Help with the keyboard

Question

Hi! My case is very simple, and it is so simple that i didn't find any question equal to mine.
 How I do the backspace?

Answer 1

I don't quite understand what you are trying to accomplish. You said you're "doing a keyboard". What exactly does that mean? Are you trying to have a front panel that looks like a keyboard? Your code seems to imply that you want to have some sort of visual indication of something like keys being pressed, but the keys come from some array, or some other source. Please clarify this. What is the purpose of this? Is this related to your other question?
Comments regarding the code:
If you have an array as the source of data then you should use auto-indexing on the for-loop rather than wiring a "magic number" to the N terminal and using Index Array. Please read the LabVIEW Help on auto-indexing loops. 
Writing a backspace character to a string indicator isn't the same as actually pressing the backspace key on the keyboard. You're actually writing a value to the string, not sending keystrokes, which is something different. 
I am assuming the comparisons at the bottom were just for debugging. However, it should be pointed out that the sequence frame is unnecessary - think dataflow. Also, you do not have the outputs of the comparisons wired to the Boolean indicators. 
To learn more about LabVIEW it is recommended that you go through the tutorial(s) and look over the material in the NI Developer Zone's Learning Center which provides links to other materials and other tutorials. You can also take the online courses for free.