Front Panel freezes completely

[jay0909]

Hi,

       The attachement contains the image of the front panel. The picture shows child vis loaded using subpanel . In this VI i have tab with 5 pages, the pages are controlled using Runt time menu. The picture shown is from the first page of the tab. Now i have a situation we similar child vis are loaded in all pages, it works until fine few minutes, later the front panel freezes compeletly. How to solve this problem? 

[P@Anand]

Freezes mean what? Are you not able to click anything but the values are changing in the front panel or there is no change in the front panel itself? Can you show us the BD or maybe attach the VI, which will be helpfull to debugg the issue?

[jay0909]

Hi

           The values on vis run slowly..... also if i try to drag the child vi it lags a lot......... I'm using a single subpanel for all child vis to load, is this the problem?

[P@Anand]

I would like to clarify, what do you mean a child VI here? How are you loading eveyrthing in a single subpanel? Do you have n number of sub Vis and calling them in the sub panel? Also please explain what do you mean by draging a child VI?

[jay0909]

Hi,

     yep, i Meant no of subvi's calling a single subpanel. moving the subvi inside the parent vi. 

[P@Anand]

Please attach you code for a better understanding (In 2013 or earlier version please).

[jay0909]

HI, 

         Usually what could be the problem of freezing of front panel? General ideas.

[jay0909]

HI, 

         Usually what could be the problem of freezing of front panel? General ideas.

[P@Anand]

When you have event structure executing a code and when you try to fire another event the FP gets locked and looks like its frozen.

[GerdW]

Hi jay,

usual problems are

- starving the CPU by heavy load (especially in the UI thread)

- an event structure set to block UI while handling event(s)