Codejock Developer Community : commandbar_update

commandbar_update : Thanks for pointing that out gshawn....

Fri, 15 Jun 2007 13:48:07 +0000

Author: apuhjee
Subject: 7254
Posted: 15 June 2007 at 1:48pm

Thanks for pointing that out gshawn. It does help.

commandbar_update : The benefit is that you can have...

Fri, 15 Jun 2007 04:31:14 +0000

Author: gshawn
Subject: 7254
Posted: 15 June 2007 at 4:31am

The benefit is that you can have all of your commandbar status maintenance code in a single method (rather than needing to add code to every single event that an object could fire when its state is modified).

For example, there is no SelChange event for the textbox control. If you have a "Bold Text" button that you only want to enable when some text is selected, you would need to add code to handle at least the keyboard and mouse events.

With what you call the "polling model" however, you only need to add a single line of code to the CommandBar_Update event:

Item.Enabled = (txtBox.SelLength > 0)

Hope this helps!

commandbar_update : Look into the UpdatePeriod property....

Fri, 15 Jun 2007 04:02:20 +0000

Author: gshawn
Subject: 7254
Posted: 15 June 2007 at 4:02am

Look into the UpdatePeriod property.

commandbar_update : I would really appreciate an answer...

Thu, 14 Jun 2007 13:47:21 +0000

Author: apuhjee
Subject: 7254
Posted: 14 June 2007 at 1:47pm

I would really appreciate an answer to this question.

Maybe I'm missing something here, but it seems like this polling model is a step backwards from the modern event model.

What are the benefits?

Thanks ~ jp

commandbar_update : Is there anyway around using commandbar_update?...

Tue, 29 May 2007 11:25:32 +0000

Author: LittleJK
Subject: 7254
Posted: 29 May 2007 at 11:25am

Is there anyway around using commandbar_update? We are finding that the update event gets fired all the time when the form is opened. we are wondering if there is a way to by pass commandbar_update or to slow it down/less calls.

Thanks