How to show data from sql server table row to textbox autocomplete list in c#

For example in sql table I have:

Abbass

Ali

Algabail

Gonibal

Golden

...

If I write a letter A to textbox it must show, automaticly under the textbox a list of:

Abbass

Ali

Algabail

If I write a letter G to textbox it must show, automaticly under the textbox a list of:

Gonibal

Golden

as we have 2 words wich include G.

So how to do it? Please help.

Thanks!