Hello All,

I am planning to use inheritance for forms which have similar controls
and properties. I tried to do it with a small example, but I am facing
some issues.

I created a base form (with 2 butttons) with overridable event
procedures. In the inheritance I created a 2 overriding event
procedures. The startup object was the base form. In the base form
button2 procedure I am calling the inherited form. The inherited form
loads but the inherited form button2 procedure fires twice. Why is
that? Please help me.

thank you in advance.

Ravi

Ravimama wrote:
I suspect you might be doing this:

base form:
Overrideable Sub Button2_Click(sender, e) Handles Button2.Click
    'base button2 click behaviour
End Sub

derived form:
Overrides Sub Button2_Click(sender, e) Handles Button2.Click
    'derived button2 click behaviour
End Sub

Because there are two Handles clauses, they will BOTH be called on
Button2.Click. What you should do is this:

base form:
Sub Button2_Click(sender, e) Handles Button2.Click
    OnButton2Click
End Sub

Protected Overrideable Sub OnButton2Click()
    'base button2 click behaviour
End Sub

derived form:
Overrides Sub OnButton2Click()
    'maybe:
    MyBase.OnButton2Click
    'derived button2 click behaviour
End Sub

Thanks mate! It worked. This is what I was looking for.

Collections challenge (MRU)
Retrieve data from xml document
Determining the Browser and event.keyCode vs. event.which
difference between ME and MYCLASS
Createing the Domain searce dialog
Changing the checked state of Dynamically added checkboxes
hair cross cursor
advice needed for a good book to make good database applications
How select from 2 ADO.NET DataTables?
Retainig location in autopostback