GUI listbox

11 views (last 30 days)
Aldin
Aldin on 19 Dec 2011
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
Aldin
Aldin on 19 Dec 2011
Java is easier than MATLAB in JAVA we have method:
jList.getSelectedIndex(); jList.getSelectedValeu();
but in MATLAB we have not

Sign in to comment.

Accepted Answer

Walter Roberson
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
Walter Roberson
Walter Roberson on 19 Dec 2011
Yes, see my response to your newer question on this topic.

Sign in to comment.

More Answers (1)

Sean de Wolski
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
Aldin
Aldin on 19 Dec 2011
I'm beginner in MATLAB

Sign in to comment.

Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!