selecteditem - Handling selected item changed in mvvm from a user control -

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i have user control defined in separate project (to reuse) has 2 comboboxes , button. using user control in other projects. user control has view model class. view model class handles selected item changed in combobox , has command delegate handle button click.

now question when use user control within control in project want event raised within owning control whenever new item selected in combobox. also, when button clicked in resuable control want event raised in owning control can execute additional logic. can suggest best way handle this?

thanks, ranjith


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