autosuggestion in textbox from sqlserver 2005

when i type a letter 'A' it must display all related word in textbox from database.....plz help me




the code i attached is working but its not displaying the last word in database for example if i'm having words like selva,selvi,selvakumar,senna... if i type 'S' its suggesting only first three words its not displaying last word 'senna'.... could you solve my problem....