62 lines
2.3 KiB
C#
62 lines
2.3 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.DataAnnotations;
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using System.Linq;
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public class DataAnnotationsModelValidator : ModelValidator {
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public DataAnnotationsModelValidator(ModelMetadata metadata, ControllerContext context, ValidationAttribute attribute)
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: base(metadata, context) {
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if (attribute == null) {
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throw new ArgumentNullException("attribute");
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}
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Attribute = attribute;
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}
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protected internal ValidationAttribute Attribute { get; private set; }
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protected internal string ErrorMessage {
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get {
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return Attribute.FormatErrorMessage(Metadata.GetDisplayName());
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}
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}
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public override bool IsRequired {
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get {
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return Attribute is RequiredAttribute;
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}
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}
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internal static ModelValidator Create(ModelMetadata metadata, ControllerContext context, ValidationAttribute attribute) {
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return new DataAnnotationsModelValidator(metadata, context, attribute);
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}
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public override IEnumerable<ModelClientValidationRule> GetClientValidationRules() {
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IEnumerable<ModelClientValidationRule> results = base.GetClientValidationRules();
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IClientValidatable clientValidatable = Attribute as IClientValidatable;
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if (clientValidatable != null) {
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results = results.Concat(clientValidatable.GetClientValidationRules(Metadata, ControllerContext));
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}
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return results;
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}
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public override IEnumerable<ModelValidationResult> Validate(object container) {
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// Per the WCF RIA Services team, instance can never be null (if you have
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// no parent, you pass yourself for the "instance" parameter).
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ValidationContext context = new ValidationContext(container ?? Metadata.Model, null, null);
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context.DisplayName = Metadata.GetDisplayName();
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ValidationResult result = Attribute.GetValidationResult(Metadata.Model, context);
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if (result != ValidationResult.Success) {
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yield return new ModelValidationResult {
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Message = result.ErrorMessage
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};
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}
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}
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}
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}
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