>I have a grid in my form with 4 column with all txtbox. Only the first column can be edit by the user and the rest is readonly=.t..
>
>I like to prevent the user to jump to the next column when he edit the column1 and press enter.
>
>How can I prevent the user to jump to the next column?

In the textbox Keypress, put

if nKeycode = 13
nodefault
endif

You may need to add other values too, like for the right arrow, maybe...