Loading in to the POPUP menu of GUI
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hello.. Is there a code to load a value to the popup menu from .mat file... there should be an option to select or change the data even after loading the value!!
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Geoff Hayes
2015-2-16
Madhu - you can always reset the data in the popup menu by doing something like
set(handles.popupmenu1,'String',{'option a', 'option b', 'option c'});
The above line of code assumes that you have create a GUI using GUIDE and so have access to the handles structure and, in particular, the popup menu which is named popupmenu1.
If you wish to load some string options from a mat file, then you could do that as well. For example, suppose that we have created a mat file as
% create the cell array of string options
myOptions = {'A1','A2','A3'};
% save to a mat file
save('myOptions.mat','myOptions');
Then, in your GUI (perhaps the _OpeningFcn or in a callback) you would do the following
% load the data from the mat file
data = load('myOptions.mat','myOptions');
% update the popup menu
set(handles.popupmenu1,'String',data.myOptions);
Try the above and see what happens!
Yoav Livneh
2015-2-17
编辑：Yoav Livneh
2015-2-17
You need to save and load the "Value" property of the popup menu. For example, taking Geoff Hayes's case:
% get the value from the popup menu
val = get(handles.popupmenu1,'value');
% save the data
save('selected_value.mat',val);
% load the data
val = load('selected_value.mat');
% update the popup menu
set(handles.popupmenu1,'value',val.val);
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