Dynamo.Graph.Workspaces.WorkspaceModel.ApplyPreset C# (CSharp) Метод

        internal void ApplyPreset(PresetModel state)
        {
            if (state == null)
            {
                Log("Attempted to apply a PresetState that was null");
                return;
            }
            //start an undoBeginGroup
            using (var undoGroup = this.undoRecorder.BeginActionGroup())
            {
               //reload each node, and record each each modification in the undogroup
                foreach (var node in state.Nodes)
                {
                    //check that node still exists in this workspace,
                    //otherwise bail on this node, check by GUID instead of nodemodel
                    if (nodes.Select(x=>x.GUID).Contains(node.GUID))
                    {
                        var originalpos = node.Position;
                        var serializedNode = state.SerializedNodes.ToList().Find(x => Guid.Parse(x.GetAttribute("guid")) == node.GUID);
                        //overwrite the xy coords of the serialized node with the current position, so the node is not moved
                        serializedNode.SetAttribute("x", originalpos.X.ToString(CultureInfo.InvariantCulture));
                        serializedNode.SetAttribute("y", originalpos.Y.ToString(CultureInfo.InvariantCulture));
                        serializedNode.SetAttribute("isPinned", node.PreviewPinned.ToString());

                        this.undoRecorder.RecordModificationForUndo(node);
                        this.ReloadModel(serializedNode);
                    }
                }
                //select all the modified nodes in the UI
                DynamoSelection.Instance.ClearSelection();
                foreach(var node in state.Nodes)
                {
                    DynamoSelection.Instance.Selection.Add(node);
                }
            }
        }