Comments on: Silverlight Toolkit November 2009: Activity Control –> BusyIndicator (a.k.a. Update 3: Displaying background activity in a Silverlight RIA application)

By: Muaz Zubair

Muaz Zubair — Thu, 25 Feb 2010 12:18:12 +0000

Excellent post!
I get great experience through your blogs.
Sometimes I get unexpected problems when I working with Silverlight. I want to contact some expert programmer, but I didn’t know anyone. Please, can you let me ask these type question directly (through e-mail).
I want to learn from your experience.

By: david.poll

david.poll — Mon, 21 Dec 2009 23:30:37 +0000

You can actually turn this off quite easily — those behaviors are part of the template for the control (managed by the VisualStateManager). Use Blend to create a new template that doesn’t show the background.

If I remember correctly, though, I don’t put the gray background up immediately — all I’m doing is disabling the underlying controls (which turns most of them gray) by disabling their container. Again, this is behavior you can change easily by retemplating.

By: Simon

Simon — Fri, 18 Dec 2009 11:44:34 +0000

Setting IsBusy=true will immediately put up the gray background – even if the actual dialog box hasn’t appeared yet.

This is quite annoying if the component you’re updating is being updated via a timer because it will then flicker on the triggering of the timer.

If the gray background would not appear until the box itself appears then that would be great!

If you’re using busy indicator as a safeguard for a slow internet connection, where normally the call should return instantly this is quite an annoying limitation.

By: david.poll

david.poll — Tue, 08 Dec 2009 08:00:50 +0000

Thanks for reporting this issue! It sounds like a bug in the logic for enabling/disabling when the button is bound to an ICommand. I’ll look into it.

By: AC van Bers

AC van Bers — Tue, 08 Dec 2009 07:33:29 +0000

Super that the control is now integrated in the toolkit!

1 problem I’m experiencing though:
It breaks buttons when the ICommand interface is used in SL4 beta..

I made a post and tracking about it:

http://forums.silverlight.net/forums/p/146909/327160.aspx#327160

http://silverlight.codeplex.com/WorkItem/View.aspx?WorkItemId=4754

By: david.poll

david.poll — Sun, 29 Nov 2009 16:25:31 +0000

Hi folks! I’ve been on vacation for the last week (immediately following PDC). I’ll try to address your questions/comments in the next few days. Thanks for all the feedback!

By: Nk54

Nk54 — Wed, 25 Nov 2009 16:09:05 +0000

Lol this morning all my activity control makes page unavailable on blend :/

so i google “davidpoll” and surprise ! your activityControll become busyIndicator in the new toolkit

Ctrl+H replace “activityControll” to “BusyIndicator” all work finally fine ^^

thx ! nice job (also to Jeff and David)

By: Maca

Maca — Wed, 25 Nov 2009 03:04:58 +0000

I just installed the toolkit and tried to use in an existing solution. I was trying to drag the BusyIndicator from the toolbox into the xaml and got the following error:

The operation could not be completed.

I got it working by removing the reference to System.Windows.Controls.Toolkit and readding it.

Looking forward to use it now.

By: Michel Miranda

Michel Miranda — Sun, 22 Nov 2009 07:43:37 +0000

Great control! I have two questions.
1. I want to show the busy indicator but keep the content enabled. Is it possible?
2. I want to show a custom animation. How to get rid of the gray background rectangle?
Thanks in advance.

By: Silverlight Toolkit November 2009: Activity Control … Silverlight Blog

Silverlight Toolkit November 2009: Activity Control … Silverlight Blog — Fri, 20 Nov 2009 15:57:48 +0000

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