Riho-Rene,

> Currently it is recommended to use EditMask, but I don't like the thin
> line this generates at the bottom of EditField.
> It makes this field look different from all others.

You can change the "thin line" to any character you want,
including a white space. See the Delphi help for EditMask.
For example, to have it look like all other TIB_Edits and
allow only 5 chars input the mask look like this:

ccccc;;
-------^ be sure to put a white space here as last character
after the semicolon.

Harald