topic Re: How to receive selected object data from AutoCAD with mouse wheel enabled (PromptSelection / SendStringToExecute) in .NET Forum

How to receive selected object data from AutoCAD with mouse wheel enabled (PromptSelection / SendStringToExecute)

Soojung_Kim — Tue, 28 Jun 2022 16:48:34 GMT

Hi, I'm fairly new to writing an add-in with .NET for AutoCAD.

In this tool, I want to ask the user to select objects in the drawing and receive that object data back to my code.

I know the PromptSelection method allows that, but when I use that, I can't use the mouse wheel to move or pan. I can only zoom in and out and select. Is there a way to 'unlock' the mouse wheel function?

// Request for objects to be selected in the drawing area PromptSelectionOptions pso = new PromptSelectionOptions(); pso.MessageForAdding = "Select Pipes"; PromptSelectionResult acSSPrompt = ed.GetSelection(pso); // Allows to bring back the selected objects, but mouse wheel doesn't work for pan, only works for zoom

So I've tried SendStringToExecute method because that allows me to use the mouse wheel , but then I don't know how to get the selected data back to my code.

private void GetObject_Click(object sender, RoutedEventArgs e) { try { _document = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument; _document.SendStringToExecute("GETOBJECT ", false, false, true); } finally { } } [CommandMethod("GETOBJECT")] public void GetObject() { Document doc = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument; DocumentLock dl = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument.LockDocument(); var ed = doc.Editor; using (Transaction ts = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument.Database.TransactionManager.StartTransaction()) { try { // Request for objects to be selected in the drawing area PromptSelectionOptions pso = new PromptSelectionOptions(); pso.MessageForAdding = "Select Pipes"; PromptSelectionResult acSSPrompt = ed.GetSelection(pso); // how do I use this data back in my code? } } }

Can someone please share some ideas?

Thanks!

Re: How to receive selected object data from AutoCAD with mouse wheel enabled (PromptSelection / SendStringToExecute)

quangpt.tric — Tue, 05 Jul 2022 11:10:28 GMT

Hi @Soojung_Kim ,

you can add list<Entity> of your selection, and use this code:

Editor ed = Application.DocumentManager.MdiActiveDocument.Editor; ed.SetImpliedSelection(lstEnts.Select(ent => ent.ObjectId).ToArray());

Re: How to receive selected object data from AutoCAD with mouse wheel enabled (PromptSelection / SendStringToExecute)

essam-salah — Tue, 05 Jul 2022 13:14:29 GMT

hi @Soojung_Kim

public class SomeClass { ObjectId[] _currentSelection; private void GetObject_Click(object sender, RoutedEventArgs e) { try { _document = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument; _document.SendStringToExecute("GETOBJECT ", false, false, true); if (_currentSelection == null) return; //// TO DO //using (var tr = _document.Database.TransactionManager.StartTransaction()) //{ // foreach (var id in _currentSelection) // { // var obj = id.GetObject(OpenMode.ForWrite) as Line; // } // tr.Commit(); //} } finally { } } [CommandMethod("GETOBJECT")] public void GetObject() { Document doc = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument; DocumentLock dl = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument.LockDocument(); var ed = doc.Editor; using (Transaction ts = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument.Database.TransactionManager.StartTransaction()) { // Request for objects to be selected in the drawing area PromptSelectionOptions pso = new PromptSelectionOptions(); pso.MessageForAdding = "Select Pipes"; PromptSelectionResult acSSPrompt = ed.GetSelection(pso); // how do I use this data back in my code? _currentSelection = null; if (acSSPrompt.Status != PromptStatus.OK) return; _currentSelection = acSSPrompt.Value.GetObjectIds(); } } }

Re: How to receive selected object data from AutoCAD with mouse wheel enabled (PromptSelection / SendStringToExecute)

Soojung_Kim — Tue, 05 Jul 2022 21:19:15 GMT

Thanks for the reply. I get the part where you stored the selected objects to _currentSelection.

Now I'm having trouble with the SendStringToCommand occurring after the TO DO part. I found this thread so trying to figure out how to implement it.. https://forums.autodesk.com/t5/net/send-command-executes-after-exiting-command-method/td-p/3882929

Haven't succeeded yet, but thanks for the advice on setting the variable outside the method!

Re: How to receive selected object data from AutoCAD with mouse wheel enabled (PromptSelection / SendStringToExecute)

Soojung_Kim — Tue, 05 Jul 2022 21:25:17 GMT

Sorry, I don't understand what you mean. Do you mean save the promptSelection output to lstEnts in your example?

Re: How to receive selected object data from AutoCAD with mouse wheel enabled (PromptSelection / SendStringToExecute)

essam-salah — Tue, 05 Jul 2022 21:47:03 GMT

Haven't succeeded yet, but thanks for the advice on setting the variable outside the method!

you can make a new post with the specific problem part you have.

Re: How to receive selected object data from AutoCAD with mouse wheel enabled (PromptSelection / SendStringToExecute)

Soojung_Kim — Fri, 08 Jul 2022 20:37:55 GMT

Thanks, I just made a new post regarding the issue I'm having! https://forums.autodesk.com/t5/net/question-re-send-command-executes-after-exiting-command-method/td-p/11286454