Error in linq "the query contains reference to items in a different datacontext"

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.NET3.5

I am using two data context and retrieving values i get the following error "the query contains reference to items in a different data context"

C#

dbWebEnrollDataContext dt1 = new dbWebEnrollDataContext();
CommissionsV2DataContext cv1 = new CommissionsV2DataContext();

C#

var getdat=from o in dt.Trade
           join c in cv1.tradevalue on o.id equal c.id 
           select new {o.firstvalue,c.secondvalue};

Posted 22-May-11 23:49pm

Steven.Pinto2000

Updated 23-May-11 0:12am

v3

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Comments

Wayne Gaylard 23-May-11 5:51am

Can you post the code so we can see what you are trying to achieve ?

OriginalGriff 23-May-11 6:08am

Without the Linq query, we have to hack into your PC and find it ourselves. And you wouldn't want that, now would you?
Use the "Improve question" widget to add the query to your question.

2 solutions

Solution 3

AFAIK you cannot use 2 separate data contexts within a single query.

dt.Trade

comes from one data context

cv1.tradevalue

comes from another

So you need to create one data context that includes both tables. You should then be able to achieve what you are after.

Posted 23-May-11 0:57am

NuttingCDEF

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Steven.Pinto2000 · Accepted Answer · 2011-05-23T00:42:00

Solution 2

The solution to this problem is

The class which creates the table add the <databasename>.<dbo>.<tablename>
as shown below

C#

[Table(Name = "Storedata.dbo.Demo")]
   public partial class Demo : INotifyPropertyChanging, INotifyPropertyChanged

Posted 23-May-11 0:42am

Steven.Pinto2000