App designer - How To Re-Run an app

Hey guys,

i have designed an app with app designer.

In this app i habe an "run" button which runs a function within the app.

This is the run buttons callbackfcn:

            if(app.NumberoffilesEditField.Value < 1)
                f = msgbox('You forgot to type the number of files and the Prefix for the filename', 'Error','error');
            elseif(strcmp(app.PrefixforfilenameEditField.Value,'Measurement') == 1 || isempty(app.PrefixforfilenameEditField.Value))
                DateNow = datestr(now);
                app.pNameOfFiles = matlab.lang.makeValidName(DateNow,'Prefix','Measurement_');
                app.PrefixforfilenameEditField.Value = app.pNameOfFiles;
                
                app.Lamp.Color = 'yellow';
                app.pNoFiles = app.NumberoffilesEditField.Value;
                app.pNameOfFiles = app.PrefixforfilenameEditField.Value;
                app.pNameOfFiles = [app.pNameOfFiles, '_'];
                func(app)
                app.Lamp.Color = 'green';
                pause(5)
                app.Lamp.Color = 'red';
            end
            
            close all;

Now if I want to re-run the app... nothing happens?

What could be the reason for that?

Answer 1

[Ajay Kumar]

close all deletes all the variables in the workspace, making the previously stored attributes inaccessible.

Try commenting out last line and run it.