Auto Preallocate Arrays and Strings Property

LabVIEW 2018 Help

Edition Date: March 2018
Part Number: 371361R-01
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Short Name: AutoPreallocate

Requires: VI Scripting

Class: VI Properties

To Use: Create a property.

Get or set the Autopreallocate arrays and strings setting on VIs. This is used by the FPGA module to optimize array and string operations by forcing LabVIEW to preallocate memory at compile time rather than dynamically allocating memory at run time.

This property is similar to the Autopreallocate arrays and strings checkbox on the Execution Page of the VI Properties dialog box.


The following table lists the characteristics of this property.

Data type
Available in Run-Time EngineYes
Available in Real-Time Operating SystemYes
Settable when the VI is runningNo
Loads the front panel into memoryNo
Need to authenticate before useNo
Loads the block diagram into memoryNo
Remote access allowedNo
Must wait until user interface is idleNo
Available with control VIsNo
Available with global VIsNo
Available with strict type definitionsNo
Available with polymorphic VIsNo


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