The format I would like to allow in my text boxes are comma delimited lists followed by a line break in between the comma delimited lists. Here is an example of what I want from the user:
1,2,3
1,2,4
1,2,5
1,2,6
So far I have limited the user using this ValidationExpression:
^([1-9][0-9]*[]*[ ]*,[ ]*)*[1-9][0-9]*$
However with that expression, the user is only able to enter one row of comma delimited numbers.
How can proceed to accept multiple rows by accepting line breaks?