02-07-2012 04:55 AM
Problem with "Link to" of a property node:
When link is changed to a control which has a user created type definition,
this property node will be removed when you disconnect the control
from its type definition.
Step by step to reproduce the problem:
1) Create a new VI.
2) Place a Numeric Control on the Front Panel: "Numeric"
3) Use "Make Type Definition"
4) "Open Type Definition."
5) Save the type definition ("Type Def Numeric.ctl")
6) Place a second Numeric Control on the Front Panel: "Numerc 2" (without type definition)
7) Create a property node for "Numeric 2" - Value (Signaling)
😎 Use "Link to" and change the link of property node from "Numeric 2" to "Numeric"
9) Use "Find" from the terminal of "Numeric"
10) I observe the 1st bug: the property node is not listed! (VI stored in this state)
11) Disconnect "Numeric" from its type definition
12) I observe the 2nd bug: the property node has been removed!
LabVIEW 2011 - Version 11.0f2 (32-bit)
Windows 7 Professional - Service Pack 1
02-07-2012 12:29 PM
Confirmed on Windows XP, LV 2011 (no patch) 32 bits.
02-08-2012 02:42 AM
There seems to be no workaround for this issue. A CAR has been created and R&D will solve the issue.
Cheers,
Philip
07-11-2012 05:07 PM
Two CARs were filed related to this thread:
CAR #318066 -- Implicitly typed property node Value does not retain the typedefness of the original control
CAR #318065 -- "Find" popup problems on implicitly linked property/invoke nodes when original control is a typedef
Relevant discussion was also held at this Idea Exchange location: Typedef "Value" Property Node issues to fix, please!