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Multiple choices in a listbox

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Nuno Fernandes
Nuno Fernandes 2011-5-31
I want to select multiple elements of a listbox and show them in another one. How can i do this in a simple way?
thanks

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采纳的回答

Matt Fig
Matt Fig 2011-5-31
If you set 'min' to 0 and 'max' to 10, you will be able to select multiple strings. Once you have that you can get the choices by:
C = get(U,{'string','value'})
C = C{1}(C{2})
Then set the 'string' property of the other listbox to C.
  2 个评论
Nuno Fernandes
Nuno Fernandes 2011-5-31
I already knew that part of 'set '...min' to 0 and 'max' to 10...'. Now i can't save the selected elements to a matrix and then show them on other listbox...
Matt Fig
Matt Fig 2011-6-1
Interesting, it seems to work for me...
U = uicontrol('style','listbox',...
'units','pix',...
'string',{'Poodle';'stubb';'false';'together';'spanish'},...
'pos',[10 10 50 100],...
'min',0,'max',10,...
'callback',['C = get(gcbo,{''string'',''value''});',...
'set(U(2),''string'',C{1}(C{2}))'])
U(2) = uicontrol('style','listbox',...
'units','pix',...
'string','',...
'pos',[80 10 50 100],'min',0,'max',10)

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更多回答（1 个）

Walter Roberson
Walter Roberson 2011-5-31
Set the 'Max' property of the listbox to be at least 2 greater than the 'Min' property. You will then be able to select multiple items in the usual ways (e.g., click-and-drag or control-click or as appropriate for your OS.) The listbox Value property will return an array of the indices of all the currently selected entries.
Note: the Callback will be called every time the selection changes, so if you are adding entries one by one using control or alt, then multiple callbacks will be generated.
  3 个评论
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Matt Fig
Matt Fig 2011-6-1
See the example I show above...
P
P 2012-9-5
Have you tried using the 'handles' structure to save the data in the callback of the first listbox and then displaying using a callback for the second listbox?

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