How to get IComponentMemento

.Net Add-on Programming
1

I want to use method ‘IComponentMemento.SaveState/RestoreState’, but I can’t get ‘IComponentMemento’ by ‘IoC.Get<IComponentMemento>()’ or ‘[ImportingConstructor]’.

2

IComponentMemento is not a service that can be imported from IoC.
Use IoC.Get<IUndoHelper>() or import to get the undo helper, which has method CreateComponentMemento

3

thanks, I can get the status now, but I think it not really works.

        IComponentMemento componentMemento = IoC.Get<IUndoHelper>().CreateComponentMemento();

        public void GetComponentStatus()
        {
            if (selectedComponent != null)
            {
                componentMemento.SaveState(selectedComponent);
            }
        }

        public void SetComponentStatus()
        {
            IoC.Get<IApplication>().World.DeleteComponent(selectedComponent);
            componentMemento.RestoreState();
        }

When I code like that, it will create a new component which name is the same as the selected component and the world will exist two components with the same name.

However, when I delete the selected component, the new component can’t run.

the gif will show how it works.

4

Because IComponentMemento.RestoreState() will create a new component ,so I just can delete the selected component, which deletes the connection of the component. However, use python .saveState() can work…

Maybe .NET ISimcomponent api should add a method for saving state?