使用Entity Framework的Linq查询没有结果

Question

I am doing a query with linq and entity framework. The database I'm using is Oracle. Here is the code :

Entities bdd = contextWrapper.GetContext();

data = (from table in bdd.COP_PRDTICSOURES
        where (table.IDTTIC==ticketId && table.IDTPRD==productId)
        select table).AsEnumerable();

When I look at the variable bdd.COP_PRDTIC_SOURES using a debugger, it contains an entry matching my two criteria. However, after the execution of the query, the data variable contains no result.

Is there something wrong with my syntax ?

Some additional information:

• The entity i'm looking for isn't commited in the database when I perform this query. It's created before in the same transaction.
• I use a foreach on the data after, so it's not a problem of lazy loading.

Answer 1

AsEnumerable does not load data from DB. Calling it you are not executing the actual query, just changing how it is going to be executed in its entirety.

Use ToArray or ToList instead to load data explicitly. Or call foreach on this collection.