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.NET 4 和Silverlight 中可以使用以下方法:
public static void Validate(this Entity entity){ // prepare the result var validationResults = new List<ValidationResult>(); // create a validation context var validationContext = new ValidationContext(entity, null, null); // validate Validator.TryValidateObject(entity, validationContext, validationResults); // reset the validation errors of the entity entity.ValidationErrors.Clear(); foreach (var error in validationResults) entity.ValidationErrors.Add(error);} |
.NET 3.5中的方法：
public static class EntityValidator{ public static IEnumerable<ErrorField> GetErrors(object instance) { var t = instance.GetType(); var typeDescriptor = new AssociatedMetadataTypeTypeDescriptionProvider(t).GetTypeDescriptor(t); return from prop in typeDescriptor.GetProperties().Cast<PropertyDescriptor>() from attribute in prop.Attributes.OfType<ValidationAttribute>() where !attribute.IsValid(prop.GetValue(instance)) select new ErrorField(prop.Name, attribute.FormatErrorMessage(string.Empty)); } }[Serializable]public class ErrorField{ public string ID { get; set; } public string Msg { get; set; } public ErrorField(string id, string msg) { this.ID = id; this.Msg = msg; }} |
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原文地址：http://www.cnblogs.com/naliang/p/4611649.html
