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comparison Source/Validation/ValidatorBaseAttribute.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.Reflection;
3 using System.ComponentModel;
4
5 namespace BLToolkit.Validation
6 {
7 public abstract class ValidatorBaseAttribute : Attribute
8 {
9 protected ValidatorBaseAttribute()
10 {
11 }
12
13 protected ValidatorBaseAttribute(string errorMessage)
14 {
15 _errorMessage = errorMessage;
16 }
17
18 private string _errorMessage;
19 public virtual string ErrorMessage
20 {
21 get { return _errorMessage; }
22 set { _errorMessage = value; }
23 }
24
25 public abstract bool IsValid(ValidationContext context);
26
27 public virtual string GetErrorMessage(ValidationContext context)
28 {
29 return string.Format(ErrorMessage, GetPropertyFriendlyName(context));
30 }
31
32 protected virtual string GetPropertyFriendlyName(ValidationContext context)
33 {
34 MemberInfo mi = context.MemberInfo;
35 string className = mi.DeclaringType.Name;
36 string fieldName = mi.Name;
37
38 // Get class name.
39 //
40 object[] attrs = mi.DeclaringType.GetCustomAttributes(typeof(FriendlyNameAttribute), true);
41
42 if (attrs.Length > 0)
43 className = ((FriendlyNameAttribute)attrs[0]).Name;
44 else
45 {
46 attrs = mi.DeclaringType.GetCustomAttributes(typeof(DisplayNameAttribute), true);
47
48 if (attrs.Length > 0)
49 className = ((DisplayNameAttribute)attrs[0]).DisplayName;
50 }
51
52 // Get field name.
53 //
54 attrs = mi.GetCustomAttributes(typeof(FriendlyNameAttribute), true);
55
56 if (attrs.Length > 0)
57 fieldName = ((FriendlyNameAttribute)attrs[0]).Name;
58 else
59 {
60 attrs = mi.GetCustomAttributes(typeof(DisplayNameAttribute), true);
61
62 if (attrs.Length > 0)
63 fieldName = ((DisplayNameAttribute)attrs[0]).DisplayName;
64 }
65
66 return string.IsNullOrEmpty(className)? fieldName: className + "." + fieldName;
67 }
68 }
69 }