MATLAB: How to create two list dialogs (listdlg) in one figure

listdlgmatlab gui

Hi all! I am looking for a solution to create a figure, in which two different listboxes are presented, and the user can select one or multiple lines in each listbox. I know that I could program this more or less from scratch, using GUIDE. However, I was wondering whether there would be a simpler solution, using the the function 'listdlg'? Because listdlg actually does everything I need, beside that it just allows one but not multiple listboxes.

An example for a listbox would be the following:

listdlg('PromptString','List options A:', 'ListString', {'option 1A', 'option 2A', 'option 3A'})

So I would need a figure that looks exactly like this, but just with another listbox next to it:

listdlg('PromptString','List options B:', 'ListString', {'option 1B', 'option 2B', 'option 3B'})

So that the user can select 1 or multiple lines from listbox A and 1 or multiple lines from listbox B.

Best, Matthias

Best Answer

No, listdlg() creates a temporary figure with windowstyle 'modal' (which disallows operating on other figures)

I also see that in current versions, listdlg() stores some data in appdata ListDialogAppData__ against the root graphics object; if there were multiple list dialogs they would be conflicting on that.

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MATLAB: Inputdlg rename cancel button

Hi,

Ok and Cancel buttons are hardcoded in inputdlg. You can copy the code of inputdlg.m and make changes in the CancelHandle String as shown in below code snippet.

CancelHandle=uicontrol(InputFig     ,              ...
  BtnInfo      , ...
  'Position'   ,[ FigWidth-BtnWidth-DefOffset DefOffset BtnWidth BtnHeight ]           , ...
  'KeyPressFcn',@doControlKeyPress            , ...
  'String'     ,'More Options', ... %getString(message('MATLAB:uistring:popupdialogs:Cancel'))    , ...
  'Callback'   ,@doCallback , ...
  'Tag'        ,'Cancel'    , ...
  'UserData'   ,'Cancel'       ...
  );

MATLAB: Do I receive a warning when I repopulate the “listbox” uicontrol in MATLAB

The ability to automatically reset the "Value" property to "1" when repopulating a listbox is not available in MATLAB.

To work around this issue, set the active item in the list box to the first item before repopulating the listbox:

set(hListBox,'Value',1);

The following code provides an example where this workaround is used:

function [] = ChangeList()
% Example to demonstrate changing the items in a list
% Create two different lenght lists
list1 = {'Option 1', 'Option 2'};
list2 = {'Only Option'};
% Create a list box with the first list, set to second time.
hListBox = uicontrol('Style','listbox',...
                       'String',list1,...
                       'Position',[20 20 100 200],...
                       'Value',2);
% Create a button to set to list 1
hList1Button = uicontrol('Style','pushbutton',...
                           'String','List 1',...
                           'Position',[130,100,100,30],...
                           'Callback',@(eventObject,eventData)ChangeList(eventObject,eventData,hListBox,list1),...
                           'Tag','btn1');
% Create a button to set to list 2
hList2Button = uicontrol('Style','pushbutton',...
                           'String','List 2',...
                           'Position',[130,30,100,30],...
                           'Callback',@(eventObject,eventData)ChangeList(eventObject,eventData,hListBox,list2),...
                           'Tag','btn1');
end
% Create the callback
function [] = ChangeList(hObject,eventData,hListBox,list)
      set(hListBox,'Value',1); % Add this line so that the list can be changed
      set(hListBox,'String',list);
end

Best Answer

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MATLAB: Inputdlg rename cancel button

MATLAB: Do I receive a warning when I repopulate the “listbox” uicontrol in MATLAB

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