Sub Classing ComboBox Control

[asanjue]

Hi
I would like to create an active x control with ALL the functionality of a VB Combo but with added functionality of being able to autofill. I have the code for doing this with one combo but it is cumbersome putting the code in all the combos that i have. Is there a way of creating a control with the functionality of a combo plus added functionality that i require? Thanks

 

[Guest_imported]

This is actually quite easy.

Start a project and create an active X control; on the form place a typical combobox and then - if you are new to classes, use the VB Class Builder Utility to create the default events and properties for the combobox. You will be deep within many Property Let/Get/Sets; however, this is the long and necessary aspect of control creation. Finally create a WithEvents for the autofill procedure.

The easier method - if OOP is not your idea of a fun way to invest a few hours - is to create a module and within that module code a public procedure; for example:

Public Function AutoCompleteCombo$(Cbo as ComboBox, sText$)

End Function

and place your generic autocomplete routine in there, referencing the combobox as Cbo.Text etc & c

Then from anywhere in your project call the function as:

AutoCompleteCombo MyControl.Name, MyControl.Text

- Nick

 

[asanjue]

Thanks for answering. How do i make sure that the default events of the control i create map to those of a combo. I have tried the ActiveX control Interface Wizard but have had some problems with it.