Use Textbox as ComboBox with out using Listbox

Dear all, GudMorning!!!
 
  Here i have one textbox.i want to bound one column in my database to this textbox.in runtime wen i entered characters it wil show intellesence to corresponding bind items.Means in combox after collection of items in run time we pick down arrow it show all members.Like dat i want to display in textbox without using listbox.please help me,,,,,,,,,,,,,,.
Thanks in advane

Regards,
VishnuVardhan.