how can i choose data in the popupmenu in GUI?

hello everyone, i have data that is for two months, January and July, the data is called class9_data, i already programmed the push-button to execute some analysis, but the thing is how can i tell the function to choose the month of data first then execute the function, i wrote this code but it is not working: Note: K is an index representing the two months or the two files to be read. please help

cla;
    M{K}=Class9_data{K};
    state=get(handles.popupmenu1,'value');   
    switch state
        case 1
            set(handles.push1,'Class9_data{K}',all_mat(MonthName{K} == 1, :));

          case 2
              set(handles.push1,'Class9_data{K}',all_mat(MonthName{K} == 7, :));
      end

[Greg]

set(handles.push1,'Class9_data{K}',...)

Is trying to set a literal property named "Class9_data{K}" of a pushbutton object. This can't work.

Calling set doesn't execute the button's callback if that's what you're going for. Provide some more detail and we might be able to help you.

[MAHMOUD ALZIOUD]

Thank you very much, I solved it, how can I please accept your answer?

[Greg]

I posted a comment rather than an answer, so there's nothing to accept.

Glad you got it working.