Using entity framework, "order by Col1, Col2."

Adding existing entities to a collection on a newly built object using the entity framework

"Attach" is not permitted since the order has not yet been stored. By using "Add," you may instruct Entity Framework to add a new contact. Therefore, you are only left with one choice. The contact has to be loaded....The quickest approach to achieve it is as follows:...OrderDetails context = new OrderDetails(); Contact contact = context.GetObjectBy...

In entity framework, how do I sort by column with null values last?

I'm not sure whether there's a switch you can turn on or off. If not, a straightforward strategy would likely be something like this:... using (var context = new DomainEntities()) { var FirstPart = context.Users.Where(u => u.LastName != null); var SecondPart = context.Users.Where(u => u.LastName == null); var Result =...

LINQ order a collection of objects by date in descending order

Given that you are discussing the date format, I assume that the datatype of the...DateCreated... building is...string... . If so, take the following action:....OrderByDescending(d => Convert.ToDateTime(d.DateCreated)).Take(10) ...in addition,...Distinct()... if you don't define your own equality to compare, it won't have much of an impact.

Entity Framework 6 Batch Updates and AuditLog using Entity Framework Extended

You must make the Auditor available....var auditConfiguration = AuditConfiguration.Default; auditConfiguration.IncludeRelationships = true; auditConfiguration.LoadRelationships = true; auditConfiguration.DefaultAuditable = true; ...simply include it where your app is initially launched. For instance, Global.asax.cs...edited...As far as I'm aware, E...

Prevent Entity Framework adding ORDER BY when using Include

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Using expression trees to create a custom order by in linq to entities

Your code attempts to produce something similar...Queryable.OrderBy(queryableData.Expression, ExtValue105 => ExtValue105)... I don't see why you would think that would work....According to my understanding of your inquiry, you must dynamically build a phrase like...attribute => attribute.ExtValue105... you may use it to call after that....OrderBy()...

Entity framework composite primary key - how to get order of columns

Do this:... var adapter = (IObjectContextAdapter)db; var objectContext = adapter.ObjectContext; var objectSet = objectContext.CreateObjectSet<SomeEntity>(); var entitySet = objectSet.EntitySet; var keyNames = entitySet.ElementType.KeyMembers .Select(e => e.Name).ToList(); ...Add this if you're looking for...

Entity Framework 6 inverting column order for composite foreign keys

You must alter the sequence of...Beta... columns with foreign keys:...public class Beta { [Key, Column(Order = 1)] public string Beta_1 { get; set; } [Key, Column(Order = 3), ForeignKey("Alpha")] public string Alpha_2 { get; set; } [Required, ForeignKey("Alpha"), Column(Order = 2)] public string Alpha_1 { get; set; } pu...

What logic determines the insert order of Entity Framework 6

You may place an order before utilizing the Add function, then save it. Has this been tried? Would it be helpful?

LINQ to SQL - order by, group by and order by each group with skip and take

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