Drop Down List with a tree-like look

give me a example that is use asp.net,sql server,jquery.

I need to build a dropdown that will loo开发者_运维技巧k like this City1 -Town11 City2 -Town22 -Town33 --Town444 ---Town5555 thanks in advance!

A "drop-down tree"? Are you referring to cascading select elements? Note also that the "SQL Server" part has absolutely nothing to do with the UI. Where the data comes from is irrelevant.

Use ASP.NET AJAX Cascading Drop Down Control to Access a Database

this may be what you're looking for