c# - Using ToListAsync on an IQueryable - Stack Overflow We have a simple database and we are trying to retrieve db records asynchronously with EntityFramework in an MVC5 application like so: However we do not even get the option of using the ToListAsync (only ToList) even though the Where clause produces an IQueryable We are using EF6 of course Any help would be greatly appreciated
Task lt;IEnumerable lt;MyObject gt; gt; does not contain a definition for . . . - Reddit Task<IEnumerable<MyObject>>' does not contain a definition for 'ToListAsync' and the best extension method overload 'QueryableExtensions ToListAsync (IQueryable)' requires a receiver of type 'IQueryable' on this line list = (await conn QueryAsync<MyObject>(query, new { id = newId })) ToListAsync(); the method returns type Task<List<MyObject>>
DbSet lt;TodoItem gt; does not contain a definition for ToListAsync . . . After creating the method GET: api Todo 5 [HttpGet (" {id}")] public async Task<ActionResult<TodoItem>> GetTodoItem (long id) { var todoItem = await _context TodoItems FindAsync (id); if (todoItem == null) { return NotFound (); } return to
EF5 IQueryable does not contain a definition for ToListAsync Use this and your ToListAsync() should work just fine I'm not totally sure but maybe you can use extension method like below public static async Task<List<T>> ToListAsync<T> (this IQueryable<T> obj) => await Task Run(() => obj ToList());
Be careful with ToListAsync and ToArrayAsync in Entity Framework Core Entity Framework has two methods for converting a query to a list or an array: ToListAsync and ToArrayAsync Of course there is also the sync version of these methods: ToList and ToArray And sometimes, you should use the latter one!
How to resolve error: IEnumerable does not contain a definition for . . . In this case, if we call AsQueryable ()ToListAsync () on an IEnumerable<T> sequence we get another error: “The source IQueryable doesn’t implement IAsyncEnumerable Only sources that implement IAsyncEnumerable can be used for Entity Framework asynchronous operations ” To resolve this error we should use the Task FromResult () method:
IQueryable does not contain a definition for ToList Hi, I'm trying to do the following, but receiving this error: 'IQueryable<List<Account>>' does not contain a definition for 'ToList' and the best extension method overload 'Enumerable ToList<Account> (IEnumerable<Account>)' requires a receiver of type 'IEnumerable<Account>'