MATLAB: Error dialog instead of error message in command window

errordlgMATLAB

Hi! Is it possible to get a error dlg instead of error msg i command window? Tanks Johan

Best Answer

Try this:

try
  % Some code that generates an error/exception.
catch ME
  errorMessage = sprintf('Error in function blah_blah_blah().\n\nError Message:\n%s', ME.message);
  % Print to command window.
  fprintf(1, '%s\n', errorMessage);
  % Display pop up message and wait for user to click OK
  uiwait(warndlg(errorMessage));
end

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MATLAB: Warning dialog

Look up isempty(). And you probably want to wrap your warndlg inside a uiwait(). If it's like msgbox(), it will continue with your code, blasting right past that warning message unless you put it inside a uiwait().

MATLAB: How to catch an error

Try it like this:

try
  % No error yet, so try to run algorithm 1
  algorithm1();  
catch ME
  % You get here if algorithm 1 bombs.
  % Create an informative error message.
  errorMessage = sprintf('An error occurred in function blah_fubar().  The error reported by MATLAB is:\n\n%s\nClick OK to run algorithm2()', ME.message);
  % Print error message to command window.
  fprintf('%s', errorMessage);
  % Alert the user via a popup message.
  uiwait(warndlg((errorMessage));
  % Now run algorithm 2, because we had the error occur.
  algorithm2();
end

Best Answer

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