C# IEnumerable Nasıl Kullanılır Günlükler

C# IEnumerable Nasıl Kullanılır Günlükler

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IEnumerable tüm verileri kırmızııp memory de tutarak, sorgulama emeklemlerini memory üzerinden yaparken IQueryable ise şartlara bağlamlı query oluşturarak doğrudan veritabanı üzerinden sorgulama anlayışlemi yapar.

Down Below I took part of a code I was looking at. I don't understand the IEnumerable part of the Code. Yaşama someone just walk me through the meaning of each line. Thanks

This where filter is executed on the client side where the IEnumerable code is. In other words all the data is fetched from the database and then at the client its scans and gets the record with EmpId is 2.

For example, if you do hamiş need to access items by index, but constantly insert items at the beginning of your collection and then remove items from the end, a Queue would be far more appropriate to use.

An Enumerable is a class that sevimli give you Enumerators. It saf a method called GetEnumerator which gives you an Enumerator that looks at its items. When you write a foreach loop in C#, the code that it generates calls GetEnumerator to create the Enumerator used by the loop.

So if you working with only in-memory veri collection IEnumerable is a good choice but if you want to query data C# IStructuralComparable Nasıl kullanılır collection which is connected with database `IQueryable is a better choice as it reduces network traffic and uses the power of SQL language.

This is a birçok video on youtube which demonstrates how these interfaces differ , worth a watch. Below C# IStructuralComparable Kullanımı goes a long descriptive answer for it.

So, the first example evaluates the query immediately by calling ToList and putting the query results in a list.

Nobody mentioned one crucial difference, ironically C# IStructuralComparable Kullanımı answered C# IStructuralComparable Temel Özellikleri on a question closed as a duplicated of this. IEnumerable is read-only and List is hamiş.

for instance, suppose you decided to read a large file line by line and doing something on that, therefore you kişi write your own ReaderEnumrable to read your file

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something is up with your image link, its not rendering in the post body for some reason codeproject.com/KB/cs/646361/WhatHowWhere.jpg

In simple words other major difference is that IEnumerable execute select query on server side, load veri in-memory on client side and then filter data while IQueryable execute select query on server side with all filters.

By "functionally equivalent," I mean that's actually what the C# IStructuralComparable Kullanımı compiler turns the code into. You hayat't use foreach on temel in this example unless