public async Task <IActionResult> OnPostAsync()
{
if (!ModelState.IsValid)
{
return(Page());
}
_context.Product.Add(Product);
await _context.SaveChangesAsync();
return(RedirectToPage("./Index"));
}
public async Task <IActionResult> OnPostAsync(int id)
{
if (!ModelState.IsValid)
{
return(Page());
}
var productToUpdate = await _context.Product
.Include(p => p.ID)
.FirstOrDefaultAsync(m => m.ID == id);
if (productToUpdate == null)
{
return(HandleDeletedProduct());
}
_context.Entry(productToUpdate).Property("RowVersion").OriginalValue = Product.RowVersion;
if (await TryUpdateModelAsync <Product>(
productToUpdate,
"Produkter",
s => s.Titel, s => s.Description, s => s.Price, s => s.ImageURL))
{
try
{
await _context.SaveChangesAsync();
return(RedirectToPage("./Index"));
}
catch (DbUpdateConcurrencyException ex)
{
var exceptionEntry = ex.Entries.Single();
var clientValues = (Product)exceptionEntry.Entity;
var databaseEntry = exceptionEntry.GetDatabaseValues();
if (databaseEntry == null)
{
ModelState.AddModelError(string.Empty, "Unable to save. " +
"The product was deleted by another user.");
return(Page());
}
var dbValues = (Product)databaseEntry.ToObject();
SetDbErrorMessage(dbValues, clientValues, _context);
Product.RowVersion = (byte[])dbValues.RowVersion;
ModelState.Remove("Product.RowVersion");
}
}
return(Page());
}
public async Task <IActionResult> OnPostAsync(int id)
{
try
{
if (await _context.Product.AnyAsync(
m => m.ID == id))
{
_context.Product.Remove(Product);
await _context.SaveChangesAsync();
}
return(RedirectToPage("./Index"));
}
catch (DbUpdateConcurrencyException)
{
return(RedirectToPage("./Delete",
new { concurrencyError = true, id = id }));
}
}
