I'm using listdlg to give the user a dropdown list to make a selection of. While debugging, I tried exiting the listdlg without making a selection, and I got an error.
I tried to validate the data underneath by using a while loop. Normally when a user exits a menu without making a selection, the variable is assigned to 0. My error is occurring almost 90 lines later, so as long as the data is validated, there shouldn't be any errors.
choice = listdlg("PromptString",{"Select a plant to learn more about."},"SelectionMode","single","ListString",CP);
while choice == 0 % forces user to make selection
choice = listdlg("PromptString",{"Select a plant to learn more about."},"SelectionMode","single","ListString",CP);
end
Since my while loop is just bypassed if the user exits without making a selection, that means the variable choice is not 0. If it's not assigned to 0 when the user exits without making a selection, what is the value assigned?
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