Include than order by the field in linq

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WebNov 8, 2014 · The problem is that when adding .Include (x => x.Children), the ORDER BY statement that Entity Framework adds to the generated SQL causes the query to take a long time to execute - something like the below: ORDER BY [Project2]. [Id1] ASC, [Project2]. [Id2] ASC, [Project2]. [Id] ASC, [Project2]. [C4] ASC WebAug 11, 2024 · var users = _context.User.Select (x => x.LastName).Distinct () // (1) .SelectMany (key => _context.User.Where (x => x.LastName == key).Take (1)) // (2) // the rest is the same as the origonal .OrderBy (x => x.LastName) .Take (10) .ToList (); Share Improve this answer Follow answered Aug 11, 2024 at 11:21 Ivan Stoev 191k 14 298 327 2

linq - How to dynamically order by certain entity properties in …

WebJul 15, 2011 · This is LINQ to Objects not LINQ to Entities. Above Order By clause will call OrderBy defined in Enumerable That is ordering will be done in memory. Hence it will take long time Edit It looks like a MySQL related issue You may try something like this. WebThis method compares keys by using the default comparer Default. This method performs a stable sort; that is, if the keys of two elements are equal, the order of the elements is preserved. In contrast, an unstable sort does not preserve the order of elements that have the same key. In query expression syntax, an orderby (Visual C#) or Order By ... granite city county

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WebApr 12, 2024 · I found Removing "RE:" (and alikes) from email subject using RegEx class which is great at stripping re: etc. from the incoming subject. But, we have instances where the ticket title includes the RE:. I anticipate that it could include FW: and FWD: and the mixed and lower case versions of all of those. What's the cleanest Linq or SQL query to ... WebMay 28, 2009 · LINQ - Dynamic OrderBy in VB.Net. I am trying to do something similar to this sample code from Phil Haack to VB, and LINQ Orderby is giving me problems - and I can't figure out how to do this. Entire method posted for completenes. public ActionResult DynamicGridData (string sidx, string sord, int page, int rows) { var context = new ... WebLINQ includes five sorting operators: OrderBy, OrderByDescending, ThenBy, ThenByDescending and Reverse LINQ query syntax does not support OrderByDescending, … granite city county il

Order by a field which is a Navigation Property to an Entity - Linq to …

WebApr 2, 2013 · The Include is a Eager Loading function, that tells Entity Framework that you want it to include data from other tables. The Include syntax can also be in string. Like this: db.Courses .Include ("Module.Chapter") .Include ("Lab") .Single (x => x.Id == id); But the samples in LinqPad explains this better. Share Improve this answer Follow WebMar 30, 2016 · Service layer (the service models' (DTO) properties match whatever the client-side wants to order by) Domain layer (it exposes repository interfaces to access persisted objects) ORM layer (it implements the repository and it uses Entity Framework 7 (a.k.a Entity Framework Core) to access a SQL Server database) chingy youtubeWebSep 1, 2016 · if there is a relationship between customers and orders you do not need to join, and just adapt your select statemebt by something like this. select new {CustomerID = c.CustomerId, TotalOrders = (t == null ? 0 : c.Orders.Count ())}; – Laurent Lequenne Aug 31, 2016 at 23:10 Add a comment 3 Answers Sorted by: 0 chin-hae meaning

"WebThe ThenBy and ThenByDescending extension methods are used for sorting on multiple fields. The OrderBy () method sorts the collection in ascending order based on specified … " - Include than order by the field in linq

Include than order by the field in linq

c# - Strip re: etc from SQL Linq query - Stack Overflow

WebApr 13, 2024 · 6. Linq. If you are a networking professional, Linq can be an ideal digital business card for you. Linq allows you to share information with prospects using a customizable page. Key Features: You can create multiple profiles for different settings under one account. You can set up reminders to follow up with new contacts. WebDec 6, 2011 · The Dynamic LINQ library exposes a set of extension methods on IQueryable corresponding to the standard LINQ methods at Queryable, and which accept strings in a special syntax instead of expression trees. You need to include the Library separately. Include System.Linq.Dynamic.Core. The Author of this Library is not Microsoft..

