Hello Firoz,
Can you please send us your example project or post your code (email: support@nevron.com). That way we will be able to assist you.
Emil, the evaluation version of Nevron Diagram is fully-functional and you should be able to build a prototype project. Currently we are providing support for data import, you can take a look at the following examples: Graph Data Import; Tree Data Import;
In order to perform the opposite – insert, update, delete the DB when manipulating the diagram, you will need to provide your own logic and this functionality can be developed on your side. This functionality will be very specific based on the requirements.
Nevron Software provides specialized consulting and custom development services for professional customization and enhancement of your projects to meet specific requirements. Custom development is hourly based and we will provide pricing quote prior to undertaking the development and after we receive detailed information for the work that has to be implemented.
Best Regards,
Nevron Support Team