Gauge not updating when mouse is over background

Gauge for WPF Forum

Posted 4 years ago by John Woodard
Version: 20.1.1

We use an older version of the ActiPro Gauge display in our product that displays real-time data.  We have a customer complaint that when you mouse over a gauge control, but only over the background, it stops updating.  We have successfully reproduced this issue, and updating to the trial edition of the latest version did not fix it.

It only happens when you mouse over the background.  If you move the cursor to the needle or the center hub for the needle, or any text on the gauge updates recommence.  If you leave the gauge, updates recommence.  But while the mouse is over the background, the display does not update.

It is important to note that this does not always happen.  It may be related to the application being heavily loaded.  It also seems to happen more with dark backgrounds, especially the dark background with the circular gradient, although that could be coincidence.

[Modified 4 years ago]

Comments (1)

Posted 4 years ago by Actipro Software Support - Cleveland, OH, USA

Hi John,

I'm sorry you're having trouble.  We haven't heard of this issue happening.  Can you give us some XAML to paste into one of our samples so that we can see this scenario and debug the issue? 

Or if it is something related to heavy processing as you said, perhaps try to reproduce it in a new simple sample project and send that over to our support address.  Be sure to exclude the bin/obj folders so it doesn't get spam blocked. 

Keep in mind that the WPF Dispatcher prioritizes the Input phase over the Render phase.  If something in your scenario is doing heavy input processing (not common though), that could certainly cause rendering to slow down.  Perhaps doing some performance profiing of your app would help identify if that might be the case.

Thank you!

Actipro Software Support

The latest build of this product (v24.1.2) was released 2 months ago, which was after the last post in this thread.

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