correctly erasing items from a listbox
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I am trying to erase some listings from a listBox. however, when I push the appropriate button I receive the following warning:
Warning: multi-selection listbox control requires that Value be an integer within String range
and the listBox control doesn't get rendered. Any ideas for a fix? here is the code of the button's callback :
function btnRemovePNU_FromUse_Callback(hObject, eventdata, handles)
% hObject handle to btnRemovePNU_FromUse (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
PNUList = handles.liPNU_toUse;
indexedPNU = get(PNUList,'value');
PNUnames = get(PNUList,'String');
PNUnames(indexedPNU) = [];
set(PNUList,'String',PNUnames);
采纳的回答
Teja Muppirala
2011-5-21
After you delete the items from the 'String' property, you need to update the 'Value' property as well.
For example, if you initially had 3 items, and you selected the 3rd one, then 'value' is 3. Then you delete it, and now you have two items left, but the value is still = 3. This is the problem.
Update the 'value' and you'll be fine:
set(PNUList,'String',PNUnames, 'Value', 1);
3 个评论
Teja Muppirala
2011-5-21
This is ok too (if you are allowing multiple or empty selections)
set(PNUList,'String',PNUnames, 'Value', []);
roi
2011-5-23
Thomas Côté
2019-6-17
编辑：Thomas Côté
2019-6-17
10000 years later, thank you.
It was helpful for my own code.
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