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Coroutine iterator question

Printed From: IdeaBlade
Category: DevForce
Forum Name: DevForce 2010
Forum Discription: For .NET 4.0
URL: http://www.ideablade.com/forum/forum_posts.asp?TID=2342
Printed Date: 12-Oct-2025 at 10:57pm


Topic: Coroutine iterator question
Posted By: BillG
Subject: Coroutine iterator question
Date Posted: 30-Nov-2010 at 9:36am
How do I prevent my code from returning until the object created in it is full instaniated and a valid object?
 

//Coroutine Iterator

public IEnumerable<INotifyCompleted> CreateJobHistory(Member member){

   var localInfoOp = Manager.LocalInfos.ExecuteAsync();

    yield return localInfoOp;

//Get first LocalInfo.NextJobHistRef and increment by 1

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

    int nextRefNo = localInfos.NextJobHistRef;

localInfos.NextJobHistRef = nextRefNo + 1;

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

changedEntities.Add(localInfos);

var saveOp = Manager.SaveChangesAsync(changedEntities);

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

if (args.CompletedSuccessfully)

{

}

else

{

}

};

// ////Create a new JobHistory

JobHistory newJob = new JobHistory

{

SocSecNo = member.SocSecNo,

RefNo = nextRefNo,

Member = member

};

yield return Coroutine.Return(newJob);

}


Replies:
Posted By: DenisK
Date Posted: 01-Dec-2010 at 11:03am
Hi BillG;

I just want to make sure I understand your question. Is the object in question, the newJob? If so, does the CreateJobHistory method not return until it hits the last line, yield return Coroutine.Return(newJob); ?

Posted By: BillG
Date Posted: 01-Dec-2010 at 11:12am
It is returning before it reaches the last line and moving on with next line of code which is the display of the dialog box. So the dialog box is being displayed before the object being passed to it is full created.

Posted By: DenisK
Date Posted: 01-Dec-2010 at 11:16am
I see. I believe that's because the Coroutine.Start itself is an async operation. You might want to hold on displaying the dialog box by putting the display call inside the Coroutine callback after the operation is done.


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