CODEWITHSUNDEEP
c#-4.0wcf-data-services
Ram
Ram

Reputation: 147

The context is not currently tracking the entity

I am using WCF DataService and the AutoMapper to Map the objects.

The below sample works fine when I get the single entity.

BOND contextBond = this.agent.Context.BONDS.Where(x => x.SECURITY_ID == Security.SECURITY_ID).FirstOrDefault();
Mapper.Map<BondItem, BOND>(this.Bond, contextBond);
this.agent.Context.UpdateObject(contextBond);

The below is the implementation for List Object. I am getting an exception "The context is not currently tracking the entity." at the last line

List<SECURITY_XREF> contextXREF = this.agent.Context.SECURITY_XREF.Where(x => x.SECURITY_ID == Security.SECURITY_ID).ToList();
Mapper.Map<List<SecurityXrefItem>, List<SECURITY_XREF>>(this.Xref, contextXREF);
this.agent.Context.UpdateObject(contextXREF);

Any Idea How can I resolve the issue? In other words how can I pass the List Objects to the UpdateObject Methods.

Thx

Upvotes: 1

Views: 8098

Answers (2)

Serge
Serge

Reputation: 353

foreach (var entity in list)
{
    if(!context.IsAttached(entity)) context.Attach(entity);
    context.UpdateObject(entity);
}
context.SaveChanges()

Upvotes: 1

Bin_MSFT
Bin_MSFT

Reputation: 153

The DataServiceContext.UpdateObject only accept single entity object, you have to call it once on each object in the list. DataServiceContext.SaveChanges will save all changes to server with one call.

foreach (var entity in list)
{
    context.UpdateObject(entity);
}
context.SaveChanges()

Upvotes: 2

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