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comparison Source/Common/EntityBase.cs @ 0:f990fcb411a9

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Копия текущей версии из github
author cin
date Thu, 27 Mar 2014 21:46:09 +0400
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-1:000000000000 0:f990fcb411a9
1 using System;
2 using System.Collections;
3 using System.ComponentModel;
4 using System.Runtime.InteropServices;
5
6 using BLToolkit.ComponentModel;
7 using BLToolkit.Mapping;
8 using BLToolkit.Validation;
9
10 namespace BLToolkit.Common
11 {
12 [Serializable, Trimmable, ComVisible(true), JetBrains.Annotations.UsedImplicitly]
13 public abstract class EntityBase : ICustomTypeDescriptor
14 {
15 #region Protected members
16
17 protected virtual ICustomTypeDescriptor CreateTypeDescriptor()
18 {
19 return new CustomTypeDescriptorImpl(GetType());
20 }
21
22 #endregion
23
24 #region ICustomTypeDescriptor Members
25
26 private static readonly Hashtable _hashDescriptors = new Hashtable();
27
28 [NonSerialized]
29 private ICustomTypeDescriptor _typeDescriptor;
30 private ICustomTypeDescriptor TypeDescriptor
31 {
32 get
33 {
34 if (_typeDescriptor == null)
35 {
36 Type key = GetType();
37
38 _typeDescriptor = (ICustomTypeDescriptor)_hashDescriptors[key];
39
40 if (_typeDescriptor == null)
41 _hashDescriptors[key] = _typeDescriptor = CreateTypeDescriptor();
42 }
43
44 return _typeDescriptor;
45 }
46 }
47
48 AttributeCollection ICustomTypeDescriptor.GetAttributes()
49 {
50 return TypeDescriptor.GetAttributes();
51 }
52
53 string ICustomTypeDescriptor.GetClassName()
54 {
55 return TypeDescriptor.GetClassName();
56 }
57
58 string ICustomTypeDescriptor.GetComponentName()
59 {
60 return TypeDescriptor.GetComponentName();
61 }
62
63 TypeConverter ICustomTypeDescriptor.GetConverter()
64 {
65 return TypeDescriptor.GetConverter();
66 }
67
68 EventDescriptor ICustomTypeDescriptor.GetDefaultEvent()
69 {
70 return TypeDescriptor.GetDefaultEvent();
71 }
72
73 PropertyDescriptor ICustomTypeDescriptor.GetDefaultProperty()
74 {
75 return TypeDescriptor.GetDefaultProperty();
76 }
77
78 object ICustomTypeDescriptor.GetEditor(Type editorBaseType)
79 {
80 return TypeDescriptor.GetEditor(editorBaseType);
81 }
82
83 EventDescriptorCollection ICustomTypeDescriptor.GetEvents(Attribute[] attributes)
84 {
85 return TypeDescriptor.GetEvents(attributes);
86 }
87
88 EventDescriptorCollection ICustomTypeDescriptor.GetEvents()
89 {
90 return TypeDescriptor.GetEvents();
91 }
92
93 PropertyDescriptorCollection ICustomTypeDescriptor.GetProperties(Attribute[] attributes)
94 {
95 return TypeDescriptor.GetProperties(attributes);
96 }
97
98 PropertyDescriptorCollection ICustomTypeDescriptor.GetProperties()
99 {
100 return TypeDescriptor.GetProperties();
101 }
102
103 object ICustomTypeDescriptor.GetPropertyOwner(PropertyDescriptor pd)
104 {
105 // Do not relay this call to TypeDescriptor. We are the owner.
106 //
107 return this;
108 }
109
110 #endregion
111
112 #region Validation
113
114 public virtual void Validate()
115 {
116 Validator.Validate(this);
117 }
118
119 public virtual bool IsValid(string fieldName)
120 {
121 return Validator.IsValid(this, fieldName);
122 }
123
124 public virtual string[] GetErrorMessages(string fieldName)
125 {
126 return Validator.GetErrorMessages(this, fieldName);
127 }
128
129 #endregion
130 }
131 }