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Entity Framework 6 - Knowledge Base (KB)

5 results in tag: linq-to-objects

Linq conversion instructions. Linq to ParallelQuery IQueryable

var transactions = from t in context.Transactions group t.Create_Date_Time by t.Participation_Id into t1 select new { ParticipationId = t1.Key, CreateDate...
c# entity-framework linq linq-to-entities linq-to-objects
asked by manu

Framework for Entities In Windows Forms, how do I link a textbox to a model?

Using Entity data model in a Windows Forms Project, I want to bind simultaneously Orders entity to datagridview and to textBox, and textBox has to display OrderID value depending on the current line in the datagrid....The code I used in Form load event i...
c# entity-framework linq-to-entities linq-to-objects winforms
asked by Sami-L

It is preferable to utilize Entity Framework. First() or . For "TOP 1," how about (1)?

We are implementing some EF data repositories, and we have some queries which would include ...TOP 1...I have read many posts suggesting to use ....Take(1)... The code I'm reviewing uses ....First()...I understand that both of these produce the same resul...
entity-framework ienumerable linq linq-to-objects sql
asked by Matthew

Linq At least one object must implement IComparable

I am trying to order a List of Entities that contains another list of Entities. I have implemented IComparable for all entities and still get the exception. All of the examples I have seen address the issue where you have one list and you order by a given...
c# entity-framework linq linq-to-entities linq-to-objects
asked by Shiloh

Method cannot be translated into a store expression syntax error

I'm using LINQ to Entity and getting error ...Method cannot be translated into a store expression...var myStrings = from keys in keyTable join values in valuesTable on keys....
c# entity-framework linq linq-to-entities linq-to-objects
asked by Neo

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