Custom ConfigurationSection-优快云博客

本文介绍了一个使用.NET框架中ConfigurationSection进行配置文件管理的具体案例。通过定义自定义配置节，可以方便地在应用程序中读取配置信息，并实现对特定配置元素的操作。

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1 <? xml version = " 1.0 " encoding = " utf-8 " ?>
2 < configuration >
3    < configSections >
4      < section name = " PublishGeneralMessageRQTransformerConfiguration " type = " ConsoleApplication5.PublishGeneralMessageRQTransformerEventSection, ConsoleApplication5 " />
5    </ configSections >
6    < PublishGeneralMessageRQTransformerConfiguration >
7      < eventItems >
8        < add EventCode = " EventA " ActionCode = " ActionCodeA " Category = " CategoryA " IsRetrieveGUIData = " false " />
9        < add EventCode = " EventB " ActionCode = " ActionCodeB " Category = " CategoryB " IsRetrieveGUIData = " true " />
10        < add EventCode = " EventC " ActionCode = " ActionCodeC " Category = " CategoryC " IsRetrieveGUIData = " true " />
11        < add EventCode = " EventD " ActionCode = " ActionCodeD " Category = " CategoryD " IsRetrieveGUIData = " true " />
12      </ eventItems >
13    </ PublishGeneralMessageRQTransformerConfiguration >
14 </ configuration >

  1 using System;
  2 using System.Collections.Generic;
  3 using System.Linq;
  4 using System.Text;
  5 using System.Configuration;
  6
  7 namespace ConsoleApplication5
  8 {
  9      class Program
10     {
11          static void Main( string [] args)
12         {
13 //             var element = PublishGeneralMessageRQTransformerConfigHelper.GetElement("EventA");
14
15              foreach (EventConfigElement element in PublishGeneralMessageRQTransformerConfigHelper.GetElements())
16             {
17                 Console.WriteLine(element.EventCode);
18                 Console.WriteLine(element.ActionCode);
19                 Console.WriteLine(element.Category);
20                 Console.WriteLine(element.IsRetrieveGUIData);
21             }
22
23             Console.ReadKey();
24         }
25
26          public class PublishGeneralMessageRQTransformerConfigHelper
27         {
28              public static bool ContainsEvent( string eventCode)
29             {
30                 var element = GetElement(eventCode);
31
32                  return element != null ;
33             }
34
35              public static EventConfigElement GetElement( string eventCode)
36             {
37                 var elements = GetConfig().EventElements;
38
39                  if (elements != null )
40                 {
41                      foreach (EventConfigElement aElement in elements)
42                     {
43                          if (aElement.EventCode == eventCode) return aElement;
44                     }
45                 }
46
47                  return null ;
48             }
49
50              public static EventConfigElements GetElements()
51             {
52                  return GetConfig().EventElements;
53             }
54
55              private static PublishGeneralMessageRQTransformerEventSection GetConfig()
56             {
57                  return ConfigurationManager.GetSection(PublishGeneralMessageRQTransformerEventSection.EventSection) as PublishGeneralMessageRQTransformerEventSection;
58             }
59         }
60     }
61
62      public class PublishGeneralMessageRQTransformerEventSection : ConfigurationSection
63     {
64          public const string EventSection = " PublishGeneralMessageRQTransformerConfiguration " ;
65          private const string EventConfigElementsKey = " eventItems " ;
66
67         [ConfigurationProperty(EventConfigElementsKey, IsDefaultCollection = true , IsRequired = true )]
68          public EventConfigElements EventElements
69         {
70              get
71             {
72                  return (EventConfigElements) this [EventConfigElementsKey];
73             }
74              set
75             {
76                  base [EventConfigElementsKey] = value;
77             }
78         }
79     }
80
81      public class EventConfigElements : ConfigurationElementCollection
82     {
83          public EventConfigElement this [ int index]
84         {
85              get
86             {
87                  return base .BaseGet(index) as EventConfigElement;
88             }
89              set
90             {
91                  if ( base .BaseGet(index) != null )
92                 {
93                      base .BaseRemoveAt(index);
94                 }
95                  this .BaseAdd(index, value);
96             }
97         }
98
99          protected override ConfigurationElement CreateNewElement()
100         {
101              return new EventConfigElement();
102         }
103
104          protected override object GetElementKey(ConfigurationElement element)
105         {
106              return ((EventConfigElement)element).ElementInformation;
107         }
108     }
109
110      public class EventConfigElement : ConfigurationElement
111     {
112          private const string EventCodeName = " EventCode " ;
113          private const string CategoryName = " Category " ;
114          private const string ActionCodeName = " ActionCode " ;
115          private const string IsRetrieveGUIDataName = " IsRetrieveGUIData " ;
116
117         [ConfigurationProperty(EventConfigElement.EventCodeName, IsRequired = true )]
118          public string EventCode
119         {
120              get
121             {
122                  return ( string ) this [EventCodeName];
123             }
124              set
125             {
126                  base [EventCodeName] = value;
127             }
128         }
129
130         [ConfigurationProperty(EventConfigElement.CategoryName, IsRequired = true )]
131          public string Category
132         {
133              get
134             {
135                  return ( string ) this [CategoryName];
136             }
137              set
138             {
139                  base [CategoryName] = value;
140             }
141         }
142
143         [ConfigurationProperty(EventConfigElement.ActionCodeName, IsRequired = true )]
144          public string ActionCode
145         {
146              get
147             {
148                  return ( string ) this [ActionCodeName];
149             }
150              set
151             {
152                  base [ActionCodeName] = value;
153             }
154         }
155
156         [ConfigurationProperty(EventConfigElement.IsRetrieveGUIDataName, IsRequired = false )]
157          public bool IsRetrieveGUIData
158         {
159              get
160             {
161                  return ( bool ) this [IsRetrieveGUIDataName];
162             }
163              set
164             {
165                  base [IsRetrieveGUIDataName] = value;
166             }
167         }
168     }
169 }