名 /// </summary> [ConfigurationProperty("name", IsRequired = true)] public string Name { get { return (this["name"] ?? "").ToString(); } set { this["name"] = value; } } /// <summary> /// 进程路径 /// </summary> [ConfigurationProperty("path", IsRequired = true)] public string Path { get { return (this["path"] ?? "").ToString(); } set { this["path"] = value; } } /// <summary> /// 进程类型 /// </summary> [ConfigurationProperty("type",DefaultValue = ProcessType.Normal, IsRequired = true),ProcessEnumValidator(typeof(ProcessTypeHelper))] public ProcessType Type { get { ProcessType _type; if (Enum.TryParse<ProcessType>(this["type"].ToString(), true, out _type)) return _type; else return ProcessType.Normal; } set { this["type"] = value; } } /// <summary> /// 服务地址 /// </summary> [ConfigurationProperty("serviceUri")] public string ServiceUri { get { return (this["serviceUri"] ?? "").ToString(); } set { this["serviceUri"] = value; } } /// <summary> /// 重启时间间隔 /// </summary> [ConfigurationProperty("restartInterval", DefaultValue = "00:00:00")] public TimeSpan RestartInterval { get { return (TimeSpan)this["restartInterval"]; } set { this["restartInterval"] = value; } } /// <summary> /// 重启时间，默认为凌晨2点 /// </summary> [ConfigurationProperty("restartTime",DefaultValue="02:00:00")] public TimeSpan RestartTime { get { return (TimeSpan)this["restartTime"]; } set { this["restartTime"] = value; } } /// <summary> /// 是否启用 /// </summary> [ConfigurationProperty("isEnabled", DefaultValue = true)] public bool IsEnabled { get { return (bool)this["isEnabled"]; } set { this["isEnabled"] = value; } } } /// <summary> /// 进程类型 /// </summary> public enum ProcessType { Normal, WCF } }
2.然后，添加一个xml架构文件（.xsd），如下：
<?xml version="1.0" encoding="utf-8"?> <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:vs="http://schemas.microsoft.com/Visual-Studio-Intellisense" elementFormDefault="qualified" attributeFormDefault="unqualified" vs:helpNamespace="http://schemas.microsoft.com/.NetConfiguration/v2.0"> <xs:simpleType name="enum_ProcessType"> <xs:restriction base="xs:NMTOKEN"> <xs:enumeration value="Normal" /> <xs:enumeration value="WCF" /> </xs:restriction> </xs:simpleType> <xs:simpleType name="timespan_Type"> <xs:restriction base="xs:string"> <xs:pattern value="([0-9.]+:){0,1}([0-9]+:){0,1}[0-9.]+" /> </xs:restriction> </xs:simpleType> <xs:element name="processes"> <xs:complexType> <xs:choice minOccurs="0" maxOccurs="unbounded"> <xs:element name="process"> <xs:complexType> <xs:attribute name="id" type="xs:int" use="required"/> <xs:attribute name="name" type="xs:string" use="required"/> <xs:attribute name="path" type="xs:string" use="required" /> <xs:attribute name="type" type="enum_ProcessType" use="optional" /> <xs:attribute name="serviceUri" type="xs:string" use="optional" /> <xs:attribute name="restartInterval" type="timespan_Type" use="optional" /> <xs:attribute name="restartTime" type="xs:time" use="optional" /> <xs:attribute name="isEnabled" type="boolean_Type" use="optional" /> </xs:complexType> </xs:element> </xs:choice> </xs:complexType> </xs:element> </xs:schema>
3.然后，应用xsd文件。在vs中打开.config文件，VS菜单--XML--架构--添加自己创建的xsd--确定
4.最后，在.config文件中应用自定义节点，发现有提示了，如下图：
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