Generate an Error when an input value contains a comma

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Maarten
Maarten 2014-10-3
评论： Image Analyst 2014-10-3
My question is: is it possible to generate an error pop-up in my UI when an input value contains a comma? For now I got an error pop-up when the input value is not a number by the following code:
if isnan(cv)
set(hObject, 'String', 0);
errordlg('Input must be a number','Error');
end
Currently I am copying this code to every variable I enter (which are a lot of variables). This makes the .m-file a little unclear/confusing to read. Is it also possible to set this code as a general code that applies for the whole programm?

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Image Analyst
Image Analyst 2014-10-3
if ~isempty(strfind(cv, ','))
% cv contains a comma
else
% cv does not contain a comma
end
  2 个评论
Maarten
Maarten 2014-10-3
编辑：Maarten 2014-10-3
Is it also possible to set this code as a general code that applies for the whole program, so that I don't have to copy this code to every variable?
Image Analyst
Image Analyst 2014-10-3
I don't know what you want to do. You could put it into a function and call it every time. If you just want to eliminate commas from the string, you could do it in one line in two ways:
s='adkfsa,lsdjksad,sdlj';
sNoComma = strrep(s, ',', [])
sNoComma = s(s~=',')

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