Get multiples item from listbox

Dear all,

I have a listbox in a GUI from which I want to retrieve the value of different items. I have set up the "Max" value to 2 (and the "Min" to 0). With this I can select 2 items in my list. But, when I want to get the value of the two selected items with:

contents = cellstr(get(hObject,'String'))
selected_file=contents{get(hObject,'Value')}

It is only giving me the value of the first item in the list as a string.

How I can get an array of the two selected items then? I'm sure it is very simple but I can't find the solution.

Thanks for your help.

Answer 1

[Adam]

selected_file=contents( get(hObject,'Value') )

should work. Or just

selected_file = hObject.String( hObject.Value );

in one line (R2014b or later - the equivalent get style works for earlier versions)

Answer 2

[Nicolas Giret]

Thanks Adam,

It is indeed giving the "Value" ([1 2] if I select the two first items).

But actually, I wasn't clear enough. Instead of the "Value", I rather wanted to get the "String" of these 2 items which I get with:

contents = (get(hObject,'Value'))
str_contents = cellstr(get(hObject,'String'))
selected_items=str_contents(contents)

Perhaps it is not really elegant, but it's working !

[Adam]

Well in your original question you extracted the string into contents so I used what you had written there and didn't bother to repeat it.

Answer 3

[Jan]

Older Matlab versions contained the function popupstr for this job. Unfortunately this small but useful piece of code has been removed. Here is a replacement, which handles single and multi-selction listboxes and popup menus, strings, CHAR matrices and cell strings:

http://www.mathworks.com/matlabcentral/fileexchange/46651-getselection

selected_items = GetSelection(hObject)

[Nicolas Giret]

Thanks Jan, good to know.