我不理解 ModelState.IsValid，我相信這就是我在 CreateContact Action 方法中所缺少的。請解釋一下，我應該如何檢查 If(ModelState.IsValid)？我的驗證不起作用。如果文本框（或模型屬性）為空，我應該看到一條錯誤消息。如果它符合驗證規則，我應該能夠將日期保存到數據庫并在單擊提交按鈕后重定向到“AddContactDetails”操作方法。查看模型public class CreateContactStepOne{ public int PersonID { get; set; } [Required(ErrorMessage = "Nickname is required and keep it short upto 10 characters")] [Display(Name = "Nickname:")] [RegularExpression("^[a-zA-Z. ]{1,10}$", ErrorMessage = "Only letters and no numbers or special characters allowed. Also, limit your First Name to 10 character length.")] public string NickName { get; set; } [Required(ErrorMessage = "First Name is required")] [Display(Name = "First Name:")] [RegularExpression("^[a-zA-Z. ]{1,25}$", ErrorMessage = "Only letters and no numbers or special characters allowed. Also, limit your First Name to 25 character length.")] public string FirstName { get; set; } [Required(ErrorMessage = "Last Name is required")] [Display(Name = "Last Name: ")] [RegularExpression("^[a-zA-Z. ]{1,25}$", ErrorMessage = "Only letters and no numbers or special characters allowed. Also, limit your Last Name to 25 character length.")] public string LastName { get; set; } [Required(ErrorMessage = "Select Phone type and enter a phone number below")] [Display(Name = "Phone: ")] //[RegularExpression("^[0-9-]{1,12}$", ErrorMessage = "Please enter the correct format. Example 717-123-4567")] public Phone PhoneNumber { get; set; } [Required(ErrorMessage = "Phone number is required")] [RegularExpression(@"^\(?\d{3}\)?[\s.-]\d{3}[\s.-]\d{4}$", ErrorMessage = "Please enter the correct format. Example (717) 123-4567")] public string ContactPhoneNumber { get; set; }}public enum Phone{ Mobile, Office, Home}
2 回答
小唯快跑啊
TA貢獻1863條經驗 獲得超2個贊
您只需在Home Controller的CreateContact操作中添加ModelState 驗證即可。
[HttpPost]
public ActionResult CreateContact(CreateContactStepOne contact)
{
// add this section to the top of your action
if(!ModelState.IsValid)
{
return View("viewName", contact);
}
person p = new person();
p.FirstName = contact.FirstName;
p.LastName = contact.LastName;
if (contact.PhoneNumber == Phone.Home)
{
p.HomePhone = contact.ContactPhoneNumber.ToString();
}
else if (contact.PhoneNumber == Phone.Mobile)
{
p.MobilePhone = contact.ContactPhoneNumber.ToString();
}
else if (contact.PhoneNumber == Phone.Office)
{
p.OfficePhone = contact.ContactPhoneNumber.ToString();
}
PhonebookEntities db = new PhonebookEntities();
db.people.Add(p);
db.SaveChanges();
//Redirect to ActionMethod ContactDetails and passes the personID as parameter
return RedirectToAction("AddContactDetails", new { id = p.PersonID });
}
慕斯709654
TA貢獻1840條經驗 獲得超5個贊
添加if(!ModelState.IsValid)return View(contact);到CreateContact操作
[HttpPost]
public ActionResult CreateContact(CreateContactStepOne contact)
{
if(!ModelState.IsValid)return View(contact);
person p = new person();
p.FirstName = contact.FirstName;
p.LastName = contact.LastName;
if (contact.PhoneNumber == Phone.Home)
{
p.HomePhone = contact.ContactPhoneNumber.ToString();
}
else if (contact.PhoneNumber == Phone.Mobile)
{
p.MobilePhone = contact.ContactPhoneNumber.ToString();
}
else if (contact.PhoneNumber == Phone.Office)
{
p.OfficePhone = contact.ContactPhoneNumber.ToString();
}
PhonebookEntities db = new PhonebookEntities();
db.people.Add(p);
db.SaveChanges();
//Redirect to ActionMethod ContactDetails and passes the personID as parameter
return RedirectToAction("AddContactDetails", new { id = p.PersonID });
}
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