How do you use AsEnumerable?
How do you use AsEnumerable?
AsEnumerable() in C# To cast a specific type to its IEnumerable equivalent, use the AsEnumerable() method. It is an extension method. int[] arr = new int[5]; arr[0] = 10; arr[1] = 20; arr[2] = 30; arr[3] = 40; arr[4] = 50; Now, get the IEnumerable equivalent.
Does AsEnumerable execute the query?
5 Answers. Calling AsEnumerable( ) does not execute the query, enumerating it does. IQueryable is the interface that allows LINQ to SQL to perform its magic.
What is AsQueryable?
AsQueryable is a method that allow the query to be converted to an instance of IQueryable. This offers an excellent benefits in real word scenarios where you have certain methods on an entity that return an IQueryable of T and some methods return List.
Why we use IEnumerable in LINQ?
IEnumerable is best to query data from in-memory collections like List, Array, etc. While query data from a database, IEnumerable execute a select query on the server side, load data in-memory on a client-side and then filter data. IEnumerable is suitable for LINQ to Object and LINQ to XML queries.
What is AsEnumerable?
The AsEnumerable method is a generic method. It allows you to cast a specific type to its IEnumerable equivalent. Example. We use AsEnumerable on an int array. AsEnumerable is an extension method and you must include the System.
What is AsEnumerable in Uipath?
What is AsEnumerable()? It is a generic method, which allows you to cast a specific type to its IEnumerable equivalent. From row in DT.AsEnumerable() Here AsEnumerable() method will returns an IEnumerable object. This can be used in a LINQ expression or method query.
What is AsEnumerable IQueryable?
AsEnumerable does not actually do anything except apply the as operator to your IQueryable. Accordingly, any future method you apply to your object will use the System.
What is the difference between AsEnumerable and AsQueryable?
AsEnumerable preserves deferred execution and does not build an often useless intermediate list. On the other hand, when forced execution of a LINQ query is desired, ToList can be a way to do that. AsQueryable can be used to make an enumerable collection accept expressions in LINQ statements.
Do I really need use AsQueryable () on collection?
3 Answers. IQueryable is required/recommended for objects coming from remote source (like from database). For in memory collections it is of no use. AsQueryable is used when expression tree is to be constructed.
What is AsEnumerable in VB net?
AsEnumerable: casts a collection to IEnumerable of same type. This Lambda Expression sample casts array of strings to its corresponding IEnumerable. This Lambda Expression sample casts array of strings to its corresponding IEnumerable.
What is AsEnumerable in LINQ C#?
In LINQ, AsEnumerable() method is used to convert/cast specific types of given list items to its IEnumerable equivalent type.
What’s the difference between asenumerable and tolist in LINQ?
The advantage of using AsEnumerable vs. ToList is that AsEnumerable does not execute the query. AsEnumerable preserves deferred execution and does not build an often useless intermediate list. On the other hand, when forced execution of a LINQ query is desired, ToList can be a way to do that.
What’s the use of asenumerable ( MSDN )?
(MSDN). What’s the use? AsEnumerableis frequently used to switch from any IQueryableimplementation to LINQ to objects (L2O), mostly because the former does not support functions that L2O has. For more details see What is the effect of AsEnumerable() on a LINQ Entity?.
When to use asenumerable vs.tolist in Entity Framework?
For example, in an Entity Framework query we can only use a restricted number of methods. ToList – which converts an IEnumerable to a List – is often used for this purpose as well. The advantage of using AsEnumerable vs. ToList is that AsEnumerable does not execute the query.
What does the asenumerable < tsource > method do?
The AsEnumerable (IEnumerable ) method has no effect other than to change the compile-time type of source from a type that implements IEnumerable to IEnumerable itself.