Empty text box value when reading about the LV2012 development system but no Production

Development platform: 32-bit Windows 7, LV2012 Professional Development System.

Production of platforms: Windows XP.

We have a test application, we have developed (in haste, I might add) who has a curious problem.  As part of the installation for each test, read us a text box with a serial number entry and record them in the log files.  Series enough.

This works very well on production machines - no apparent problem.

However, on the development computer, when I try to read the text box, all I get is an empty string.  I tried to read directly from the Terminal, as well as using a property value box.  Each time, there is nothing in the string.  This is even though I'm looking at the text box and there are visible data in it.

Clear the text box repeatedly, I'm looking to see if any of those that occur at the wrong time.  And, indeed, I am looking a probe value of ' ' from the property node Value with the string "1234" visible in the text box while NONE of the compensation functions have been affected.

The test application uses a pretty standard user interface event loop model, with an event loop manages the user input and the other event loop manages the business logic.

Anyone have any idea what can cause this, or a better search string to find clues?

Thank you

Geoff

As promised, I did go to the bottom of it.

Simply enable "update of value while typing" gave me the result I expected.

To explain: I had a key event down to the first text box that has been copied to this text box.  Whenever a key was hit in this text box, the value would be read and updated.  I did not have all the events for the new text box.  It has not been updated to what some other events.  At that time, it was apparently too late (most of the time on the development computer) and occasionally on the Production machine.

Activation of the "Update value while typing" indicator means that the value field would properly up-to-date each time he has been seen/accessible.

Life is a learning experience...

Tags: NI Software

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