Milos，感谢您的帮助，以下代码解决了我的问题.

Milos, Thanks for your help and the below code solved my case.

  ControlClick("Database Select", "", "[Name:db_comboBox]")
  While 1
    Send("{DOWN}")
    $ctext=ControlGetText("Database Select","","[Name:db_comboBox]")
    If $ctext="DB_UKTEST" Then
        ExitLoop
    EndIf
  WEnd