Dear All
I was working with FlowChart.Net for quite some time without any problem. Now I am stuck with a strange problem. I didnot find any option to attach files otherwise  I will attach a solution (vs 2008) with three projects inside. Explanation for the problem is below:

1) I made a class called "PurchasedComponent" in a project called "ThirdPartyComponent"

2) I made a class called "MyBaseClass" Inheriting from ShapeNode. I declared two methods in it which will be overrided in the sub classes. One of them is using ThirdPartyComponent.PurchasedComponent as a parameter.The class is placed in a project called "MyComponents"

Protected Overridable Sub SavePurchasedComponent(ByVal purComp As ThirdPartyComponent.PurchasedComponent)
Protected Overridable Sub SaveInteger(ByVal someInt As Integer)

3) I made one more class called "MyOwnSubClass" inheriting from "MyBaseClass". This means that MyOwnSubClass is grandchild of ShapeNode class. Both of these classes are placed in a project called "MyComponents". Now this class is going to override two methods of "MyBaseClass" as well as one method of "ShapeNode" class.
From ShapeNode
Protected Overrides Sub SaveToXml(ByVal xmlElement As System.Xml.XmlElement, ByVal context As MindFusion.Diagramming.XmlPersistContext)
From MyBaseClass
Protected Overrides Sub SavePurchasedComponent(ByVal purComp As ThirdPartyComponent.PurchasedComponent)
Protected Overrides Sub SaveInteger(ByVal someInt As Integer)

4) I made one more class called "OtherSubClass" inheriting from "MyComponents.MyOwnSubClass". Please notice that this class will be placed in a seperate project called "TestWin". A reference to MyComponents project has already been added. Now this class is going to override the same methods.

From ShapeNode
Protected Overrides Sub SaveToXml(ByVal xmlElement As System.Xml.XmlElement, ByVal context As MindFusion.Diagramming.XmlPersistContext)
From MyBaseClass
Protected Overrides Sub SavePurchasedComponent(ByVal purComp As ThirdPartyComponent.PurchasedComponent)
Protected Overrides Sub SaveInteger(ByVal someInt As Integer)

5) Compilation Failed. The two methods of MyBaseClass has been overriden successfully but not SaveToXml method of Shapenode class.  Check the image attached. If you try to override some other method e.g.
Public Overrides Function AcceptLinks(ByVal outgoing As Boolean) As Boolean
It will work just fine. After investigating I found out that the problem is with the parameter "ByVal context As MindFusion.Diagramming.XmlPersistContext".  You can override any method that does not have XmlPersistContext as a parameter.

6) You can declare a new overridable  method in MyBaseClass having XmlPersistContext as one of its parameter. Try to override in MyOwnSubClass (WHICH IS IN THE SAME PROJECT). It will work fine. Try to override it in "OtherSubClass" (WHICH IS IN ANOTHER PROJECT) and it will fail...

Can someone put some light?

Already emailed to support with full solution.

Yes, we have received it.

First it worked .. second I don't know why.  ... Both the projects were referencing the copies of the same Dlls placed insided their bin folders.


Anyway thanks for such a quick help.