C# 实体model验证输出

[Required(ErrorMessage = @"地址 1 为必填项！")]
[StringLength(99, ErrorMessage = @"地址 1 不能超过99个字符")]
public string Address1 { get; set; }

var model = new ClassModel
{
Address1 = "",
};

var errors = new List<ValidationResult>();
var context = new ValidationContext(model, null, null);
Validator.TryValidateObject(model, context, errors, true);

if (errors.Any())
{
MessageBox.Show(errors.Select(t => t.ErrorMessage).FirstOrDefault());
}