using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.RazorPages;
using RazorPagesContacts.Data;
namespace RazorPagesContacts.Pages
{
public class CreateModel : PageModel
{
private readonly AppDbContext _db;
public CreateModel(AppDbContext db)
{
_db = db;
}
[BindProperty]
public Customer Customer { get; set; }
public async Task<IActionResult> OnPostAsync()
{
if (!ModelState.IsValid)
{
return Page();
}
_db.Customers.Add(Customer);
await _db.SaveChangesAsync();
return RedirectToPage("/Index");
}
}
}
public async Task<IActionResult> OnPostAsync()
{
if (!ModelState.IsValid)
{
return Page();
}
_db.Customers.Add(Customer);
await _db.SaveChangesAsync();
return RedirectToPage("/Index");
}
By convention, the PageModel class is called <PageName>Model and is in the same namespace as the page.
Using a PageModel code-behind file supports unit testing, but requires you to write an explicit constructor and class.
Pages without PageModel code-behind files support runtime compilation, which can be an advantage in
development.
The page has an OnPostAsync handler method, which runs on POST requests (when a user posts the form). You can
add handler methods for any HTTP verb. The most common handlers are:
OnGet to initialize state needed for the page. OnGet sample.
OnPost to handle form submissions.
The Async naming suffix is optional but is often used by convention for asynchronous functions. The OnPostAsync
code in the preceding example looks similar to what you would normally write in a controller. The preceding code is
typical for Razor Pages. Most of the MVC primitives like model binding, validation, and action results are shared.
The previous OnPostAsync method:
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