Scripting a DVR

[paul_cardinale]

Is it possible to use scripting to create a control that's a Data Value Reference to a specific data type?

[wiebe@CARYA]

It would have been as easy as replacing an array element (delete element, move new), except delete is not allowed in a DVR.

A way (only way I can think of) is to script a "New Data Value Reference", script a wired data type, script an indicator, then use that (or a constant created from it) to replace the original constant\control... Very inconvenient, as you'll loose descriptions, labels and such attached to the original, so you'll have even more stuff to worry about. 

[wiebe@CARYA · Accepted solution]

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wiebe@CARYA wrote:

It would have been as easy as replacing an array element (delete element, move new), except delete is not allowed in a DVR.

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It is just as easy (even easier) as replacing an array element:

Simply get a reference to the DVR, get a reference to a control, and move it into the DVR.

Guess this works the same for constants:

BTW: The casts are useless.

BTW2: The VI reference constant should be replaced with Static VI Reference with a DVR and a control or constant. Think this is obvious to you, but who know who will be reading this.

[wiebe@CARYA]

Here's how to create a DVR constant from scratch, with a given variant data type:

A control is pretty much the same:\