GUI listbox
2 views (last 30 days)
Show older comments
I try to get selected value(string) from listbox in MATLAB.
Is this code OK?? Here is my code:
mousePos = java.awt.Point(jEventData.getX, jEventData.getY);
clickedIndex = jListbox.locationToIndex(mousePos) + 1;
listValues = get(hListbox,'string');
clickedValue = listValues{clickedIndex};
msgbox(clickedValue);
How to use JAVA in matlab we have in java jList.getSelectedIndex();
2 Comments
Robert Cumming
on 19 Dec 2011
Is there any reason why you are not using the matlab commands set and get?
Accepted Answer
Walter Roberson
on 19 Dec 2011
strings = get(hObject, 'string');
curval = get(hObject, 'value');
if iscell(strings)
curstring = strings{curval};
else
curstring = strings(curval, :); %char array
end
Whether the string parameter is a cell array of strings, or a char array, depends on exactly how the listbox was initialized. If it was initialized to a single string that did not have any '|' characters, or initialized to a char array, then a char array will be the result, but if it was initialized to a cell array of strings, or to a single string that had on or more '|' characters, then a cell array will be the result.
5 Comments
More Answers (1)
Sean de Wolski
on 19 Dec 2011
No reason to access java directly. Use get() with the handle to the listbox to recieve the value property. E.g:
figure; %new fig
h = uicontrol('units','norm','style','listbox',...
'string',{'hello';'world';'eww monday'},'position',[.2 .2 .4 .4]); %a listbox
Select 'world'.
Now at the command line:
get(h,'value')
Addendum:
So:
figure;
names = {'Aldin';'Sean';'John'};
h = uicontrol('units','norm','style','listbox',...
'string',names,'position',[.2 .2 .4 .4]);
h(2) = uicontrol('style','push','callback',@(src,evt)disp(names{get(h(1),'value')}));
Select my name then push the button
6 Comments
See Also
Categories
Find more on Interactive Control and Callbacks in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!