Can Access VBA tell the difference between typing into a combo box and selecting from a drop down?

问题

I've got a combo box, "Filter Dropdown", that triggers some VBA code on Filter_Dropdown_Change().

The problem I'm having is I want it to trigger once the final value has been selected. So, currently, it triggers when I select a value from the dropdown, which is fine, but also when I type anything, because each character counts as a change - which I don't want.

Is there a way of telling when I've finished typing a new value into the combo box? Can Access differentiate at all between selecting a pre-existing value and typing a new one?

I suspect I'm using the wrong event?

回答1:

Use AfterUpdate or BeforeUpdate event

来源：https://stackoverflow.com/questions/26545974/can-access-vba-tell-the-difference-between-typing-into-a-combo-box-and-selecting