Ho appena iniziato a utilizzare ViewModels. Ragazzi potete controllare questo codice per vedere se sto seguendo le migliori pratiche? C'è qualcosa fuori dall'ordinario? Vuoi fare la validazione in modo diverso?Implementazione ViewModel in ASP.NET MVC - Questo codice è la migliore prassi?
Scusate se il codice è lungo (ci sono così tante parti). Ho cercato di renderlo il più facile da capire possibile.
Grazie!
Modello
public class CustomerModel
{
[Required(ErrorMessage="Primer nombre!")]
public string FirstName { get; set; }
[Required(ErrorMessage="Segundo nombre!")]
public string LastName { get; set; }
[Required(ErrorMessage="Edad")]
public int? Age { get; set; }
public string State { get; set; }
public string CountryID { get; set; }
[Required(ErrorMessage="Phone Number")]
public string PhoneNumber { get; set; }
}
ViewModel
public class CustomerViewModel
{
public CustomerModel Customer { get; set; }
public string Phone1a { get; set; }
public string Phone1b { get; set; }
public string Phone1c { get; set; }
}
controller
public ActionResult Index()
{
CustomerViewModel Customer = new CustomerViewModel()
{
Customer = new CustomerModel(),
};
return View(Customer);
}
[HttpPost]
public ActionResult Index(CustomerViewModel c)
{
//ModelState.Add("Customer.PhoneNumber", ModelState["Phone1a"]);
// Let's manually bind the phone number fields to the PhoneNumber properties in
// Customer object.
c.Customer.PhoneNumber = c.Phone1a + c.Phone1b + c.Phone1c;
// Let's check that it's not empty and that it's a valid phone number (logic not listed here)
if (!String.IsNullOrEmpty(c.Customer.PhoneNumber))
{
// Let's remove the fact that there was an error!
ModelState["Customer.PhoneNumber"].Errors.Clear();
} // Else keep the error there.
if (ModelState.IsValid)
{
Response.Write("<H1 style'background-color:white;color:black'>VALIDATED</H1>");
}
return View("Index", c);
}
}
V iew
@model MVVM1.Models.CustomerViewModel
@using (Html.BeginForm("Index", "Detail"))
{
<table border="1" cellpadding="1" cellspacing="1">
<tr>
<td>@Html.LabelFor(m => m.Customer.FirstName)</td>
<td>
@Html.TextBoxFor(m => m.Customer.FirstName)
@Html.ValidationMessageFor(m => m.Customer.FirstName)
</td>
</tr>
<tr>
<td>@Html.LabelFor(m => m.Customer.LastName)</td>
<td>
@Html.TextBoxFor(m => m.Customer.LastName)
@Html.ValidationMessageFor(m => m.Customer.LastName)
</td>
</tr>
<tr>
<td>@Html.LabelFor(m => m.Customer.Age)</td>
<td>
@Html.TextBoxFor(m => m.Customer.Age)
@Html.ValidationMessageFor(m => m.Customer.Age)
</td>
</tr>
<tr>
<td>@Html.LabelFor(m => m.Customer.PhoneNumber)</td>
<td width="350">
@Html.TextBoxFor(m => m.Phone1a, new { size="4", maxlength="3" })
@Html.TextBoxFor(m => m.Phone1b)
@Html.TextBoxFor(m => m.Phone1c)
<div>
@Html.ValidationMessageFor(m => m.Customer.PhoneNumber)
</div>
</td>
</tr>
<tr>
<td></td>
<td>
<input type="submit" value="Submit" /></td>
</tr>
</table>
}
Davvero buoni punti. Buona idea sulla creazione di una proprietà IsValid. – SaltProgrammer