GUIDE - Selecting textbox by iterations - get(handle​s.***,'Str​ing')

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Jonathan
Jonathan 2013-4-11
Hi all, I was wondering if anyone knew of a more elegant way to get the values of a list of inputs. I have 10 (possibly more) edit box inputs and I want to populate a vector with their values IF there is a value present. I can do it this way:
speedVector = [];
timeVector = [];
for box = 1:10
switch box
case 1
speedVector(1) = str2double(get(handles.speed1,'String'));
timeVector(1) = str2double(get(handles.time1,'String'));
case 2
speedVector(2) = str2double(get(handles.speed2,'String'));
timeVector(2) = str2double(get(handles.time2,'String'));
case 3
speedVector(3) = str2double(get(handles.speed3,'String'));
timeVector(3) = str2double(get(handles.time3,'String'));
case 4
speedVector(4) = str2double(get(handles.speed4,'String'));
timeVector(4) = str2double(get(handles.time4,'String'));
case 5
speedVector(5) = str2double(get(handles.speed5,'String'));
timeVector(5) = str2double(get(handles.time5,'String'));
case 6
speedVector(6) = str2double(get(handles.speed6,'String'));
timeVector(6) = str2double(get(handles.time6,'String'));
case 7
speedVector(7) = str2double(get(handles.speed7,'String'));
timeVector(7) = str2double(get(handles.time7,'String'));
case 8
speedVector(8) = str2double(get(handles.speed8,'String'));
timeVector(8) = str2double(get(handles.time8,'String'));
case 9
speedVector(9) = str2double(get(handles.speed9,'String'));
timeVector(9) = str2double(get(handles.time9,'String'));
case 10
speedVector(10) = str2double(get(handles.speed10,'String'));
timeVector(10) = str2double(get(handles.time10,'String'));
end
if isnan(speedVector(box)) || isnan(timeVector(box))
speedVector(box) = [];
timeVector(box) = [];
break
end
end
but that is clearly not a very clean way to do it. I'd like to use a loop to systematically go to each box and get a value.
Thanks! - Jon
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Mahdi
Mahdi 2013-4-12
I meant listbox to select data values from. I wasn't aware that he wanted the user to input these values (but I guess that's what an editbox is for!). Out of curiosity, wouldn't a uitable work as well?
Image Analyst
Image Analyst 2013-4-12
Like you said, with a listbox you can select prepopulated items from the list. The user cannot enter new items for speed and time, which is what Jonathan wanted to do, into a listbox.
You could enter data in a grid also - just depends on what kind of "look" you want your GUI to have.

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采纳的回答

Image Analyst
Image Analyst 2013-4-11
Why have a loop and switch statement? I see no need for either one at all. Just get every one, which you're doing anyway, without any loop!
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Jonathan
Jonathan 2013-4-11
Fair enough, I was kind of thinking of having it user-expandable in the future i.e. "Add more fields" kind of functionality.
Just for clarification, would it be possible to do what I'm asking? I can make it work regardless, but I don't have a complete grasp on handles and this seems like there would be a fairly simple solution to indexing components of a GUI... perhaps using UserData (?)
Thanks for taking your time to help me understand this, I really appreciate it.
Image Analyst
Image Analyst 2013-4-11
Yes, but you'd have to either have the max number and hide the ones you don't want/need, or you'd have to create them dynamically with uicontrol().

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