Question

I have this method that I use with EF

RetryGetWithExpression<city, List<city>>(u => u.Take(10).ToList());

public static TValue RetryGetWithExpression<T, TValue>(
        Func<ObjectSet<T>, TValue> func)
    where T : class
{
    var entitySet = entitiesContext.CreateObjectSet<T>();
    return func(entitySet);
}

The above code works with the table entities generated by EF. What I am trying to do is to change the code in such way that it works with stored procedures.

This is the code that executes the SP:

Entities G = new Entities();
ObjectResult<retrieveMedia_Result> F = G.retrieveMedia(1);

When I try to convert RetryGetWithExpression to accept SPs, I get a problem that retrieveMedia is instance method and I cant pass it as u.retrieveMedia(1)

RetryGetWithExpression<Entities, ObjectResult<retrieveMedia_Result>>(
    u => u.retrieveMedia(1));

public static TValue RetryGetWithExpression<T, TValue>(
        Func<ObjectSet<T>, TValue> func)
    where T : class
{

}

How to change the above code so that It works with SPs?

Answer 1

Try

RetryGetWithExpression<ObjectResult<retrieveMedia_Result>>(u => u.retrieveMedia(1));

public static TValue RetryGetWithExpression<TValue>(Func<Entities, TValue> func)
{
    return func(entitiesContext);
}