private Graph CreateGraph()
        {
            Graph finalgraph = new Graph();

            List<Node> Nodes = dbNodes.getAllNodes();
            List<Battery> Batteries = dbBattery.getAllBatteries();

            foreach (Node node in Nodes)
            {
                foreach (Battery battery in Batteries)
                {
                    if (battery._station != null)
                    {
                        if (node.Data._id == battery._station._id)
                        {
                            node.Data.AddBattery(battery);
                        }
                    }
                }

                Battery batteryCharged = node.Data.Batteries.Find(
                        delegate(Battery bttr)
                        {
                            return bttr._status == Battery.Status.Charged;
                        }
                        );

                if (batteryCharged != null)
                {
                    finalgraph.AddNode(node);
                }
            }

            Debug.WriteLine("count: "+finalgraph.Nodes.Count().ToString());

            foreach (Node node in finalgraph.Nodes)
            {
                List<List<int>> Neighbors = dbNeighbors.getAllNeighbors(node);
                foreach (int i in Neighbors.ElementAt(0))
                {
                    int count = 0;
                    foreach (Node Neighbor in finalgraph.Nodes)
                        if (Neighbor.Id == i)
                        {
                            finalgraph.AddDirectedEdge(node, Neighbor, Neighbors.ElementAt(1).ElementAt(count));
                        }
                    count++;
                }
            }
            return finalgraph;
        }
        private Graph GoogleMapsAddEdges(Graph inputGraph,Node startNode, Node endNode)
        {
            string startNodeAddress = startNode.Data._street+"+"+startNode.Data._streetNo+"+"+startNode.Data._zipCode+"+Danmark|";
            string endNodeAddress = endNode.Data._street + "+" + endNode.Data._streetNo + "+" + endNode.Data._zipCode + "+Danmark";
            string destination = "";
            string origins = startNodeAddress+endNodeAddress;

            foreach (Node node in inputGraph.Nodes)
            {
                destination += node.Data._street + "+" + node.Data._streetNo + "+" + node.Data._zipCode + "+danmark|";
            }

            destination = destination.Substring(0, destination.Length - 1);

            string DownloadString = "https://maps.googleapis.com/maps/api/distancematrix/json?origins=" + origins + "&destinations=" + destination + "&mode=driving&language=da&sensor=false";
            //string DownloadString = "E:/Windows/Documents/DM76-gruppe7/testjson.json";

            WebClient webclient = new WebClient();

            dynamic result = JsonValue.Parse(webclient.DownloadString(DownloadString));

            if (result.status == "OK")
            {
                for (int i = 0; i < result.rows.Count; i++)
                {
                    for (int j = 0; j < result.rows[i].elements.Count; j++)
                    {
                        if (result.rows[i].elements[j].status == "OK")
                        {
                            if (result.rows[i].elements[j].distance.value > 100000 && result.rows[i].elements[j].distance.value < 140000)
                            {
                                if (i == 0)
                                {
                                    inputGraph.AddUndirectedEdge(startNode, inputGraph.Nodes.ElementAt(j), (int)result.rows[i].elements[j].distance.value);
                                }
                                else
                                {
                                    inputGraph.AddUndirectedEdge(endNode, inputGraph.Nodes.ElementAt(j), (int)result.rows[i].elements[j].distance.value);
                                }
                            }
                        }
                    }
                }
            }

            inputGraph.AddNode(startNode);
            inputGraph.AddNode(endNode);

            return inputGraph;
        }