disappearance of pushbutton

1 次查看（过去 30 天）
ram
ram 2011-7-27
[EDIT: 20110727 09:56 CDT - reformat - WDR]
hi,
im creating gui penal for that i am creating m.file . While run that program one pushbutton disappeared. I wrote program for that,
try
[filename pathname] = uigetfile( ...
{'*.m;*.fig;*.mat;*.mdl','MATLAB Files (*.m,*.fig,*.mat,*.mdl)';
'*.m', 'M-files (*.m)'; ...
'*.fig','Figures (*.fig)'; ...
'*.mat','MAT-files (*.mat)'; ...
'*.mdl','Models (*.mdl)'; ...
'*.*', 'All Files (*.*)'}, ...
'Pick a file');
set(handles.edit23,'String',[pathname filename]);
guidata(hObject,handles)
catch Er
set(handles.textstatus,'String',['Error:',Er.message]);
end
But i used 4 bushbuttons by same programe, one button only disappeared, what s reason . help me........
  2 个评论
Yoav Livneh
Yoav Livneh 2011-7-27
Please format your code using the "{} Code" button so we can read it.
Jan
Jan 2011-7-27
Which is is disappearing button?! Is there any chance that we could find this information in the posted code?

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回答（1 个）

Jan
Jan 2011-7-27
It is absolutely impossible for us to guess, which line causes the disaapearence of the button. But you can set some breakpoints in your code and step through the program line by line. Then you can locate the line and post it here, if you have further questions.
  2 个评论
ram
ram 2011-7-27
thank u for your reply, but when i run that program that button disappeared then how can i set breakpoint in that?
Jan
Jan 2011-7-27
Are you familiar with the debugger?
Set a breakpoint in the first line of the program. Then run the program line by line until the button disappears. Then the current line causes the troubles.
As far as I can see, the code you've posted does neither create nor delete a button.

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