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Questions tagged [entityset]

54 questions
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How do you sort an EntitySet

The MSDN documentation states that an EntitySet implements IBindingList (see 'Binding to EntitySets' at http://msdn.microsoft.com/en-us/library/bb546190.aspx) However, it can be clearly seen that an EntitySet does not implement this interface! So…
Chris Haines
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Error when deleting row from Silverlight 5 datagrid

I have an Silverlight 4 (ria 1.0) application which was upgraded today to Silverlight 5 (ria 1.0 sp2) Now I am getting the following error when I am trying to delete record from datagrid: at System.Windows.Controls.DataGrid.OnRemovedElement(Int32…
Vasyl Bodak
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Struggling with .ToList() returing an EntitySet<...>, not an IList<..>

I'm trying to retrieve a list of Id's from a collection that is a few levels deep in an object heirachy. When i try to do a ToList(), I keep getting an EntityList<> retrieved instead .. which means it's not allowing me to retrieve an instance's…
Pure.Krome
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Work with child EntitySet in databound detailsview

I am working with ASP.Net (forms) and Linq To SQL. I have a parent table called Feedback, a table called Tags and a table called FeedbackTags which allows me to relate tags to feedback items. I have a master/detail view (GridView/DetailsView) which…
Peter
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Dbml adds 1 to EntitySet name

Hi I got a dbml file, that starts to add a 1 to the end of a EntitySet name Is there any way I can permanently fix this? If I change it in the designer file, its just returns when the file is…
gulbaek
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How to store one entity class in another in specific relation between tables?

I have these relations in my data base: I need all authors related to my book stored in book entity class? I was trying to resolve this by using entityset but I can't use it because there is no primary key in BookAuthors table! Any kind of help…
Powerslave
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Where is EntitySet's "Results View"?

When looking at a linked EntitySet of a LINQ to SQL mapped entity, I see the following: I'd like to see the following (achieved by using the .AsQueryable() extension method) so that I can click the little refresh icon and see the content: Why…
Allon Guralnek
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what's difference between entity and entity set in dbms

i am getting confused about the entity and entity set in DBMS. do set of entities forms entity set? Just like set of Student Objects form Array of Students. should we compare a Table in Relational database to entity set or entity? If i compare…
java dev
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observableCollection to EntitySet

How do I assign a observableCollection into a EntitySet ?
Johnny
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ASP.NET MVC - Submit Form with complex Model with EntitySet

I'm struggling myself trying to make my form work with my models... So, I have 3 Models Account has_one -> Company has_many -> Individuals -> has_one Document So the account can have one company and many individuals with one document…
zanona
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linq one to many relationship stores only one member of list

I'm trying to set up a one to many relationship with linq on Windows Phone 8. My problem is that in the EntitySet<> field only one of the classes which should be stored, really gets stored to the database. So i made a simple Project to give you…
Robin
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DeleteOnNull Error

I've got a set of DB objects sitting in an EntitySet on my main object definition. This handles additions and updates fine, but I found the removing items from the list didn't result in the database records being deleted, so I had to create a…
Mad Halfling
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Is my mocking for the EntitySet wrong?

I'm an experienced programmer, but new to LINQ/Moq/Ninject/MVC/MS Test/etc and have run into an issue I haven't been able to figure out. I have built the SportsStore sample from the Pro ASP.NET MVC 2 Framework book (but with .NET 4.5/MVC 4). I got…
Daniel Flöijer
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Linq and ObservableCollection

I have a problem with Linq and ObservableCollections in my WPF application. Context of the problem: I've created a very simple SQL database with two tables: User and BankAccounts. The User Table has an one-to-many relationship with the BankAccounts…
None
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Are custom primitives supported for DFS over spark EntitySets?

From reading the spark guide, it's unclear to me whether it's possible to perform DFS with custom primitives when using a spark ES. I understand that there are limitations in what kind of primitives may be compatible over spark ES, but not whether…
keston
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