dialog with checkboxes in gui

Question

ram 2011-8-9

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/13351-dialog-with-checkboxes-in-gui

评论： TEST00 2022-4-13

Hi! I want to make a dialog box with a variable number of checkboxes. From my main GUI, I can create a figure, then I create checkboxes in that figure with "uicontrol...", and one button for "OK". But, how do I associate a callback with that button? and how do I read the status of those checkboxes?

I have also tried to make a new window with GUIDE, but where in the code should I create the checkboxes? and how do I give to the called gui the number of checkboxes?

Or someone please tell me where in the documentation is this covered. Thanks a lot.

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Answer 1

Oleg Komarov 2011-8-9

1
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https://ww2.mathworks.cn/matlabcentral/answers/13351-dialog-with-checkboxes-in-gui#answer_18243

在 MATLAB Online 中打开

In the following example I build a basic gui which has two checkboxes and a pushbutton.

The only action assigned to the push button is to check which checkboxes are selected (save as myGUI and execute myGUI in the command window):

function myGUI
% Create figure
h.f = figure('units','pixels','position',[200,200,150,50],...
             'toolbar','none','menu','none');
% Create yes/no checkboxes
h.c(1) = uicontrol('style','checkbox','units','pixels',...
                'position',[10,30,50,15],'string','yes');
h.c(2) = uicontrol('style','checkbox','units','pixels',...
                'position',[90,30,50,15],'string','no');    
% Create OK pushbutton   
h.p = uicontrol('style','pushbutton','units','pixels',...
                'position',[40,5,70,20],'string','OK',...
                'callback',@p_call);
    % Pushbutton callback
    function p_call(varargin)
        vals = get(h.c,'Value');
        checked = find([vals{:}]);
        if isempty(checked)
            checked = 'none';
        end
        disp(checked)
    end
end

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Ryan Elson 2021-7-14

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Hi @Oleg Komarov, thanks for the code, really useful, I am trying to make a version which outputs the vector of checked buttons and have tried multiple things but have not managed to get it to work and was wondering if you might be able to help (although I appreciate that your original post was 10 years ago!)

My aim is to call the function using a command like the following:

checked = checkBoxGui({'option 1', 'option 2', 'option 3'})

function checked = checkBoxGui(options)
% determine the number of handles
nOptions = numel(options);
boxHeight = nOptions * 30;
boxWidth = 200;
checkBoxHeights = linspace(30, boxHeight-30, nOptions);
checkBoxHeights = flip(checkBoxHeights);
disp('Check box heights')
disp(checkBoxHeights)
% Create figure
h.f = figure('units','pixels','position',[400,400,boxWidth,boxHeight],...
             'toolbar','none','menu','none');
% Create checkboxes 
for op = 1:nOptions
    h.c(op) = uicontrol('style','checkbox','units','pixels',...
                'position',[10,checkBoxHeights(op),200,15],'string',options{op});
end
% Create OK pushbutton   
h.p = uicontrol('style','pushbutton','units','pixels',...
                'position',[40,5,70,20],'string','OK',...
                'callback',@p_call);
    % Pushbutton callback
    function checked = p_call(varargin)
        vals = get(h.c,'Value');
        checked = find([vals{:}]);
        close(h.f)
        if isempty(checked)
            checked = 'none';
        end
        disp(checked)
    end
end