Combo Box - AutoSelectItem Property
Automatically select the first item when the list is loaded
Member of Combo Box (PRIM_CMBX)
Data Type - Boolean
Details
The AutoSelectItem property defines how the list will behave when it first receives focus.
By default, there will be no focus item when a list is loaded. By setting AutoSelectItem to True, the first item in the combo will become the focus item when the combo box receives focus.
Rather than relying on AutoSelectItem, it is recommended that you specifically set an item to focus programmatically when loading.