New to .NET - Loading and Running an Application

[DGCSCAD]

I'm just starting out with .NET and am trying to get this code (from Norman Yuan) to run:

using System.Collections.Generic;
using System.Linq;
using Autodesk.AutoCAD.DatabaseServices;
using Autodesk.AutoCAD.Runtime;
using ConsoleApp1;
using CadApp = Autodesk.AutoCAD.ApplicationServices.Application;

[assembly: CommandClass(typeof(MyCommands))]

namespace ConsoleApp1
{
    public class MyCommands
    {
        [CommandMethod("ListDataLinks")]
        public static void GetDataLinks()
        {
            var dwg = CadApp.DocumentManager.MdiActiveDocument;
            var ed = dwg.Editor;

            try
            {
                var links = GetDataLinksInDb(dwg.Database);
                if (links.Count() > 0)
                {
                    ed.WriteMessage("\nExcel Data Link(s) found in current drawing:");
                    foreach (var link in links)
                    {
                        ed.WriteMessage($"\n\t{link}");
                    }
                    ed.WriteMessage("\n");
                }
                else
                {
                    ed.WriteMessage("\nNo Excel Data Link found in current drawing.\n");
                }
            }
            catch (System.Exception ex)
            {
                ed.WriteMessage("\nError:\n{0}.", ex.Message);
            }
            finally
            {
                Autodesk.AutoCAD.Internal.Utils.PostCommandPrompt();
            }
        }

        [CommandMethod("UpdateDataLink")]
        public static void RepathDataLink()
        {
            var dwg = CadApp.DocumentManager.MdiActiveDocument;
            var ed = dwg.Editor;

            string linkName = "JEI - Cable";
            string newSource = @"C:\PRD\Apps\LISP\Datalink Test\Data Link Test 002.xlsx";

            using (var tran = dwg.TransactionManager.StartTransaction())
            {
                var link = GetDataLink(linkName, dwg.Database, tran);
                if (link != null)
                {
                    var source = link.ConnectionString;
                    CadApp.ShowAlertDialog($"Data Link: \"{linkName}\"" +
                        $"\nCurrent Link Source: \"{source}\"");

                    var suffix = "";
                    var pos = source.IndexOf("!");
                    if (pos > 0)
                    {
                        suffix = source.Substring(pos + 1);
                    }

                    if (!string.IsNullOrEmpty(suffix))
                    {
                        newSource = newSource + "!" + suffix;
                    }

                    if (!link.IsWriteEnabled) link.UpgradeOpen();
                    link.ConnectionString = newSource;
                    link.Update(UpdateDirection.SourceToData, UpdateOption.AllowSourceUpdate);
                }

                tran.Commit();
            }

        }

        private static IEnumerable<string> GetDataLinksInDb(Database db)
        {
            var links = new List<string>();

            using (var tran = db.TransactionManager.StartTransaction())
            {
                var dic = (DBDictionary)tran.GetObject(db.DataLinkDictionaryId, Autodesk.AutoCAD.DatabaseServices.OpenMode.ForRead);
                foreach (DBDictionaryEntry entry in dic)
                {
                    links.Add(entry.Key);
                }

                tran.Commit();
            }

            return links;
        }

        private static DataLink GetDataLink(string linkName, Database db, Autodesk.AutoCAD.DatabaseServices.Transaction tran)
        {
            DataLink link = null;
            var dic = (DBDictionary)tran.GetObject(db.DataLinkDictionaryId, Autodesk.AutoCAD.DatabaseServices.OpenMode.ForRead);
            foreach (DBDictionaryEntry entry in dic)
            {
                if (entry.Key.ToUpper() == linkName.ToUpper())
                {
                    link = (DataLink)tran.GetObject(entry.Value, Autodesk.AutoCAD.DatabaseServices.OpenMode.ForRead);
                    break;
                }
            }

            return link;
        }
    }
}

It builds with no errors and I think it's loading when I NETLOAD it, but I get an "Unkown Command" when I run a command (UpdateDataLink) from the code.

Not sure of what I'm missing...?

[_gile]

Hi,

namespace ConsoleApp1

Sounds strange...

You have to understand the basics of .NET and how to to build a plugin (a dll netloaded from AutoCAD).

To build an AutoCAD plugin project, you can start from here.

[DGCSCAD]

---

@_gile wrote:

Hi,

namespace ConsoleApp1

Sounds strange...

You have to understand the basics of .NET and how to to build a plugin (a dll netloaded from AutoCAD).

To build an AutoCAD plugin project, you can start from here.

---

I will run through the tutorial. Thank you Gile.