1 <system.net> 2 <mailSettings> 3 <smtp from="[email protected]"> 4 <network /> 5 </smtp> 6 </mailSettings> 7 </system.net>
读取上面↑的xml代码{
1 mtpSection section = ConfigurationManager.GetSection("system.net/mailSettings/smtp") as SmtpSection;
2 labMailFrom.Text = "Mail From: " + section.From;
}
写入配置文件：
Configuration config = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);
SmtpSection section = config.GetSection("system.net/mailSettings/smtp") as SmtpSection;
section.From = "[email protected]";
config.Save();
如果配置文件为以下格式的：
<MySection444>
<add key="aa" value="11111"></add>
<add key="bb" value="22222"></add>
<add key="cc" value="33333"></add>
</MySection444>
读取方法：
1 public class MySection4 : ConfigurationSection // 所有配置节点都要选择这个基类
2 {
3 private static readonly ConfigurationProperty s_property
4 = new ConfigurationProperty(string.Empty, typeof(MyKeyValueCollection), null,
5 ConfigurationPropertyOptions.IsDefaultCollection);
6
7 [ConfigurationProperty("", Options = ConfigurationPropertyOptions.IsDefaultCollection)]
8 public MyKeyValueCollection KeyValues
9 {
10 get
11 {
12 return (MyKeyValueCollection)base[s_property];
13 }
14 }
15 }
16
17
18 [ConfigurationCollection(typeof(MyKeyValueSetting))]
19 public class MyKeyValueCollection : ConfigurationElementCollection // 自定义一个集合
20 {
21 // 基本上，所有的方法都只要简单地调用基类的实现就可以了。
22
23 public MyKeyValueCollection() : base(StringComparer.OrdinalIgnoreCase) // 忽略大小写
24 {
25 }
26
27 // 其实关键就是这个索引器。但它也是调用基类的实现，只是做下类型转就行了。
28 new public MyKeyValueSetting this[string name]
29 {
30 get
31 {
32 return (MyKeyValueSetting)base.BaseGet(name);
33 }
34 }
35
36 // 下面二个方法中抽象类中必须要实现的。
37 protected override ConfigurationElement CreateNewElement()
38 {
39 return new MyKeyValueSetting();
40 }
41 protected override object GetElementKey(ConfigurationElement element)
42 {
43 return ((MyKeyValueSetting)element).Key;
44 }
45
46 // 说明：如果不需要在代码中修改集合，可以不实现Add, Clear, Remove
47 public void Add(MyKeyValueSetting setting)
48 {
49 this.BaseAdd(setting);
50 }
51 public void Clear()
52 {
53 base.BaseClear();
54 }
55 public void Remove(string name)
56 {
57 base.BaseRemove(name);
58 }
59 }
60
61 public class MyKeyValueSetting : ConfigurationElement // 集合中的每个元素
62 {
63 [ConfigurationProperty("key", IsRequired = true)]
64 public string Key
65 {
66 get { return this["key"].ToString(); }
67 set { this["key"] = value; }
68 }
69
70 [ConfigurationProperty("value", IsRequired = true)]
71 public string Value
72 {
73 get { return this["value"].ToString(); }
74 set { this["value"] = value; }
75 }
76 }
下面是demo方法
1 public class EsbHeaders : ConfigurationElement
2 {
3 [ConfigurationProperty("children", IsDefaultCollection = true)]
4 [ConfigurationCollection(typeof(EsbHeader), AddItemName = "header")]
5 public EsbHeaderCollection Headers
6 {
7 get { return (EsbHeaderCollection)base["children"]; }
8 set { base["children"] = value; }
9 }
10 }
11
12 public class EsbHeaderCollection : ConfigurationElementCollection
13 {
14 protected override ConfigurationElement CreateNewElement()
15 {
16 return new EsbHeader();
17 }
18
19 protected override object GetElementKey(ConfigurationElement element)
20 {
21 return ((EsbHeader)element).Identity;
22 }
23
24
25 public new EsbHeader this[string key]
26 {
27 get { return (EsbHeader)base.BaseGet(key); }
28 }
29
30 public EsbHeader this[int index]
31 {
32 get { return (EsbHeader)base.BaseGet(index); }
33 }
34
35 public List<EsbHeader> ToList()
36 {
37 var list = new List<EsbHeader>();
38 IEnumerator ie = this.GetEnumerator();
39 while (ie.MoveNext())
40 list.Add(ie.Current as EsbHeader);
41 return list;
42 }
43 }
44
45 public class EsbHeader : ConfigurationElement, IRequestEntity
46 {
47 private string identity = string.Empty;
48 [ConfigurationProperty("identity", IsRequired = false)]
49 public string Identity
50 {
51 get
52 {
53 if (identity == string.Empty)
54 return this.SERVICE_CODE;
55 else
56 return identity;
57 }
58 set { identity = value; }
59 }
60
61
62 [ConfigurationProperty("service", IsRequired = true)]
63 public string SERVICE_CODE
64 {
65 get { return (string)base["service"]; }
66 set { base["service"] = value; }
67 }
68
69 [ConfigurationProperty("version", IsRequired = true)]
70 public string VERSION
71 {
72 get { return (string)base["version"]; }
73 set { base["version"] = value; }
74 }
75
76 [ConfigurationProperty("consumer", IsRequired = true)]
77 public string CONSUMER_CODE
78 {
79 get { return (string)base["consumer"]; }
80 set { base["consumer"] = value; }
81 }
82
83 [ConfigurationProperty("password", IsRequired = true)]
84 public string PASSWORD
85 {
86 get { return (string)base["password"]; }
87 set { base["password"] = value; }
88 }
89
90 [ConfigurationProperty("desc", IsRequired = true)]
91 public string Description
92 {
93 get { return (string)base["desc"]; }
94 set { base["desc"] = value; }
95 }
96
97
98 [ConfigurationProperty("ext1", IsRequired = false)]
99 public string EXT1
100 {
101 get { return (string)base["ext1"]; }
102 set { base["ext1"] = value; }
103 }
104 [ConfigurationProperty("ext2", IsRequired = false)]
105 public string EXT2
106 {
107 get { return (string)base["ext2"]; }
108 set { base["ext2"] = value; }
109 }
110 [ConfigurationProperty("ext3", IsRequired = false)]
111 public string EXT3
112 {
113 get { return (string)base["ext3"]; }
114 set { base["ext3"] = value; }
115 }
demo-config
1 <sinosoft> 2 <esb> 3 <headers> 4 <children> 5 <header service="s-1" version="1" consumer="CS-1/65/" password="12436798" desc=""></header> 6 <header service="s-2" version="1" consumer="CS-1/6" password="4235465687" desc=""></header> 7 <header service="s-3" version="1" consumer="CS-1/-01" password="24346" desc=""></header> 8 9 </children> 10 </headers> 11 </esb> 12 <reports> 13 <sms url="" userid="TCBB" password="456"></sms> 14 </reports> 15 </sinosoft>
小结：
1. 为每个集合中的参数项创建一个从ConfigurationElement继承的派生类。
2. 为集合创建一个从ConfigurationElementCollection继承的集合类，具体在实现时主要就是调用基类的方法。
3. 在创建ConfigurationSection的继承类时，创建一个表示集合的属性就可以了，注意[ConfigurationProperty]的各参数。
参考自：http://www.cnblogs.com/fish-li/archive/2011/12/18/2292037.html#_labelStart
时间： 2024-10-30 03:01:47