regarding visibility of content

hi all,

i m very new to grid system...plz...help....my prob is....i have a grid.....with 4 cols...i m implementing searc functionality using substring and onkey functionality i m searching the contnet of grid...the process is like if i enter k in search text box...my grid ill disdla all contnets starting from k....if ka den ka...goes on....if i enter xar...wic is nt at all in my grid...i want whole of grid to b displayed again....stating the error msg of invalid input.but my actual grid is nt getting displayed.....can any 1 help....my quesry is if i enter wrong letters wic is nt present in my grid...i want whole of my grid to be displayed.....:(
i issue have with grid layout too...i m getting sum extra pixel added at bottom n right side of my grid.
can any1 help me out...:(