2024 Entity framework ienumerable

Entity framework ienumerable

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WebApr 12, 2024 · LINQ can query any data source that implements the IEnumerable interface, such as arrays, collections, XML, or databases. ... Entity Framework also provides a rich set of features, such as change ... WebNov 23, 2024 · Whereas Task> represents a single asynchronous operation with a return type IEnumerable. Let's apply these knowledge to a WebAPI: From an HTTP consumer point of view there is no difference between Task> and ActionResult .

c# - Issues updating moq creating mock dbSet with T objects …

WebMay 19, 2014 · 2 Answers. Sorted by: 2. I use IEnumerable as sometimes this function is used for normal List s. You may want to consider making an IQueryable overload as well: … WebFeb 28, 2024 · An example of a queryable collection would be an Entity Framework DbSet or a LINQ to SQL Table. The key difference between IEnumerable and IQueryable is … lawn bottle dryer

c# - Convert Entity Object into IEnumerable - Stack Overflow

WebMar 11, 2024 · The main difference between IEnumerable and IQueryable in C# is that IQueryable queries out-of-memory data stores, while IEnumerable queries in-memory data. Moreover, IQueryable is part of .NET's System.LINQ namespace, while IEnumerable is in System.Collections namespace. IQueryable contains methods for constructing … WebMar 22, 2013 · entity-framework; ienumerable; iqueryable; Share. Improve this question. Follow edited Mar 22, 2013 at 0:55. Ken Kin. 4,493 3 3 gold badges 38 38 silver badges 76 76 bronze badges. asked Mar 22, 2013 at 0:49. dreza dreza. 3,585 6 6 gold badges 43 43 silver badges 55 55 bronze badges. 1. WebOct 1, 2014 · No, you can't get a IQueryable from SqlQuery *, this is because what IQueryable is doing is building a SQL string dynamically based on what select and where filters you put in. Because in SqlQuery you are providing the string Entity Framework can not generate that dynamic string.. Your options are either dynamically build the string … kaiser permanente healthconnect

Why DbSet doesn

WebMay 5, 2024 · But in Entity Framework, it is a little bit tricky… Queries with EF Core 3.1. Entity Framework comprises of its own query provider and data provider (which is built on top of existing storage-specific .NET data … lawnbott lb300el robotic mowerWebMar 31, 2024 · Return minimal interface that works for your particular case.. Often IEnumerable is enough and give more flexibility, but if you see yourself need to use .ToList() often (and for valid reasons) return IList or even List.. Notes. IEnumerable allows much easier lazy evaluation and unit testing (since it is smaller … kaiser permanente health insurance card

"WebEntity Framework would use ICollection because it needs to support Add operations, which are not part of the IEnumerable interface.. Also note that you were using ICollection, you were merely exposing it as the List implementation.List brings along with it IList, ICollection, and IEnumerable. As for your change, … " - Entity framework ienumerable

Entity framework ienumerable

JOIN локальной коллекции и DbSet в Entity Framework …

WebThat’s why DbSet (in Entity Framework) also inherits IQueryable to get the efficient query. Do not load every record, e.g. if Take(5), it will generate select top 5 * SQL in the background. This means this type is more friendly to SQL Database, and that is why this type usually has higher performance and is recommended when dealing with a ... WebAug 8, 2014 · 11. The design of IEnumerable doesn't allow it to be used with async / await. IEnumerator.MoveNext () cannot return any Task object that the caller can await, because it has got a fixed return type of bool. The async -aware version of IEnumerable is IDbAsyncEnumerable, and that's already implemented by DbQuery, from which …

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WebSep 10, 2024 · So I did the following : private readonly List _assignedWorkTimes; public virtual IEnumerable AssignedWorkTimes { get => _assignedWorkTimes; } But When I use EF Power tool to render the model I see no relationship between the two entities. Note: I make a unidirectional relationship (based … WebAug 31, 2024 · That’s why DbSet (in Entity Framework) also inherits IQueryable to get the efficient query. Do not load every record, e.g. if Take(5), it will generate select top 5 * SQL in the background. ... A List is an IEnumerable, so actually, there's no need to 'convert' a List to an IEnumerable. ...

WebJun 20, 2024 · With the entity as is (IEnumerable) I get the error: The property 'MyEntity.Names' could not be mapped, because it is of type 'IEnumerable' which is not a supported primitive type or a valid entity type. If I change the entity to: WebAug 12, 2024 · First the difference between List, IEnumerable and IQueryable . The content of List will always be loaded into memory, because it uses an array in the background. The content of IEnumerable will only load the requested item into the memory. Compiler sets up a state machine during compiling a method with …

WebJul 13, 2015 · В Entity Framework не существует способа задать маппинг таким образом, чтобы удаленные из коллекции (orphaned) позиции автоматически удалялись из базы. ... (IEnumerable customerDtos, CancellationToken token) { … Web1 day ago · Entity Framework query says column not found for a column I never specified 3 EF Migrations - There is already an object named '' in the database

WebOct 19, 2024 · 1. In order to set singular table names in EF Core 5 you can do the following. modelBuilder.Model.GetEntityTypes () .Configure (et => et.SetTableName (et.DisplayName ())); but then if you have value objects in you domain they will all be treated as entity types and created as tables in the database.

WebDec 4, 2013 · ADO.NET Entity Framework and LINQ to Entities https: ... IEnumerable returns a list that is the actual querying took place and you get the results. ToList is isued to force running the query and returning these enumerable results... lawnbott lb1200 spyder robotic mowerWeb2 days ago · I'm working on upgrading testing project from .NET Framework to .NET 6 that utilizes Moq. I have the following function that is used to create a Mock of a DbSet object by using the provided set of lawnbott partsWebJan 17, 2024 · Этот код не работает в Entity Framework 6 вообще. В Entity Framework Core — работает, но всё будет выполнено на стороне клиента и в случае, когда в базе миллионы записей — это не выход. lawn boundaryWebJun 16, 2015 · 2. You can not use Include with a IEnumerable, It only works with IQueryable, when you invoke in your repository query.ToList (); you query is retrieved from database to memory in a IEnumerable and when your data is in memory Include doesn't work. You can pass the objects that you want to include in your query as a parameter … lawnbott robotWebFeb 28, 2024 · An example of a queryable collection would be an Entity Framework DbSet or a LINQ to SQL Table. The key difference between IEnumerable and IQueryable is how they handle data retrieval . When using IEnumerable, data … kaiser permanente health information releaseWebOct 7, 2024 · IEnumerable is meant for querying collections only. It is the backbone for the LINQ framework. It is always an abstraction of some other collection such as Collection, List, or Array.The interface only provides a GetEnumerator method that returns an instance of IEnumerator that enables the walking of the extending … kaiser permanente health podcasts for stressWebFeb 12, 2012 · Entity Framework would simply ignore navigation properties defined as IQueryable. More of a standard is IEnumerable as it is the least common denominator. Iqueryable can be returned if you want extra querying functionality to the caller without having 10 repository methods to handle varying querying scenarios. kaiser permanente health portal