Get value of a variable from one popupmenu1 function and use it in different popmenu2 function

Question

Sanjay Agrawal 2013-5-29

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https://ww2.mathworks.cn/matlabcentral/answers/77297-get-value-of-a-variable-from-one-popupmenu1-function-and-use-it-in-different-popmenu2-function

Hi; I am doing GUI which has two popup menu functions.

I defined the value of a variable x in popupmenu1 function. and want to use the value of x in popupmenu2. plz anybody tell me how can i use this??

For example->

function popupmenu1_Callback(hObject, eventdata, handles)
b=get(handles.popupmenu1, 'value');
switch b
    case 1   
       x=0:.1:1;
    case 2
      x=0:.1:10;               
    case 3
       x=0:.1:100; 
end
function popupmenu2_Callback(hObject, eventdata, handles)

[In this function, I want to use the value of x.]

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Answer 1

Walter Roberson 2013-5-29

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You cannot do that as-is. "x" is local to the workspace of popupmenu1_Callback and will disappear as soon as that callback finishes. You need to save the value of x in a place that the other callback can get at it.

http://matlab.wikia.com/wiki/FAQ#How_can_I_share_data_between_callback_functions_in_my_GUI.3F

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Sanjay Agrawal 2013-5-29

Thanx Walter for your reply. But I found out the solution. Here is the code, may be helpful for you.

function popupmenu1_Callback(hObject, eventdata, handles) b=get(handles.popupmenu1, 'value'); switch b case 1 x=0:.1:1; case 2 x=0:.1:10; case 3 x=0:.1:100; end handles.x=x guidata(hObject,handles) In the second callback

function popupmenu2_Callback(hObject, eventdata, handles) x=handles.x

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