MATLAB GUI: I want to display an error message if user selects the wrong file type
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Paul
el 23 de Nov. de 2013
Comentada: Image Analyst
el 24 de Nov. de 2013
MATLAB GUI HELP:
I have an option for users to open wav files (using uigetfile). However, this doesn't stop them opening all file types and when they do this it breaks my GUI.
How can I get an error message to occur when they don't open a wav file?
Many thanks. I really appreciate your help.
Best regards
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Respuesta aceptada
Image Analyst
el 23 de Nov. de 2013
Try this fairly robust code:
numberOfTries = 0;
while numberOfTries < 20 % Failsafe
% Get the name of the file that the user wants to use.
startingFolder = pwd; % Whatever you want.
defaultFileName = fullfile(startingFolder, '*.*');
[baseFileName, folder] = uigetfile(defaultFileName, 'Select a file');
if baseFileName == 0
% User clicked the Cancel button.
break;
end
fullFileName = fullfile(folder, baseFileName)
[folder, baseFileName, extension] = fileparts(fullFileName)
if strcmpi(extension, '.wav')
break; % out of while loop
else
message = sprintf('Error: you must pick a wav file, not a "%s" file.', extension);
uiwait(warndlg(message));
end
end
2 comentarios
Image Analyst
el 24 de Nov. de 2013
You could also try to force them to pick a wave file by only showing them:
defaultFileName = fullfile(startingFolder, '*.wav');
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