[英]ValidationMessageFor readonly property, or one ValidationMessageFor two properties
我有一個包含
[Required]
public string FirstName { get; set; }
[Required]
public string LastName { get; set; }
public string FullName {
get {
return this.FirstName + " " + this.LastName;
}
}
是否有Html.ValidationMessageFor
FullName或FirstName或LastName為空白時出現的某些自定義驗證消息?
UPDATE
這就是我要的。
Full name is required.
Full name is required.
Full name is required.
您可以執行以下操作(我希望我不會誤會您):
[Required(ErrorMessage="Yo fill this up please"]
public string FirstName { get; set; }
編輯
如果您有一些更具體的驗證要求,則可以通過模型實現IValidateObject
,例如:
public class Person : IValidatableObject
{
public string FirstName { get; set; }
public string LastName { get; set; }
public string FullName
{
get { return string.Format("{0} {1}", FirstName, LastName); }
}
public IEnumerable<ValidationResult> Validate(ValidationContext validationContext)
{
if (string.IsNullOrEmpty(FirstName) || string.IsNullOrEmpty(LastName))
{
yield return new ValidationResult("The full name is required.");
}
}
}
然后在您的Controller中,ModelState將指示輸入是否無效:
[HttpPost]
public ActionResult Create(Person person)
{
if (!ModelState.IsValid)
{
return View();
}
// do your stuff here ...
}
當然,在您看來,您可以通過ValidationSummary獲取驗證消息:
@Html.ValidationSummary(true)
我希望這有幫助。
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