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namespace System.Web.Mvc {
using System;
using System.Collections.Generic;
using System.Diagnostics.CodeAnalysis;
using System.Linq;
public abstract class ModelValidator {
protected ModelValidator(ModelMetadata metadata, ControllerContext controllerContext) {
if (metadata == null) {
throw new ArgumentNullException("metadata");
}
if (controllerContext == null) {
throw new ArgumentNullException("controllerContext");
}
Metadata = metadata;
ControllerContext = controllerContext;
}
protected internal ControllerContext ControllerContext { get; private set; }
public virtual bool IsRequired {
get {
return false;
}
}
protected internal ModelMetadata Metadata { get; private set; }
[SuppressMessage("Microsoft.Design", "CA1024:UsePropertiesWhereAppropriate", Justification = "This method may perform non-trivial work.")]
public virtual IEnumerable<ModelClientValidationRule> GetClientValidationRules() {
return Enumerable.Empty<ModelClientValidationRule>();
}
public static ModelValidator GetModelValidator(ModelMetadata metadata, ControllerContext context) {
return new CompositeModelValidator(metadata, context);
}
public abstract IEnumerable<ModelValidationResult> Validate(object container);
private class CompositeModelValidator : ModelValidator {
public CompositeModelValidator(ModelMetadata metadata, ControllerContext controllerContext)
: base(metadata, controllerContext) {
}
public override IEnumerable<ModelValidationResult> Validate(object container) {
bool propertiesValid = true;
foreach (ModelMetadata propertyMetadata in Metadata.Properties) {
foreach (ModelValidator propertyValidator in propertyMetadata.GetValidators(ControllerContext)) {
foreach (ModelValidationResult propertyResult in propertyValidator.Validate(Metadata.Model)) {
propertiesValid = false;
yield return new ModelValidationResult {
MemberName = DefaultModelBinder.CreateSubPropertyName(propertyMetadata.PropertyName, propertyResult.MemberName),
Message = propertyResult.Message
};
}
}
}
if (propertiesValid) {
foreach (ModelValidator typeValidator in Metadata.GetValidators(ControllerContext)) {
foreach (ModelValidationResult typeResult in typeValidator.Validate(container)) {
yield return typeResult;
}
}
}
}
}
}
}
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