52 lines
2.2 KiB
C#
52 lines
2.2 KiB
C#
namespace System.Web.Mvc {
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using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.ComponentModel.DataAnnotations;
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using System.Globalization;
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using System.Linq;
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using System.Web.Mvc.Resources;
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public abstract class AssociatedValidatorProvider : ModelValidatorProvider {
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protected virtual ICustomTypeDescriptor GetTypeDescriptor(Type type) {
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return TypeDescriptorHelper.Get(type);
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}
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public override sealed IEnumerable<ModelValidator> GetValidators(ModelMetadata metadata, ControllerContext context) {
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if (metadata == null) {
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throw new ArgumentNullException("metadata");
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}
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if (context == null) {
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throw new ArgumentNullException("context");
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}
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if (metadata.ContainerType != null && !String.IsNullOrEmpty(metadata.PropertyName)) {
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return GetValidatorsForProperty(metadata, context);
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}
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return GetValidatorsForType(metadata, context);
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}
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protected abstract IEnumerable<ModelValidator> GetValidators(ModelMetadata metadata, ControllerContext context, IEnumerable<Attribute> attributes);
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private IEnumerable<ModelValidator> GetValidatorsForProperty(ModelMetadata metadata, ControllerContext context) {
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ICustomTypeDescriptor typeDescriptor = GetTypeDescriptor(metadata.ContainerType);
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PropertyDescriptor property = typeDescriptor.GetProperties().Find(metadata.PropertyName, true);
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if (property == null) {
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throw new ArgumentException(
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String.Format(
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CultureInfo.CurrentCulture,
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MvcResources.Common_PropertyNotFound,
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metadata.ContainerType.FullName, metadata.PropertyName),
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"metadata");
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}
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return GetValidators(metadata, context, property.Attributes.OfType<Attribute>());
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}
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private IEnumerable<ModelValidator> GetValidatorsForType(ModelMetadata metadata, ControllerContext context) {
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return GetValidators(metadata, context, GetTypeDescriptor(metadata.ModelType).GetAttributes().Cast<Attribute>());
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}
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}
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}
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