How do you dropdown a Combo Box when clicked?

**pbrama** · September 29th, 2011, 08:56 PM

I have a dropdown combo box on a dialog. Of course, clicking on the dropdown "arrow", the dropdown list opens as it should. If you click on the actual text in the dropdown BEFORE it dropsdown, the text just highlights. How can we force the combo to drop down (open) when the displayed text is clicked on?

Thanks ahead of time....

**Vanaj** · September 29th, 2011, 11:28 PM

Trap for the CBN_SETFOCUS message then send a CB_SHOWDROPDOWN message to the combo box.

**VictorN** · September 30th, 2011, 02:14 AM

... or if MFC is used, the CComboBox::ShowDropDown can be used

**Igor Vartanov** · September 30th, 2011, 03:15 AM

If you click on the actual text in the dropdown BEFORE it dropsdown, the text just highlights. How can we force the combo to drop down (open) when the displayed text is clicked on?

This is normal behavior for Dropdown combo (CBS_DROPDOWN). You may try to change the combo style to Drop List (CBS_DROPDOWNLIST) unless you still need the text to remain selectable.

Combo-Box Styles

**pbrama** · October 2nd, 2011, 10:27 AM

Originally Posted by Igor Vartanov

This is normal behavior for Dropdown combo (CBS_DROPDOWN). You may try to change the combo style to Drop List (CBS_DROPDOWNLIST) unless you still need the text to remain selectable.

Combo-Box Styles

Crap!! I didn't catch that!! That was it. Sometimes the obvious is overlooked. Thank You.

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