Validator.TryValidateProperty不起作用
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我正在尝试实现Validator.TryValidateProperty，即使存在[Required] DataAnnotation，TryValidateProperty也会返回有效响应。
这是我的客户局部类：
[MetadataType(typeof(Customer.Metadata))]
public partial class Customer : global::System.Data.Objects.DataClasses.EntityObject
{
...
private sealed class Metadata
{
[Required]
[SSNValidAttribute(ErrorMessage = \"The SSN should be 9 numeric characters without any punctuation.\")]
[DisplayName(\"SSN\")]
public String SSN { get; set; }
...
...
var customer = new Customer();
customer.SSN = \"\";
var vc = new ValidationContext(customer, null, null);
vc.MemberName = \"SSN\";
var res = new List<ValidationResult>();
var result = Validator.TryValidateProperty(customer.SSN, vc, res);
...
没有找到相关结果
已邀请:
1 个回复
昧伎
类的解决方案。var customer = new Customer(); TypeDescriptor.AddProviderTransparent (new AssociatedMetadataTypeTypeDescriptionProvider (customer.GetType()), customer.GetType()); customer.SSN = \"\"; var vc = new ValidationContext(customer, null, null); vc.MemberName = \"SSN\"; var res = new List<ValidationResult>(); var result = Validator.TryValidateProperty(customer.SSN, vc, res);TypeDescriptor.AddProviderTransparent (new AssociatedMetadataTypeTypeDescriptionProvider (customer.GetType()), customer.GetType());