DevForce Community Forum : Problem saving http://www.ideablade.com/forum/ This is an XML content feed of; DevForce Community Forum : DevForce 2010 : Problem saving Wed, 29 Jul 2026 06:11:53 -700 Mon, 25 Oct 2010 20:54:40 -700 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 9.69 360 www.ideablade.com/forum/RSS_post_feed.asp?TID=2261 DevForce Community Forum http://www.ideablade.com/forum/forum_images/IdeaBlade_logo_tm.png http://www.ideablade.com/forum/ Problem saving : I am loading a child grid with... http://www.ideablade.com/forum/forum_posts.asp?TID=2261&PID=8919#8919 Author: alindzon
Subject: 2261
Posted: 25-Oct-2010 at 8:54pm

I am loading a child grid with data based on changing the current row on the parent grid.  It is working fine until an edit needs to be saved.  The code executed when the page is loaded, or the row is changed is

private void link_load(object sender)

{

var query = Global.mgr.ManufacturerLinks.Where(m => m.ManID == ((Ashlin.Model.Manufacturer)(((Telerik.Windows.Controls.DataControl)(sender)).CurrentItem)).ManID);

var op = query.ExecuteAsync();

op.Completed += (s, args) => linkgrid.ItemsSource = args.Results;

}

If attempting to save changes, the parent works fine but the child has this error.
Coded 4004
ManagedRunTimeError
EntityManagerSaveException: unable to update the EntitySet 'ManufacturerLinks' because it has a DefiningQuery and no...
 
If cancel is executed this code works perfectly

Global.mgr.ManufacturerLinks.EntityManager.RejectChanges();

The parent data is handled by a viewmodel and repository.  The child data is retrieved in the code behind using the code above.
 
It is my workaround since I am still unable to grasp passing arguments to a repository. 
 
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