1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
|
/* ****************************************************************************
*
* Copyright (c) Microsoft Corporation. All rights reserved.
*
* This software is subject to the Microsoft Public License (Ms-PL).
* A copy of the license can be found in the license.htm file included
* in this distribution.
*
* You must not remove this notice, or any other, from this software.
*
* ***************************************************************************/
namespace System.Web.Mvc {
using System;
using System.ComponentModel.DataAnnotations;
using System.Globalization;
using System.Reflection;
using System.Web.Mvc.Resources;
public class DataAnnotationsModelMetadata : ModelMetadata {
private DisplayColumnAttribute _displayColumnAttribute;
public DataAnnotationsModelMetadata(DataAnnotationsModelMetadataProvider provider, Type containerType,
Func<object> modelAccessor, Type modelType, string propertyName,
DisplayColumnAttribute displayColumnAttribute)
: base(provider, containerType, modelAccessor, modelType, propertyName) {
_displayColumnAttribute = displayColumnAttribute;
}
protected override string GetSimpleDisplayText() {
if (Model != null) {
if (_displayColumnAttribute != null && !String.IsNullOrEmpty(_displayColumnAttribute.DisplayColumn)) {
PropertyInfo displayColumnProperty = ModelType.GetProperty(_displayColumnAttribute.DisplayColumn, BindingFlags.Public | BindingFlags.IgnoreCase | BindingFlags.Instance);
ValidateDisplayColumnAttribute(_displayColumnAttribute, displayColumnProperty, ModelType);
object simpleDisplayTextValue = displayColumnProperty.GetValue(Model, new object[0]);
if (simpleDisplayTextValue != null) {
return simpleDisplayTextValue.ToString();
}
}
}
return base.GetSimpleDisplayText();
}
private static void ValidateDisplayColumnAttribute(DisplayColumnAttribute displayColumnAttribute, PropertyInfo displayColumnProperty, Type modelType) {
if (displayColumnProperty == null) {
throw new InvalidOperationException(
String.Format(
CultureInfo.CurrentCulture,
MvcResources.DataAnnotationsModelMetadataProvider_UnknownProperty,
modelType.FullName, displayColumnAttribute.DisplayColumn));
}
if (displayColumnProperty.GetGetMethod() == null) {
throw new InvalidOperationException(
String.Format(
CultureInfo.CurrentCulture,
MvcResources.DataAnnotationsModelMetadataProvider_UnreadableProperty,
modelType.FullName, displayColumnAttribute.DisplayColumn));
}
}
}
}
|
