How to read popup menu string and use it in another button function? MATLAB GUI

2013 8 23
2 个回答
回答已采纳
更新时间：2019 3 27
13 次查看（30 天）

0 个投票

I have a problem with reading a popup menu string and using it in a switch-case function in another button. My popup menu shouldn't have any function but indicating the value. But the button should know the value of popup menu and switch the case according to it. Thanks in advance.
My code:
function pushbutton1_Callback(hObject, eventdata, handles)
switch popupmenu4value
case 'A'
%function of A
case 'B'
%function of B
function popupmenu4_Callback(hObject, eventdata, handles)
contents = get(handles.popupmenu4,'String');
popupmenu4value = contents{get(handles.popupmenu4,'Value')};

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 采纳的回答

Walter Roberson
Walter Roberson 2013-8-23

4 个投票

http://matlab.wikia.com/wiki/FAQ#How_can_I_share_data_between_callback_functions_in_my_GUI.3F
contents = get(handles.popupmenu4,'String');
popupmenu4value = contents{get(handles.popupmenu4,'Value')};

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Ekin
Ekin 2013-8-23
编辑：Ekin 2013-8-23
Thanks for answer.
But it gives me "Undefined function or variable 'popupmenu4value'." on "switch" line of the button when i press the button.
Walter Roberson
Walter Roberson 2013-8-24
function pushbutton1_Callback(hObject, eventdata, handles)
contents = get(handles.popupmenu4,'String');
popupmenu4value = contents{get(handles.popupmenu4,'Value')};
switch popupmenu4value
case 'A'
%function of A
case 'B'
%function of B
end
and clear out your function popupmenu4_Callback as it will not be needed.
Image Analyst
Image Analyst 2013-8-30
Mark as "Accepted" then, so people like me don't have to waste time and come in and read all the way to the bottom only to discover it's been solved already.

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