Element: panel.maxrows
Element: panel.maxrowsnumeric
The maximum length of the panel's text value in rows. This element is valid only for panels of type text or combo_box.
For text panels the value corresponds to the -max switch at creation time. A value of 0 means there is no limit.
For combo_box panels the value is always 1.
It is a read-only element and cannot be changed after panel creation.