Error loading data into popup menu GUI

Hello,

I'm creating a GUI in which I import data from an Excel and I want the name of the columns to appear as options in a pop-up menu. The problem is that it doesn't happen and an error appear. What can I do? I think the error is in the last line but I do not know how to solve it.

Thank you very much!!! Pedro

This is my code:

   function datagraphV1

   f=figure('Visible','off','Position',[100,100,450,285]);

   hload=uicontrol('Style', 'pushbutton',...
    'String','Load .xlsx','Position',[315,220,70,25],...
    'Callback',{@loadbutton_Callback});

   hpopupX=uicontrol('Style','popupmenu',...
    'String',{'popupmenuX'},...
    'Position',[300,75,100,25],...
    'Callback',{@popupX_Callback});

   function loadbutton_Callback(hObject,eventdata,handles) %Function callback for loading the Excel and changing the 
  pop-up menu X.

   handles.filename=uigetfile('*.xlsx');

   guidata(hObject,handles);

   [Comp, Prod, OthInfo, colnames,numcolum]=extractdataexcelV2(handles.filename);

   hpopupX.String=colnames;

Answer 1

[Niels]

Hi Pedro,

[Comp, Prod, OthInfo, colnames,numcolum]=extractdataexcelV2(handles.filename);

extractdataexcelV2

I have never seen this command before. If you want to extract data from an excel file you can use xlsread

like:

[number, text] = xlsread(filename,range); % xlsread('testfile.xlsx','A6:F32');

If text is a vector, your last line should be fine

in my example:

hpopupX.String=text;

[Pedro Galvez]

Hi Niels, it is a function I have created in order to take directy the information I need.

Thanks!