>I'm creating a .NET 2 winForms application.
>
>I'm need to create VFP like combobox or textbox which uses previously entered values for auto completion.
>It should remember entered value in isolated storage like vfp textbox autocomplete and use it in next time when value is entered.
>
>I think I should use Combobox autocompletesource and fill it during initialization.
>In lostfocus event I should check for new value and store it in isolated storage.
>
>Any sample how to implement this kind of combobox ?

Autocomplete has been added natively to Winforms 2.0 - this article may get you started..