Decrease IEnumerable usage

[hhvrc]

This will reduce the risk of multiple enumeration crashes and probably improve performance

[LucHeart]

im not entirely sure what would make you think it causes Crashes?

If anything this just imcreases heap allocations, especially in places where you now Return Array instead of an IEnumerable

[hhvrc]

Oh, it wont exactly crash but multiple enumeration is not that good...
Most places ive changed from IEnumerable<> to array, ICollection<> or IList<> ive made sure it will not negativley impact the allocations.
When ASP.NET controllers allocate a binded model for a controller it will allocate anyways behind the ienumerable

[hhvrc]

I just noticed though that returning ienumerable from controllers will improve performance, im implementing changes...