Ring class/Allow Undefined Values property

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VI Server Property Information
Property ID 633E000
Scope Basic Development Environment
Data Name AllowUndefVals
Short Name* AllowUndefVals
Long Name* Allow Undefined Values
* Displayed here in English. Short and Long names appear in the language of the LabVIEW IDE.
Owning Class ID 34
Owning Class Name Ring Class
Data Type Boolean data type


Property Node Allow Undefined Values
Available in Real-Time Operating SystemYes
Available in Run-Time EngineYes
Loads the block diagram into memoryNo
Loads the front panel into memoryYes
Need to authenticate before useNo
Remote access allowedYes
Settable when the VI is runningYes

If TRUE, users can enter numeric values not already associated with any entries in the list of items defined for a ring control. Users must enter undefined numeric values in the digital display of the control. If FALSE, users must select from the list of items defined for the control.

This property is similar to the Allow Undefined Values item on the shortcut menu of a ring control and the Allow undefined values at run time checkbox on the Edit Items page of the Ring Control Properties dialog box.



Version Change(s)
LabVIEW 2018 More info to come.

See Also

External Links