Benchtop Measurement and Test
Distributed Measurement and Control
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Provides support for NI data acquisition and signal conditioning devices.
Provides support for Ethernet, GPIB, serial, USB, and other types of instruments.
Provides support for NI GPIB controllers and NI embedded controllers with GPIB ports.
Is there a simple way to determine if there are any characters populated into a string control? For example, I would like to produce a boolean true if there are characters written in the string control, and false if the control is empty?
Go to Solution.
Try negating the output of "Empty String Path Filename?" on the Comparison pallet.
Also remember that string controls have a few more additional useful options such as "limit to single line" and "update value while typing".
By default, characters in a string control are not read by the code until the entry is finalized (clicking outside, hitting <enter> if set to "limit to single line", etc.).
If you set it to "update value while typing", you'll get a more instant response if programmed correctly.
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