Topic: global variable?

[MexicanCustard]

What's the best way to keep track of things between method calls?

I.E. I'm isolating layers on one method call "IsolateNestedEntities". Then I want to revert the layer's on/off back to pre-isolation "UnIsolateNestedEntities"?

Currently I'm using a global variable,  will this stay the same if the user changes active documents during the session or is a new instance started for each document?

[It's Alive!]

If is per document storage you're looking for,  have a look at Autodesk.AutoCAD.ApplicationServices.Document.UserData

[kaefer]

If is per document storage you're looking for,  have a look at Autodesk.AutoCAD.ApplicationServices.Document.UserData

Why do I need the UserData hashtable at all when I can instantiate arbitrary data structures in the constructor of the class containing instance command methods? I.e.

Code: [Select]

    public class MyCommandClass
    {
        MyData myData = null;
        MyCommandClass() {
            mydata = new MyData();
        }

        [CommandMethod("InstanceCommand")]
        public void InstanceCommand() {
            // There's a MyData instance for each Document the command runs in
            ...
        }
    }


[kaefer]

If is per document storage you're looking for,  have a look at Autodesk.AutoCAD.ApplicationServices.Document.UserData

Why do I need the UserData hashtable at all when I can instantiate arbitrary data structures in the constructor of the class containing instance command methods?

Answering my own question: I need it if I want to know what the UserData for the other Documents is, of course.

[It's Alive!]

Also, I prefer static command methods over non, there is a bit less overhead when invoking.

[MexicanCustard]

Thanks guys! That answers my question.

Doing a search on UserData I found this:
http://through-the-interface.typepad.com/through_the_interface/2006/10/perdocument_dat_1.html