MATLAB: How to restore deleted items from listbox

listbox

i did the coding in the following link to create a listbox and display names of images from a particular folder…. on selecting the name from the listbox that image gets displayed in the axes…..

http://www.mathworks.ch/matlabcentral/answers/27183-how-to-insert-elements-in-listbox

now i added two buttons, one named "DELETE" and the other named "RESTORE"…..

in the DELETE button when i select a particular item from listbox that name gets deleted from the listbox and the corresponding image gets deleted from the folder….

on click of the RESTORE button all the delete images should get displayed in a figure file and added back to the folder…..

please can u help me do this option…..

i tried, its working when only one image is deleted….. if i delete more than one item, only the last deleted item is getting restored….. can u help me sort it out…..

Best Answer

Restore does nothing whatsoever to put anything in the listbox. You need to call some function like LoadListBox(handles) that you create which will use the filename pattern to create a cell array of strings and then use set() to send that cell array to your listbox control.

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MATLAB: How to restore deleted items from listbox

Is the question about how to change the listbox? If so, then just set() its String property to hold the revised information. You would need to have saved the information somewhere in order to restore it.

Is the question really about how to restore deleted images? If so then I talked about that in your existing thread.

MATLAB: How to insert elements in listbox

Hi, Usama.

Maybe you are seeking for something like this?

In the openingfcn

function untitled_OpeningFcn(hObject, eventdata, handles, varargin)
handles.output = hObject;
files = dir(fullfile(pwd,'Folder01','*.png'));
for x = 1 : length(files)
    handles.images{x} = imread(fullfile(pwd,'Folder01',files(x).name));
end
set(handles.listbox1,'string',{files.name});
guidata(hObject, handles);

In the listbox1 callback

function listbox1_Callback(hObject, eventdata, handles)
handles.output = hObject;
index = get(handles.listbox1,'value');
imshow(handles.images{index});
guidata(hObject, handles);

You can also change the image extention by replacing png with another extention

Eq: files = dir(fullfile(pwd,'Folder01','*.jpg'));

And if it is DICOM files

files = dir(fullfile(pwd,'Folder01','*.dcm'));
for x = 1 : length(files)
    handles.images{x} = dicomread(fullfile(pwd,'Folder01',files(x).name));
end

I hope this helps.

Best Answer

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MATLAB: How to restore deleted items from listbox

MATLAB: How to insert elements in listbox

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