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

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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'));
if isnan(speedVector(box)) || isnan(timeVector(box))
speedVector(box) = [];
timeVector(box) = [];
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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Image Analyst
Image Analyst on 11 Apr 2013
I don't know what Mahdi means by "list." I don't know what a list is. If he means a listbox, or a popup (what MATLAB calls a drop-down list), neither one lets the user type in something, plus you can't put a text label in front of it nicely like you can with 20 edit fields. See my answer below.
Mahdi on 12 Apr 2013
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 on 12 Apr 2013
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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Accepted Answer

Image Analyst
Image Analyst on 11 Apr 2013
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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Image Analyst
Image Analyst on 11 Apr 2013
You know how many edit boxes you placed on your GUI. If you add two more, just copy and paste two lines, and edit them for the new names. That's simple. I think in an attempt to have it in a for loop, you're making it more complicated, not less!
Jonathan on 11 Apr 2013
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 on 11 Apr 2013
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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