Broken wire : Refnum Class diagram objet

Hi,
Many times on my applications. On several computers, different project and LabView version (2011 to 2014).
A "Refnum Class diagram objet" needs to be "updated" because its wire is broken.
The attached example shows a valid WaveformChart Refnum class reference which is suddenly and aleatory "broken" and needs to be reset. Otherwise the vi is broken ...
(In the example attached the Refnum "selected" by labview ar Control and "XControlTREE", the problem has no relation with its existence.)
Thank you
Best regards,
Ulysse
Attachments:
2controls.JPG ‏87 KB

Hi Gerd,
I have had problems in the past with passing control references into subVIs. I had these problems because the strict control reference is often incompatible with a non-strict refnum control, or a strict refnum control of the wrong type. For example, if you have a multi-selection listbox, but you try to wire that control reference to a listbox reference associated with a scalar datatype (single-selection), you will get a wiring error.
The easiest solution for these problems is to right-click on the control reference and choose Create > Control. Then, copy this control into your subVI and use it as the subVI input. I think this will solve your class conflict problems.
If this doesn't work right, let me know and we can talk further...attachi
ng a sample LLB that demonstrates the problem would be helpful.
-D
Darren Nattinger, CLA
LabVIEW Artisan and Nugget Penman

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