public async Task <IActionResult> PutPackages(int id, Packages packages)
{
if (id != packages.PackageId)
{
return(BadRequest());
}
_context.Entry(packages).State = EntityState.Modified;
try
{
await _context.SaveChangesAsync();
}
catch (DbUpdateConcurrencyException)
{
if (!PackagesExists(id))
{
return(NotFound());
}
else
{
throw;
}
}
return(NoContent());
}
public async Task <IActionResult> PutSuppliers(int id, Suppliers suppliers)
{
if (id != suppliers.SupplierId)
{
return(BadRequest());
}
_context.Entry(suppliers).State = EntityState.Modified;
try
{
await _context.SaveChangesAsync();
}
catch (DbUpdateConcurrencyException)
{
if (!SuppliersExists(id))
{
return(NotFound());
}
else
{
throw;
}
}
return(NoContent());
}
private void HandleConcurrencyError(DbUpdateConcurrencyException ex)
{
ex.Entries.Single().Reload();
var state = context.Entry(selectedSupplier).State;
if (state == EntityState.Detached)
{
MessageBox.Show("Another user has deleted that Supplier.",
"Concurrency Error");
}
else
{
string message = "Another user has updated that Supplier.\n" +
"The current database values will be displayed.";
MessageBox.Show(message, "Concurrency Error");
}
this.DisplayLVSuppliers();
}
