Comments on: Update: Displaying background activity in a Silverlight RIA application

By: david.poll

david.poll — Tue, 05 Jan 2010 21:21:41 +0000

I’m not sure I understand what you’re trying to accomplish with your code. Can you perhaps provide some additional detail?

By: dev

dev — Tue, 05 Jan 2010 20:51:33 +0000

I have a question about SL3 PagedCollectionView and wonder if you could help. I have the following code and the data enter on 1 page and copied over to another page on the same row number. Is this a bug? is there a workaround?

PagedCollectionView pagedCollectionView = new PagedCollectionView(e.Result);
dataGridBike.ItemsSource = pagedCollectionView;
dataForm1.ItemsSource = pagedCollectionView;

// populate employee info
ObservableCollection bikes = new ObservableCollection();
//PagedCollectionView bikeView = pagedCollectionView;
bikes = (ObservableCollection)pagedCollectionView.SourceCollection;

By: Kevin

Kevin — Thu, 03 Sep 2009 21:16:33 +0000

Hi David,

Did you ever find a fix for this issue? I’m running into it too where I have a data form wrapped in an activity control and when the DataContext that the activity control is bound to comes out of the IsLoading state all of the items on the data form are disabled (until you click on one).

By: PYA

PYA — Wed, 19 Aug 2009 16:03:43 +0000

Hi,

First of all, thx for this nice control, it’s way cleaner than using a ProgressBar. I’ve got only one problem, the same as Tom: when I set IsActive to false, my DataForm’s children appear disabled.

Everything re-enables when I click on a DataField. I tried to hack the problem by calling Focus() on the DataForm or on a DataField after setting IsActive to false, but it’s no use.

I thought it was because the Activity control restored the previous state, so I also tried to put a single item in the collection to which my DataForm is bound before setting IsActive to true and loading my data, in order to get an enabled DataForm as a previous sate, but in the end it didn’t help, so I guess the problem is a bit more subtle.

Have you found anything, do you have an idea where the problem could be?

By: david.poll

david.poll — Fri, 31 Jul 2009 22:33:40 +0000

As you mentioned — the solution is below

By: david.poll

david.poll — Fri, 31 Jul 2009 22:33:23 +0000

Yep — I’ll be posting about this soon. The business template has an old version of the Activity control in it — if you use the most recent one from my site, this problem is fixed. We’ll make sure the Business Application Template gets updated for future releases

By: Charles Strahan

Charles Strahan — Fri, 31 Jul 2009 22:30:30 +0000

Excellent! That did the trick.

Thanks,
-Charles

By: Charles Strahan

Charles Strahan — Fri, 31 Jul 2009 22:19:49 +0000

Hi Marcus,

I just posted an identical comment below. I have the same layout as you describe, a Grid with the Activity inside of it, with a DataGrid below that. The DataGrid collapses and shows only the header.

Any luck getting it to expand?

-Charles

By: Charles Strahan

Charles Strahan — Fri, 31 Jul 2009 22:15:35 +0000

Hi Dadid,

This is an excellent control. I have a quick question though regarding the layout of the control’s content.

I currently have a page with a DataGrid inside of a Grid. The RowDefinition’s height is set to “*”, causing the grid to expand and fill the page. If I place the Activity control around the DataGrid, the DataGrid collapses, causing it to be centered on the page.

Do you know if there’s a way I can use Activity and still have it fill the Grid?

Cheers,
-Charles

By: montu82

montu82 — Wed, 22 Jul 2009 20:42:10 +0000

I downloaded and built the project from the activity source code above and replaced the dll file in the Libs folder and my datagrid is still not showing the correct width? Any suggestions? I also used the silverlight business template.