ComboBox.EnterFieldBehavior Property (Outlook Forms Script)
Returns or sets an Integer that specifies the selection behavior when entering a ComboBox. Read/write.
expression A variable that represents a ComboBox object.
The possible values of EnterFieldBehavior are 0 and 1. 0 represents selecting the entire contents of the edit region when entering the control (default). 1 represents leaving the selection unchanged. Visually, this uses the selection that was in effect the last time the control was active.
The EnterFieldBehavior property controls the way text is selected when the user tabs to the control, not when the control receives focus as a result of the SetFocus method. Following SetFocus, the contents of the control are not selected and the insertion point appears after the last character in the control's edit region.
You can combine the effects of the EnterFieldBehavior property and DragBehavior to create a large number of combo box styles.