Short Name: DefVal (Undo)
Requires: VI Scripting
Class: Control Properties
To Use: Create a property.
Default value of the control (LabVIEW variant).
This property behaves identically to writing the Default Value property except that LabVIEW records changes to this property if a transaction starts on the VI.
The following table lists the characteristics of this property.
| Data type | ![]()  | 
| Permissions | Write Only | 
| Available in Run-Time Engine | No | 
| Available in Real-Time Operating System | No | 
| Settable when the VI is running | No | 
| Loads the front panel into memory | No | 
| Need to authenticate before use | No | 
| Loads the block diagram into memory | No | 
| Remote access allowed | Yes |