How to read data/number from dynamically added text boxes by 'for' loop using GUI ?
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I have created a GUI which dynamically (during the run time) adds text boxes on the interface as per the requirement of the user by using 'for' loop. Now, I am interested in writing the values (user entered) from the dynamically added text boxes to Excel sheet by using 'for' loop. Problem that I am facing is that I am not able to retrieve the data from dynamically added text boxes by using loop..as they don't have tag names to refer. What shall I do to retrieve the data from dynamically added text boxes?
Thanks in Advance.
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Geoff Hayes
2017-3-26
0 个投票
Vysser - if you are dynamically creating edit text boxes, then why not maintain a list of all the handles to these text boxes? If you have the handle to the control, then you can get its String property...which is the value entered by the user.
5 个评论
Vysser D
2017-3-26
Geoff Hayes
2017-3-27
Vysser - I think the following would work
for i=1:n
myString = char(get(handles.hEdit(i),'String'));
% write string to excel file
end
The char may not be necessary (and you may want to do a conversion from a string to a double/number).
Vysser D
2017-3-27
Geoff Hayes
2017-3-27
When you update the handles structure like you have done with
handles.hEdit(i)=uicontrol('Style', 'edit', '....
then you need to remember that you are only updating a local copy of handles. If you want to save the updated structure so that it is available to other callbacks, then you need to call guidata as
for i=1:n
handles.hEdit(i)=uicontrol('Style', 'edit', ...
'Position', [500, 50 + (i-1)*100, 101, 51]);
end
guidata(hObject,handles);
I'm assuming that there is an hObject. If the above doesn't work, then you will need to show more of your code.
Vysser D
2017-3-27
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