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CachedDataAnnotationsModelMetadata.cs
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CachedDataAnnotationsModelMetadata.cs
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// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved. See License.txt in the project root for license information.
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Globalization;
using System.Linq;
using System.Reflection;
using System.Web.Mvc.Properties;
namespace System.Web.Mvc
{
public class CachedDataAnnotationsModelMetadata : CachedModelMetadata<CachedDataAnnotationsMetadataAttributes>
{
public CachedDataAnnotationsModelMetadata(CachedDataAnnotationsModelMetadata prototype, Func<object> modelAccessor)
: base(prototype, modelAccessor)
{
}
public CachedDataAnnotationsModelMetadata(CachedDataAnnotationsModelMetadataProvider provider, Type containerType, Type modelType, string propertyName, IEnumerable<Attribute> attributes)
: base(provider, containerType, modelType, propertyName, new CachedDataAnnotationsMetadataAttributes(attributes.ToArray()))
{
}
protected override bool ComputeConvertEmptyStringToNull()
{
return PrototypeCache.DisplayFormat != null
? PrototypeCache.DisplayFormat.ConvertEmptyStringToNull
: base.ComputeConvertEmptyStringToNull();
}
protected override string ComputeDataTypeName()
{
if (PrototypeCache.DataType != null)
{
return PrototypeCache.DataType.ToDataTypeName();
}
if (PrototypeCache.DisplayFormat != null && !PrototypeCache.DisplayFormat.HtmlEncode)
{
return DataTypeUtil.HtmlTypeName;
}
return base.ComputeDataTypeName();
}
protected override string ComputeDescription()
{
return PrototypeCache.Display != null
? PrototypeCache.Display.GetDescription()
: base.ComputeDescription();
}
protected override string ComputeDisplayFormatString()
{
return PrototypeCache.DisplayFormat != null
? PrototypeCache.DisplayFormat.DataFormatString
: base.ComputeDisplayFormatString();
}
protected override string ComputeDisplayName()
{
string result = null;
if (PrototypeCache.Display != null)
{
result = PrototypeCache.Display.GetName();
}
if (result == null && PrototypeCache.DisplayName != null)
{
result = PrototypeCache.DisplayName.DisplayName;
}
return result ?? base.ComputeDisplayName();
}
protected override string ComputeEditFormatString()
{
if (PrototypeCache.DisplayFormat != null && PrototypeCache.DisplayFormat.ApplyFormatInEditMode)
{
return PrototypeCache.DisplayFormat.DataFormatString;
}
return base.ComputeEditFormatString();
}
protected override bool ComputeHideSurroundingHtml()
{
return PrototypeCache.HiddenInput != null
? !PrototypeCache.HiddenInput.DisplayValue
: base.ComputeHideSurroundingHtml();
}
protected override bool ComputeIsReadOnly()
{
if (PrototypeCache.Editable != null)
{
return !PrototypeCache.Editable.AllowEdit;
}
if (PrototypeCache.ReadOnly != null)
{
return PrototypeCache.ReadOnly.IsReadOnly;
}
return base.ComputeIsReadOnly();
}
protected override bool ComputeIsRequired()
{
return PrototypeCache.Required != null
? true
: base.ComputeIsRequired();
}
protected override string ComputeNullDisplayText()
{
return PrototypeCache.DisplayFormat != null
? PrototypeCache.DisplayFormat.NullDisplayText
: base.ComputeNullDisplayText();
}
protected override int ComputeOrder()
{
int? result = null;
if (PrototypeCache.Display != null)
{
result = PrototypeCache.Display.GetOrder();
}
return result ?? base.ComputeOrder();
}
protected override string ComputeShortDisplayName()
{
return PrototypeCache.Display != null
? PrototypeCache.Display.GetShortName()
: base.ComputeShortDisplayName();
}
protected override bool ComputeShowForDisplay()
{
return PrototypeCache.ScaffoldColumn != null
? PrototypeCache.ScaffoldColumn.Scaffold
: base.ComputeShowForDisplay();
}
protected override bool ComputeShowForEdit()
{
return PrototypeCache.ScaffoldColumn != null
? PrototypeCache.ScaffoldColumn.Scaffold
: base.ComputeShowForEdit();
}
protected override string ComputeSimpleDisplayText()
{
if (Model != null)
{
if (PrototypeCache.DisplayColumn != null && !String.IsNullOrEmpty(PrototypeCache.DisplayColumn.DisplayColumn))
{
PropertyInfo displayColumnProperty = ModelType.GetProperty(PrototypeCache.DisplayColumn.DisplayColumn, BindingFlags.Public | BindingFlags.IgnoreCase | BindingFlags.Instance);
ValidateDisplayColumnAttribute(PrototypeCache.DisplayColumn, displayColumnProperty, ModelType);
object simpleDisplayTextValue = displayColumnProperty.GetValue(Model, new object[0]);
if (simpleDisplayTextValue != null)
{
return simpleDisplayTextValue.ToString();
}
}
}
return base.ComputeSimpleDisplayText();
}
protected override string ComputeTemplateHint()
{
if (PrototypeCache.UIHint != null)
{
return PrototypeCache.UIHint.UIHint;
}
if (PrototypeCache.HiddenInput != null)
{
return "HiddenInput";
}
return base.ComputeTemplateHint();
}
protected override string ComputeWatermark()
{
return PrototypeCache.Display != null
? PrototypeCache.Display.GetPrompt()
: base.ComputeWatermark();
}
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));
}
}
}
}