Int32EditBox - Ensure Event Failed

Upon adding a new Int32EditBox to my XAML, I have the following:

<editors:Int32EditBox Name="Int32EditBox1" />

I add a tag for a ValueChanged event as follows:

<editors:Int32EditBox Name="Int32EditBox1" ValueChanged="" /> and press tab to auto generate the event routine in code behind.

However, this returns an error message": Ensure Event Error"

In the code behind I see the following code has been generated (vb.net):

Private Sub Int32EditBox1_ValueChanged(ByVal sender As System.Object , ByVal e As ActiproSoftware.Windows.PropertyChangedRoutedEventArgs`1[[System.Nullable`1[[System.Int32, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]], mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]])

End Sub

which in turn results in an error for the generated sub (too few parameters.

I can work around this manually, but am not sure what the event handling sub shuold look like / the types to be passed.

Can you please provide a sample in vb.net.

Thanks guys!