How I can make GUI edittext box to hold matrix data?

I prepared a GUI with many edit text boxes which I want to use for calculations. I want to be sure the edit text boxes are actually holding the matrix data inserted into them. Each of the edit text box is prepared as multiline text box. All the result am getting are NaNs. Thank for helping out.

Answer 1

[Fangjun Jiang]

Can you try uitable() instead?

http://www.mathworks.com/help/techdoc/ref/uitable.html

Answer 2

[Walter Roberson]

Could you show us an example output from

t = get(ABoxHandle, 'String');
class(t)
size(t)
if iscell(t); v = t{1}); else; v = t(1,:)); end
disp(v)
str2num(v)

and please also show how you are currently converting the text to numbers.