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WebNov 21, 2008 · private static LambdaExpression GenerateSelector (String propertyName, out Type resultType) where TEntity : class { // Create a parameter to pass into the Lambda expression (Entity => Entity.OrderByField). var parameter = Expression.Parameter (typeof (TEntity), "Entity"); // create the selector part, but support child properties PropertyInfo … WebSep 29, 2024 · 1. You could try breaking out the top layer Linq statement into a foreach and creating a list for each type of NetStatus that you have. You can then combine your lists for an ordered result. foreach (var r in reports) { var newList = r.Nets.Where (n => n.NetStatus.Equals ("New")).OrderBy (n => n.NetId).ToList (); var upatedList = …

WebThe Linq OrderBy method in C# is used to sort the data in Ascending Order. The most important point that you need to keep in mind is that this method is not going to change the data rather it is just going to change the order … WebLINQ-OrderBy sorts the values in the collection on the basis of the specified field in ascending or descending manner. By default, it sorts the collection of elements in …

WebOct 30, 2014 · As a performance measure, Include () allows you to indicate which related entities should be read from the database as part of the same query. Using the same example, this might bring in all of the related order headers, but none of the other records: var customersWithOrderDetail = context.Customers.Include ("Orders").ToList (); WebAug 18, 2024 · In order to use it, just type: yourList.AsQueryable ().ApplySort ("thefieldName") If you put a - before the fieldName, then the order by will be descending. yourList.AsQueryable ().ApplySort ("-thefieldName") Share Improve this answer Follow answered Aug 18, 2024 at 16:56 Luis Teijon 4,721 7 36 57 Add a comment 0

WebDec 17, 2010 · The solution is Linq.Dynamic You do it like this: (from c in Context.AccountCharts where c.Account_FK == account && c.Year_FK == year select c).OrderBy (order); You have to download the System.Linq.Dynamic.dll and include it into your project. Is there a way to order a linq query by the name of a field. like this:

WebFeb 25, 2024 · 2024 and still broken, this is also not a duplicate. The OP is asking about OrderBY, which is not the same as the DUPLICATE answer. So this is the Correct answer!! FOR OTHERS LOOKING - If you do OrderBy inside ThenInclude, EF core will use the PK first then the orderby field, so your sort will not have the expected outcome. granite city crossword clueWebAug 8, 2024 · order the Menus by Menu.Sorting, and this code var menus = await Context.Menu.Include (m => m.MenuDetails).Where (s => s.Status == 0).OrderBy (o => … chinhae naval base lodgingWebJan 12, 2024 · // Matches on start, so uses an index (on SQL Server) var posts1 = context.Posts.Where (p => p.Title.StartsWith ("A")).ToList (); // Matches on end, so does not use the index var posts2 = context.Posts.Where (p => p.Title.EndsWith ("A")).ToList (); granite city crosswordWebUnfortunately eager loading ( Include) doesn't support any filtering or sorting of loaded child collections. But as stated in the accepted answer, you can sort each collection after they've been eager loaded. I wrote an extension method that handles sorting a collection by a child property easily in place so there is no need for reassignment: chinhae port depthWebJan 22, 2013 · You need to put all calls to Include () first. This should work: var myOrder= db.Orders.Include ("OrderItems") .Include ("OrderItems.Product") .Include … chinhae naval base housingWebSep 15, 2024 · A sorting operation orders the elements of a sequence based on one or more attributes. The first sort criterion performs a primary sort on the elements. By specifying a … chingy why your eyes so chinkyWebYou can use a comparison in OrderBy or ThenBy to perform a conditional sorting. list.OrderByDescending (i => i == 3).ThenBy (i => i); I use OrderByDescending because i want matching results first ( true is "higher" than false ). Share Improve this answer Follow edited Nov 14, 2024 at 13:30 answered Mar 29, 2012 at 21:38 Tim Schmelter chinhae navy base lodging