How to lock an enter field for an area of numbers and no letters.

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Bianca Brusis
Bianca Brusis el 11 de Dic. de 2016
Comentada: Star Strider el 12 de Dic. de 2016
Hello all, my question is how i can lock an area of numbers in the enter field which the user can only enter. Like i want that the user can only enter numbers in this field between for example 1-10 and only positivenumbers an no letters. Every ohter input should generate an error. :) Thank you.
  1 comentario
per isakson
per isakson el 11 de Dic. de 2016
With GUIDE that feature doesn't exist. The uicontrol outputs a character string and some code is needed to convert to numerical and test the value.
In R2016a (or b) App Designer the feature exists - I think.

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Respuestas (2)

Isabella Osetinsky-Tzidaki
Isabella Osetinsky-Tzidaki el 11 de Dic. de 2016
if (x>10 || x<1)
error('User can only enter numbers between 1-10')
end
  2 comentarios
Bianca Brusis
Bianca Brusis el 12 de Dic. de 2016
Hi, this works nearby. I want to enter in one field only numbers between 0 and 1 and when i enter 0.1 then everythink works fine when i enter 0,1 the programmcode use it like 1 but when i enter 0,2 the error occures. Any Idea?
Bianca Brusis
Bianca Brusis el 12 de Dic. de 2016
It seems like matlab ignores the , in the enter field.

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Star Strider
Star Strider el 11 de Dic. de 2016
Editada: Star Strider el 12 de Dic. de 2016
EDIT Changed to reflect different decimal separators. Now supports comma (,) and point (.) decimal separators. Checks for alphabetic inputs and for out-of-range numbers.
Try this:
nr_lims = [0 10]; % Number Limits
ltrs = sprintfc('%c', ['A':'Z' 'a':'z']); % Letters Array
respcell = inputdlg(sprintf('Enter a number between %.1f and %.1f ', nr_lims));
resp = respcell{:};
if (any(ismember(resp,ltrs)))
errordlg(sprintf('Input must be a number between %.1f and %.1f ', nr_lims),'Input Error')
return
else
parsenum = regexprep(resp, {'\.|\,'}, '.'); % Replace ‘,’ With ‘.’ In Number
num = str2num(parsenum); % Convert String To Double
if (num >= nr_lims(1)) && (num <= nr_lims(2)) % Check For Out-Of-Range
msgbox(sprintf('Your number is %f', num), 'Success!')
else
errordlg(sprintf('Input must be a number between %.1f and %.1f ', nr_lims),'Input Error')
return
end
end

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