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genericsc#-3.0subsonic

In Subsonic 2.1 how do I make this generic call take one generic parameter?


Using Subsonic 2.1 I want to make my method call to results look like this: results(searchCriteria) right now I have to pass the CollectionType as well as the type.

Animal searchCriteria = GetSearchCritera();
AnimalCollection results = results<Animal, AnimalCollection>(searchCriteria);
// I want the call to be results(searchCriteria);

Here is the results method that I want to just take Y

public static T results<Y, T>(Y searchCriteria)
    where Y: ReadOnlyRecord<Y>, new()
    where T:  ReadOnlyList<Y, T>, new()
{
    using (IDataReader results = ReadOnlyRecord<Y>.Find(searchCriteria))
    {
        T a = new  T();
        a.Load(results);
        return a;
    }
}

Solution

  • I made this class:

        public class ConcreteList<T> : ReadOnlyList<T, ConcreteList<T>> where T: ReadOnlyRecord<T>, new()
        {
            public ConcreteList() { }
        }
    

    changed this code:

        public static ConcreteList<T> results2<T>(T searchCriteria)
            where T : ReadOnlyRecord<T>, new()
        {
            using (IDataReader results = ReadOnlyRecord<T>.Find(searchCriteria))
            {
                ConcreteList<T> a = new ConcreteList<T>();
                a.Load(results);
                return a;
            }
        }
    

    and I'm able to call it like this:

        Animal searchCriteria = GetSearchCritera();
        ConcreteList<Animal> results = results2(searchCriteria);
    

    Oh yeah I wanted this to be an extension method:

    public static class ReadOnlyRecordExtensions
    {
        public static ConcreteList<T> ExecuteFind<T>(this T searchCriteria)
                where T : ReadOnlyRecord<T>, new()
        {
            using (IDataReader results = ReadOnlyRecord<T>.Find(searchCriteria))
            {
                ConcreteList<T> list = new ConcreteList<T>();
                list.Load(results);
                return list;
            }
        }
    }