AutoComplete – looking for a combobox with extended functionality

The standard .Net control System.Windows.Forms.ComboBox has AutoComplete functionality. Does someone know a comboxbox with LARGER functionality of AutoComplete? For example: usage NOT PREFIX ONLY during the matching? In other words: if the list of possible values contains string ‘ABCDEFG’ and user has typed ‘BCD’ – to show the ‘ABCDEFG’ in drop-down list. There are variants possible: ‘prefix matching’ can be considered ad ‘more relevant and having higher rank’ than other matching types; etc.

Or some e开发者_如何学Pythonlse AutoComplete improvements?

This is extended version of textbox with auto complete.