Best class to store class models

Question

Hi everyone, there are many class available to store class models like List , IEnumerable, IQueryable, ObservableCollection, which class is in best use as per industry that can support all sorts of searching, manipulating with high performance. Thanls Devendra

Sachin Singh · Answer

each one serves purely different purposes List :- Add,Remove,Count and Loop through (So can never be used in UI, anybody can manipulate data, the sole pupose of UI is to Loop through a collection or take user inputs and send to Business layer, in business layer you can use List but not in web form's code behind or MVC controller, it is wrong architecture) . IEnumerable: - just loop through collection (Best suited for UI (Controller,web form's Code behind)) IQueryable :- Gets filtered data from database (best for search functionality in business layer) ObservableCollection: - To notify if data is manupulated inside collection.(use it accordingly) I n short , no collection is better than others each have different purpose , otherwise microsoft dev is not a fool who will create so many collections for nothing.

Devendra Kumar · Answer

Thanks mate.. understood that they have been evolving over time... But be gentle and kind.. I don't expect abusing behaviour.

Rajanikant Hawaldar · Answer

@Devendra Kumar, If there can be one class to support searching sorting inserting, notifying UI thread with high performance then why we/microsoft will be having these many???

Sanjay Mrinal Kumar Kodangi · Answer

IQueryable is always suggestable as you can perform all operations which you do on SQL server. Once you have queried, then you can apply List or collection what ever you required.