Inserting data to listbox

I am using MATLAB guide,

I have import a data (chemical elements Name) from Excel to a listbox (popupmenu1). Now I have created an editext box (edit10), When the user wish to add a new data(new element), he/she will write the data on the edit text box (edit10) then push (pushbutton4). Then GUI will save the new data on the same list box (popupmenu1)

Answer 1

[Image Analyst]

Try this in the callback function of the pushbutton:

listboxItems = handles.popupmenu1.String; % Get existing list from the popup
listboxItems{end+1} = handles.edit10.String; % Append edit field 10.
% Put new list back in the popup:
handles.popupmenu1.String = listboxItems;

You can sort it if you want with sort().