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Create An Access/Quicken-Like Combo Box

Create An Access/Quicken-Like Combo Box

This example shows how to make a combo box act like those found in Quickenor Microsoft Access, without using a third-party VBX. As each characteris typed, the elements in the combo box are searched and, if a match isfound, retrieved. If a match is not found, the original typed text is restored.The only code needed resides in the KeyUp event of a combo box called combo1.The combo box is sorted alphabetically, so it stops on the first alphabeticalmatch. I use the SendMessage API to turn the redraw of the combo box offand then on when the search is complete. Here are the form-level declarations for the combo box:

 Dim strCombo As StringConst WM_SETREDRAW = &HBConst KEY_A = 65Const KEY_Z = 90Declare Function SendMessage Lib "User" _	(ByVal hWnd As Integer, _	ByVal wMsg As Integer, _	ByVal wParam As Integer, _	lParam As Any) As Long

The code in the KeyUp event looks like this:

 Dim x%Dim strTemp$Dim nRet&If Keycode >= KEY_A And Keycode 

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