Patrick,

>I have a winforms mmMaintenanceForm where specific controls are intially Visible = false.
>
>These are Shown/Hidded at runtime in a ComboBox SelectedIndexChanged event, depending on the SelectedValue.
>
>When I do a Cancel, all hidden controls are shown, Visible = true.
>The SelectedIndexChanged event isn't fired.
>
>I moved the UI update code in the SelectedIndexChanged event into a private method, and called it again in the HookPostCancel event. Works fine but seems kludgey.
>
>Any suggestions?

Make sure you turn off the AutoSetEnabled property on these controls. Check out the MM .NET Dev Guide topic "Automatically Disabling and Enabling Controls" for details.

Best Regards,