Cant convert input textbox to a number

I have to input textbox - one for minimum number (txtMin)
& one for maximum number (txtMax)
I want the user to fillin the two of them and than I check if
the txtMin.text is greater then the txtMax.text if so i trace that
the min number must be less than the max number
very simple, right - but it's not working!
here is my code

it has indeed white space (a line break) i dont know where
does it come from. it happens when i delete the content of the
input text field at design time, and i fill it with numbers at run
time (i dont press the enter key) and also if i fillin the number
at design time. (anyway i use restrict to prevent the user fillin
characters but 0-9).
i used the function pareInt as a workaround.
anyway (like always) you were right!

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Coop wrote:
> I am reading hexadecimal format from the output of the VISA read block
> and I want to convert it to the decimal preferably exponential format.
> Example of what I read is 76 00 02 (in dec: 7.600 E+2).
> I know there is "type cast" block that converts nicelly but I am not
> sure what to specify for a type input.
> Can you show me how to apply this type cast block for in my VI so that
> it converts hex string (76 00 02) into exponential string/number
> (7.600 E+2)?
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Cant convert input textbox to a number

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