Matlab GUI - Error check and message accordingly

Question

Vineet Guru 2013-6-4

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/77959-matlab-gui-error-check-and-message-accordingly

I have seen several videos on GUIs showing how to do this but when I attempted it, the error display box (tag = msg) does not display an error if anything other than numeric values are inserted into the boxes.

I'll be delighted if someone can help me with this.

I have uploaded the code here from where it can be downloaded.

http://www.recmgt.hostzi.com/matlab

The files you will need are the m file, the fig file and the .xlsx file

Thank You

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Answer 1

Image Analyst 2013-6-4

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https://ww2.mathworks.cn/matlabcentral/answers/77959-matlab-gui-error-check-and-message-accordingly#answer_87698

在 MATLAB Online 中打开

You could use a try/catch like this:

try
  % Some code that might generate an error.
catch ME
  errorMessage = sprintf('Error in function blah_blah_blah().\n\nError Message:\n%s', ME.message);
  fprintf(1, '%s\n', errorMessage);
  uiwait(warndlg(errorMessage));
end