Retrieving and Updating Next Invoice #

New problem arose I moved the coroutine caller to a repository. From the ViewModel I pass the coroutine method the ssn of the current member, but I get a compile error on the line in red, the Coroutine.Start call. How can I pass a parameter to the coroutine iterator method? 

It never reaches the breakpoint.

same thing with another table that at least 50 rows in it. It's almost like it hasn't had time to retrieve the rows by the time it reaches the yield return statement. Does it make a difference that I am using the development server and am not using the BOS in my development machine?

private void CreateNewJobHistoryCoRoutine()

{

var coop = Coroutine.Start(CreateJobHistory);

coop.Completed += (sender, args) =>

{

if (args.CompletedSuccessfully)

{

newJob = coop.Result as JobHistory;

// Order newOrder = coop.Result as Order;

//// Output += newOrder.ShipName + Environment.NewLine;

}

else

{

//Error handler here

// Output += "New Order creation failed: " + Environment.NewLine;

}

};

}

　

//Coroutine Iterator

private IEnumerable<INotifyCompleted> CreateJobHistory()

{

var localInfoOp = Mgr.LocalInfos.ExecuteAsync() //fails to yield any rows, table has 1 row in it. 

　

//Get first LocalInfo.NextJobHistRef and increment by 1

LocalInfo localInfos = localInfoOp.Results.First<LocalInfo>();

int nextRefNo = localInfos.NextJobHistRef;

localInfos.NextJobHistRef = nextRefNo + 1;

　

//Create a new JobHistory

JobHistory newJob = JobHistory.Create(Mgr, CurrentMember.SocSecNo, nextRefNo);

　

//Create changedEntities and add first LocalInfo to it.

List<Entity> changedEntities = new List<Entity>();

changedEntities.Add(localInfos);

　

//Save Async

var saveOp = Mgr.SaveChangesAsync(changedEntities);

saveOp.Completed += (sender, args) =>

{

if (args.CompletedSuccessfully)

{

// var savedOrder = args.Entities[0] as Order;

// Output += "Save is successful: " + savedOrder.ShipName + Environment.NewLine;

}

else

{

//Output += "Save failed" + Environment.NewLine;

}

};

yield return Coroutine.Return(newJob);

}

I fixed up the new code that you gave me and it compiles fine but the problem is that when it executes the executeAsynce method and I step through the code it fails to fetch a row from the LocalInfos table before it hits the first yield return and the it exits the Coroutine iterator method and returns back to the calling coroutine method.

Where did you get this code snippet? Is it available with the download. If there a place to find all code snippets?

I haven't really looked at the other solutions, but couldn't you do something like this:

Create Invoice object
Pass new invoice object to a function that makes the async retrieval code, updates the object, and then calls the update code?

This way you create and return your invoice object immediately, and the invoice Id is assigned when the async call returns

I put in the new code but I can't compile it because of the following errors: