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
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
|
namespace System.Web.Mvc.Html {
using System;
using System.Collections;
using System.Collections.Generic;
using System.Data;
using System.Globalization;
using System.Linq;
using System.Text;
using System.Web.Mvc.Resources;
using System.Web.UI.WebControls;
internal static class DefaultDisplayTemplates {
internal static string BooleanTemplate(HtmlHelper html) {
bool? value = null;
if (html.ViewContext.ViewData.Model != null) {
value = Convert.ToBoolean(html.ViewContext.ViewData.Model, CultureInfo.InvariantCulture);
}
return html.ViewContext.ViewData.ModelMetadata.IsNullableValueType
? BooleanTemplateDropDownList(value)
: BooleanTemplateCheckbox(value ?? false);
}
private static string BooleanTemplateCheckbox(bool value) {
TagBuilder inputTag = new TagBuilder("input");
inputTag.AddCssClass("check-box");
inputTag.Attributes["disabled"] = "disabled";
inputTag.Attributes["type"] = "checkbox";
if (value) {
inputTag.Attributes["checked"] = "checked";
}
return inputTag.ToString(TagRenderMode.SelfClosing);
}
private static string BooleanTemplateDropDownList(bool? value) {
StringBuilder builder = new StringBuilder();
TagBuilder selectTag = new TagBuilder("select");
selectTag.AddCssClass("list-box");
selectTag.AddCssClass("tri-state");
selectTag.Attributes["disabled"] = "disabled";
builder.Append(selectTag.ToString(TagRenderMode.StartTag));
foreach (SelectListItem item in DefaultEditorTemplates.TriStateValues(value)) {
builder.Append(SelectExtensions.ListItemToOption(item));
}
builder.Append(selectTag.ToString(TagRenderMode.EndTag));
return builder.ToString();
}
internal static string CollectionTemplate(HtmlHelper html) {
return CollectionTemplate(html, TemplateHelpers.TemplateHelper);
}
internal static string CollectionTemplate(HtmlHelper html, TemplateHelpers.TemplateHelperDelegate templateHelper) {
object model = html.ViewContext.ViewData.ModelMetadata.Model;
if (model == null) {
return String.Empty;
}
IEnumerable collection = model as IEnumerable;
if (collection == null) {
throw new InvalidOperationException(
String.Format(
CultureInfo.CurrentCulture,
MvcResources.Templates_TypeMustImplementIEnumerable,
model.GetType().FullName
)
);
}
Type typeInCollection = typeof(string);
Type genericEnumerableType = TypeHelpers.ExtractGenericInterface(collection.GetType(), typeof(IEnumerable<>));
if (genericEnumerableType != null) {
typeInCollection = genericEnumerableType.GetGenericArguments()[0];
}
bool typeInCollectionIsNullableValueType = TypeHelpers.IsNullableValueType(typeInCollection);
string oldPrefix = html.ViewContext.ViewData.TemplateInfo.HtmlFieldPrefix;
try {
html.ViewContext.ViewData.TemplateInfo.HtmlFieldPrefix = String.Empty;
string fieldNameBase = oldPrefix;
StringBuilder result = new StringBuilder();
int index = 0;
foreach (object item in collection) {
Type itemType = typeInCollection;
if (item != null && !typeInCollectionIsNullableValueType) {
itemType = item.GetType();
}
ModelMetadata metadata = ModelMetadataProviders.Current.GetMetadataForType(() => item, itemType);
string fieldName = String.Format(CultureInfo.InvariantCulture, "{0}[{1}]", fieldNameBase, index++);
string output = templateHelper(html, metadata, fieldName, null /* templateName */, DataBoundControlMode.ReadOnly, null /* additionalViewData */);
result.Append(output);
}
return result.ToString();
}
finally {
html.ViewContext.ViewData.TemplateInfo.HtmlFieldPrefix = oldPrefix;
}
}
internal static string DecimalTemplate(HtmlHelper html) {
if (html.ViewContext.ViewData.TemplateInfo.FormattedModelValue == html.ViewContext.ViewData.ModelMetadata.Model) {
html.ViewContext.ViewData.TemplateInfo.FormattedModelValue = String.Format(CultureInfo.CurrentCulture, "{0:0.00}", html.ViewContext.ViewData.ModelMetadata.Model);
}
return StringTemplate(html);
}
internal static string EmailAddressTemplate(HtmlHelper html) {
return String.Format(CultureInfo.InvariantCulture,
"<a href=\"mailto:{0}\">{1}</a>",
html.AttributeEncode(html.ViewContext.ViewData.Model),
html.Encode(html.ViewContext.ViewData.TemplateInfo.FormattedModelValue));
}
internal static string HiddenInputTemplate(HtmlHelper html) {
if (html.ViewContext.ViewData.ModelMetadata.HideSurroundingHtml) {
return String.Empty;
}
return StringTemplate(html);
}
internal static string HtmlTemplate(HtmlHelper html) {
return html.ViewContext.ViewData.TemplateInfo.FormattedModelValue.ToString();
}
internal static string ObjectTemplate(HtmlHelper html) {
return ObjectTemplate(html, TemplateHelpers.TemplateHelper);
}
internal static string ObjectTemplate(HtmlHelper html, TemplateHelpers.TemplateHelperDelegate templateHelper) {
ViewDataDictionary viewData = html.ViewContext.ViewData;
TemplateInfo templateInfo = viewData.TemplateInfo;
ModelMetadata modelMetadata = viewData.ModelMetadata;
StringBuilder builder = new StringBuilder();
if (modelMetadata.Model == null) { // DDB #225237
return modelMetadata.NullDisplayText;
}
if (templateInfo.TemplateDepth > 1) { // DDB #224751
return modelMetadata.SimpleDisplayText;
}
foreach (ModelMetadata propertyMetadata in modelMetadata.Properties.Where(pm => ShouldShow(pm, templateInfo))) {
if (!propertyMetadata.HideSurroundingHtml) {
string label = propertyMetadata.GetDisplayName();
if (!String.IsNullOrEmpty(label)) {
builder.AppendFormat(CultureInfo.InvariantCulture, "<div class=\"display-label\">{0}</div>", label);
builder.AppendLine();
}
builder.Append("<div class=\"display-field\">");
}
builder.Append(templateHelper(html, propertyMetadata, propertyMetadata.PropertyName, null /* templateName */, DataBoundControlMode.ReadOnly, null /* additionalViewData */));
if (!propertyMetadata.HideSurroundingHtml) {
builder.AppendLine("</div>");
}
}
return builder.ToString();
}
private static bool ShouldShow(ModelMetadata metadata, TemplateInfo templateInfo) {
return
metadata.ShowForDisplay
#if !MONO
&& metadata.ModelType != typeof(EntityState)
#endif
&& !metadata.IsComplexType
&& !templateInfo.Visited(metadata);
}
internal static string StringTemplate(HtmlHelper html) {
return html.Encode(html.ViewContext.ViewData.TemplateInfo.FormattedModelValue);
}
internal static string UrlTemplate(HtmlHelper html) {
return String.Format(CultureInfo.InvariantCulture,
"<a href=\"{0}\">{1}</a>",
html.AttributeEncode(html.ViewContext.ViewData.Model),
html.Encode(html.ViewContext.ViewData.TemplateInfo.FormattedModelValue));
}
}
}
|
