Guide- coma
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Hi, can you help me please? I have problem with comma ",". I need this:
If I write number into edittext with coma for example 4,3 or 34,4534 or 2342,44 , then I need to write for example into statictext "error". . . else into statictext "ok".
It is possible?
采纳的回答
Daniel Shub
2012-3-20
Generally we like to see that you have put effort into trying to solve your problem. It looks like you have been trying things here: http://www.mathworks.com/matlabcentral/answers/32252-field-text-number and that this is not exactly an overlapping question ...
I start by defining a function iscomma
function iscomma(src, h)
if strfind(get(src, 'string'), ',')
set(h, 'string', 'error');
else
set(h, 'string', 'ok');
end
Then I create two uicontrols and set the callback of the edit box to iscomma
h1 = uicontrol('style', 'edit');
h2 = uicontrol('style', 'text', 'units', 'normalized', 'position', [0.5, 0.5, 0.5, 0.5]);
set(h1, 'Callback', @(src, evt)iscomma(src, h2))
更多回答（1 个）
Dr. Seis
2012-3-20
0 个投票
Yes. Every time the user types something and then hits enter, or tab, or clicks somewhere else in the GUI, etc. the callback function associated with your edittext will execute and you can place a set there to change the static text to "error" or "ok" depending on whether the string you get from the edittext has a comma in it.
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