C# IEnumerable Nedir Üzerinde Buzz söylenti

C# IEnumerable Nedir Üzerinde Buzz söylenti

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@OlivierJacot-Descombes: Short of using Reflection, there's no way of knowing whether an IList which allows anything of a given type to be stored by index will allow everything of that type to be stored by index.

What rights does an employee retain, if any, who does hamiş consent to being monitored on a work IT system?

Now the thing to note is that IEnumerable brought all the 5 records present in Salary table and then performed an in-memory filteration on the client side to get bütünüyle 2 records. So more data (3 additional records in this case) got transferred over the network and ate up the bandwidth unnecessarily.

For example, if you do derece 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.

(as per Mike P's excellent answer) wrap an enumerator to pretend to be enumerable, there are some things that you emanet't really do - for example, it is hoped

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IQueryable allows for out-of memory things like a remote veri source, such kakım a database or web service.

C# IEnumerator kullanarak MySQL veritabanından data çekip bu verileri DataGridView kontrolüne nasıl ekleyebileceğimizi gösteren örnek harf kötüda mekân almaktadır.

So you have a common IEnumerator-implementing class for all ten, and each collection just özgü to implement IEnumerable using that enumerating class. It's about separation of concerns, treating holding veri and enumerating veri as separate operations.

When you write a query using IEnumerable you are using the advantages of deferred execution and your query running when it C# IEnumerable Temel Özellikleri accessed.

Then with a IQueryable the generated SQL will contains “where name = “a”, but with a IEnumerable many more roles will be pulled back from the database, then the x.name = “a” check will be done by .NET.

The reason, of course, is that someone birey call the first method passing in an array object, a List object, a String object, and C# IEnumerable Nedir so on — any object whose type implements IEnumerable.

If the collection supports indexers, you could also iterate over it with the classic C# IEnumerable Nedir for loop method but the Iterator pattern provides some birçok extras like the ability to C# IEnumerable Kullanımı add synchronization for threading.

By "functionally equivalent," I mean that's actually what the compiler turns the code into. You sevimli't use foreach on baz C# IEnumerable Nerelerde Kullanılıyor in this example unless