Using C# generic class with Neo4jClient

Question

I would like to create a generic class that creates nodes for multiple node class types. See example below:

public NodeReference<TObject> CreateObject(TObject objectType)
        {  
            NodeReference<TObject> nodeReference = 0;
            nodeReference = clientConnection.Create<TObject> (objectType);
            return nodeReference;
        }

However I keep getting the following error

Answer 1

You can define your method like so:

public NodeReference<TObject> CreateObject(TObject objectType)
    where TObject: class //<-- NEW BIT HERE
{  
    NodeReference<TObject> nodeReference = 0;
    nodeReference = clientConnection.Create<TObject> (objectType);
    return nodeReference;
}

by putting where TObject: class you are saying that the type of 'TObject' must always be a class (or reference type). You may need to also put:

where TObject: class, new()

but I can't remember - the new() bit means that the class has to have a constructor with no arguments (which can be the default constructor).