Binding long text message to link button in a repeter with formating

Hi,

I have a issue, i want to bind long text message to link button in repeter control with formating

means if message length > 30 then i want to show text eg.Hi sandy, How are you?....

& dispaly full message if user click on linkbutton

for that i uase Mysql query

 SELECT c.`recomend_date`,
CASE WHEN LENGTH(c.`Message`) > 30
    THEN SUBSTRING(c.`Message`,1,27) +'...' 
    ELSE c.`Message` END AS LineDescription, 
c.`Message` AS FullDescription
FROM `tbl_recommend` c where To_user_id=5
ORDER BY c.`recomend_date`;

but it's showing me LineDiscription 0

Please give me your guidence..