assign string to handles structure

Is there a reason why the following is throwing an error ( Undefined function or variable 'hobject'.

Error in Montage>pushbutton1_Callback (line 149) handles.LString=legString;)

obj=get(handles.uipanelColour,'SelectedObject');
        strC=get(obj,'Tag')           

         ImageFiles = dir([folder '\*red.tif*']);
         switch strC 
       case 'rbRed'
           ImageFiles = dir([folder '\*red.tif*']);
           legString='Red';
       case 'rbGreen'
           ImageFiles = dir([folder '\*green.tif*']);
           legString='Green';
         end

        %Assign legend String to handles structure so get later
        handles.LString=legString;
        guidate(hobject,handles);  %Update gui handles structure

Answer 1

[Adam]

Depending whether you pasted that code in to the question box or just typed it out there are two typos on the final line. If you pasted directly from your code these are likely your problem:

guidate(hobject,handles);

should read

guidata(hObject,handles);

instead.

I would have thought it would throw an error on guidate, but I guess evaluation of the arguments throws its error before the function/variable 'guidate' not existing.

[Jason]

Thanks Adam.