jon
on Apr 11, 2019 07:10 AM
6619 Views
hi
in my OrderItems table i need a composite key as
Id, ProductCode,ProductVariant
I tested insert in sqlite with null ProductVariant but from webapi post
i recive error
InvalidOperationException: Unable to track an entity of type 'OrderItem' because primary key property 'ProductVariant' is null.
Microsoft.EntityFrameworkCore.ChangeTracking.Internal.NullableKeyIdentityMap<TKey>.Add(InternalEntityEntry entry)
How can solve?
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jon
on Apr 14, 2019 04:05 AM
18
Now i solved with a raw query and inside
if (item.Codvar == null)
Codvar = new SqliteParameter("@Codvar", DBNull.Value);
else
Codvar = new SqliteParameter("@Codvar", item.Codvar);