event-handling subs running twice in derived class.

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Greetings,

I created a base class that has a datagrid. I've made it generic as
possible so that any derived classes pass some info to the base
constructor (including a SQL select stmt) & through the base class, any
db table can be displayed/maintained in the grid.

I've made some of the base class' event-handling subs overridable and in
some of the derived classes using the base, the subs are being
overridden:

Public Overrides Sub ToolBar1_ButtonClick(ByVal sender As
System.Object, ByVal e As
System.Windows.Forms.ToolBarButtonClickEventArgs) Handles
ToolBar1.ButtonClick

Overrides... "Handles Toolbar1.buttonClick" - My problem is that when
any button on the toolbar is clicked via a project with the derived
class, the sub in the derived class is called twice in a row. I've
gotten around this problem with a kludgy global variable that detects
the second consecutive call, but I don't like it and I know I must be
doing something wrong. It's not just the toolbar button click event but
apparently any overriding event-handling sub gets called (from the
derived class) twice.

Any ideas?

THANK YOU!

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