Select all the data in listbox using single click of pushbutton

I have a GUI with 3 pushbuttons(Load, Select All & Extract)and listboxDATA. I am able to import data in the listbox using load but how do I set callback for select_all to select all the data in the listboxDATA. I can select all the data individually in listbox but that could be more than 200 lines.

Answer 1

[Chris Perkins]

Hi Ghanshyam,

In your 'Select All' pushbutton callback, you can add the following code to select all elements currently displayed in your listbox:

sizeOfListBox = numel(get(handles.listbox1, 'String'));
set(handles.listbox1,'value',1:sizeOfListBox);

You can replace 'listbox1' with the Tag of your custom listbox.

Note: You will also need to adjust the 'Max' and 'Min' properties of the Listbox so that multiple item selection is allowed. 'Max' must be at least 2 more than 'Min'.

[Ghenji]

Hey Chris. I was missing this function 'numel'. Thank you for your help.