public async Task <IActionResult> Edit(int id, [Bind("CustomerId,CarId,Id,Timestamp")] Order order)
{
if (id != order.Id)
{
return(NotFound());
}
if (ModelState.IsValid)
{
try
{
_context.Update(order);
await _context.SaveChangesAsync();
}
catch (DbUpdateConcurrencyException)
{
if (!OrderExists(order.Id))
{
return(NotFound());
}
else
{
throw;
}
}
return(RedirectToAction(nameof(Index)));
}
ViewData["CarId"] = new SelectList(_context.Cars, "Id", "Id", order.CarId);
ViewData["CustomerId"] = new SelectList(_context.Customers, "Id", "Id", order.CustomerId);
return(View(order));
}
public async Task <IActionResult> Edit(int id, [Bind("FirstName,LastName,Id,Timestamp")] Customer customer)
{
if (id != customer.Id)
{
return(NotFound());
}
if (ModelState.IsValid)
{
try
{
_context.Update(customer);
await _context.SaveChangesAsync();
}
catch (DbUpdateConcurrencyException)
{
if (!CustomerExists(customer.Id))
{
return(NotFound());
}
else
{
throw;
}
}
return(RedirectToAction(nameof(Index)));
}
return(View(customer));
}
public async Task <IActionResult> Edit(int id, [Bind("Make,Color,PetName,Id,Timestamp")] Inventory inventory)
{
if (id != inventory.Id)
{
return(NotFound());
}
if (ModelState.IsValid)
{
var saved = false;
while (!saved)
{
try
{
_context.Update(inventory);
await _context.SaveChangesAsync();
saved = true;
}
catch (DbUpdateConcurrencyException ex)
{
if (!InventoryExists(inventory.Id))
{
return(NotFound());
}
else
{
foreach (var entry in ex.Entries)
{
if (entry.Entity is Inventory)
{
var proposedValues = entry.CurrentValues;
var databaseValues = entry.GetDatabaseValues();
foreach (var property in proposedValues.Properties)
{
var proposedValue = proposedValues[property];
var databaseValue = databaseValues[property];
//ToDo: decide which value should be written to the database
proposedValues[property] = proposedValue; //value to be saved
}
//Refresh original values to bypass next concurrency check
entry.OriginalValues.SetValues(databaseValues);
}
else
{
throw new NotSupportedException("Don't know how to handle the concurrency conflicts for " + entry.Metadata.Name);
}
}
}
}
}
return(RedirectToAction(nameof(Index))); //saved
}
return(View(inventory)); //invalid model status
}
