Convering numeric into string with zero left

[Carlos Romero]

I have a numeric control when you write serial number.

Serial number's lenght is 9 of max. If you write a number of lenght 6 the system add zero to left until lenght 9.

For example,
You write: 12345
The system show: 000012345

I wish, you cannot write in numeric control a number greatest to 9 of lenght.

I wish too, when you press the ok button in a text box you read the number with zero left because now I dont know make it.

Thanks.

[chilly_charly]

you can padd your serial number with zeros using a "Format value" node (found in the string/string top number conversion subpalette). Use "%09d" as format string.
You can filter numbers greater than 999999999, with a simple comparison node.
If you want/need to use a single text field, then you will need to use a local variable.
See the attached example vi.