Editing Multiple Drawings with the Same Program

[jesset]

Hey all,

 

New to C# and trying to slowly get my way around.

 

I can get a variation of my code to work with MDIActiveDocument but what I really want my program to do is allow the user to select a bunch of drawings and then perform some edits to them.

 

I am just trying to get some text inside of an excel file inputted into the .dwg file.

Here is my retag.cs file

using Autodesk.AutoCAD.Runtime;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

[assembly: CommandClass(typeof(retag.Retag))]

namespace retag
{
    internal class Retag
    {
        [CommandMethod("DwgRetag")]
        public void DwgRetag()
        {
            // get the excel information
            ExcelHandler xlHandler = new ExcelHandler();

            Dictionary<string, List<(string, string)>> tags = xlHandler.GetTagInfo();

            // get the list of .dwgs
            dwgHandler dwgHandler = new dwgHandler();

            List<string> dwgs = dwgHandler.GetListOfDwgs();

            dwgHandler.AddTags(tags, dwgs);

        }
    }
}

 

here is the dwgHandler.cs file

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

using Autodesk.AutoCAD.ApplicationServices;
using Autodesk.AutoCAD.DatabaseServices;
using Autodesk.AutoCAD.EditorInput;
using Autodesk.AutoCAD.Geometry;
using Autodesk.AutoCAD.Runtime;

using System.Windows.Forms;
using Application = Autodesk.AutoCAD.ApplicationServices.Application;
using System.IO;
using Exception = System.Exception;

namespace retag
{
    internal class dwgHandler
    {

        public dwgHandler() { }

        public List<string> GetListOfDwgs()
        {
            List<string> dwgFiles = new List<string>();

            // Create an OpenFileDialog to select .dwg files
            OpenFileDialog openFileDialog = new OpenFileDialog
            {
                Filter = "DWG files (*.dwg)|*.dwg",
                Multiselect = true // Allow multiple file selection
            };

            // Show the dialog and get the result
            DialogResult result = openFileDialog.ShowDialog();

            if (result == DialogResult.OK)
            {
                // Add the selected file paths to the list
                foreach (string filePath in openFileDialog.FileNames)
                {
                    dwgFiles.Add(filePath);
                }
            }

            return dwgFiles;
        }

        public void AddTags(Dictionary<string, List<(string, string)>> tags, List<string> dwgs) 
        {

            string documentName;				// the document name
            List<(string, string)> dwgTags;		// drawing tags

            foreach (string filePath in dwgs)
            {
                dwg acDwg = new dwg(filePath);

                // get the tags per drawing
                documentName = Path.GetFileNameWithoutExtension(filePath).ToUpper();

                if (tags.TryGetValue(documentName, out dwgTags))
                {
                    
                    acDwg.addTags(dwgTags);
                    acDwg.CloseAndSave();

                } else
                {
                    continue;
                }
 
            }
        
        }

    }
}

 

and the dwg.cs is:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

using Autodesk.AutoCAD.ApplicationServices;
using Autodesk.AutoCAD.Colors;
using Autodesk.AutoCAD.DatabaseServices;
using Autodesk.AutoCAD.EditorInput;
using Autodesk.AutoCAD.Geometry;
using Autodesk.AutoCAD.Runtime;
using Exception = System.Exception;

namespace retag
{
    internal class dwg
    {
        private Document doc;
        private Database acDb;
        private Editor ed;

        public dwg(string filePath) 
        {
            doc = Application.DocumentManager.Open(filePath, false);
            acDb = doc.Database;
            ed = doc.Editor;

        }

        public void CloseAndSave()
        {
            try
            {
                // Save the current document
                doc.Database.SaveAs(doc.Name, true, Autodesk.AutoCAD.DatabaseServices.DwgVersion.Current, doc.Database.SecurityParameters);
                Console.WriteLine("Document saved successfully.");

                // Close the document
                doc.CloseAndDiscard();
                Console.WriteLine("Document closed.");
            }
            catch (System.Exception ex)
            {
                Console.WriteLine($"Error saving or closing the document: {ex.Message}");
                // Handle the exception (log, display, etc.)
            }
        }


        public void addTags(List<(string, string)> tags)
        {           
            // Define the starting coordinates
            double x = -10.0;
            double y = 21.0;
            double verticalGap = 0.2;

            // Create a new layer for the first tag in each pair
            string layerName = "old tags";
            CreateLayer(layerName);

            // Iterate through the list of tag pairs
            foreach (var tagPair in tags)
            {
                // Create the first text object (tag1) on the specified layer
                CreateText(tagPair.Item1, x, y, layerName, addBrackets: true);

                // Create the second text object (tag2) next to the first one
                CreateText(tagPair.Item2, x + 1.0, y, "0", addBrackets: false); // Assuming "0" layer for tag2

                // Move to the next row
                y -= verticalGap;
            }

        }

        private ObjectId CreateLayer(string layerName)
        {
            using (Transaction tr = this.acDb.TransactionManager.StartTransaction())
            {
                try
                {
                    LayerTable layerTable = (LayerTable)tr.GetObject(acDb.LayerTableId, OpenMode.ForWrite);

                    if (!layerTable.Has(layerName))
                    {
                        // Create a new layer if it doesn't exist
                        using (LayerTableRecord newLayer = new LayerTableRecord())
                        {
                            newLayer.Name = layerName;
                            newLayer.Color = Color.FromColorIndex(ColorMethod.ByAci, 3); // Set color to green


                            ObjectId newLayerId = layerTable.Add(newLayer);
                            tr.AddNewlyCreatedDBObject(newLayer, true);

                            // Commit the transaction
                            tr.Commit();

                            return newLayerId;
                        }
                    }
                    else
                    {
                        // Layer already exists, return its ObjectId
                        return layerTable[layerName];
                    }
                }
                catch (Exception ex)
                {
                    // Handle exceptions (log, display, etc.)
                    Console.WriteLine($"Error creating layer: {ex.Message}");
                    return ObjectId.Null;
                }
            }
        }

        private void CreateText(string text, double x, double y, string layerName, bool addBrackets)
        {
            if (this.doc == null)
            {
                // Handle the case where there is no active document
                return;
            }

            using (Transaction tr = this.acDb.TransactionManager.StartTransaction())
            {
                try
                {
                    BlockTable bt = (BlockTable)tr.GetObject(acDb.BlockTableId, OpenMode.ForRead);
                    BlockTableRecord btr = (BlockTableRecord)tr.GetObject(bt[BlockTableRecord.ModelSpace], OpenMode.ForWrite);

                    // Add brackets if requested
                    if (addBrackets)
                        text = $"({text})";

                    DBText textEntity = new DBText
                    {
                        TextString = text,
                        Position = new Point3d(x, y, 0),
                        Layer = layerName
                    };

                    btr.AppendEntity(textEntity);
                    tr.AddNewlyCreatedDBObject(textEntity, true);

                    // Commit the transaction
                    tr.Commit();
                }
                catch (Exception ex)
                {
                    // Handle exceptions (log, display, etc.)
                    Console.WriteLine($"Error creating text: {ex.Message}");
                }
            }
        }
    }
}

 

the main issue i am currently running into is that when it closes and saves, I get an error from autocad saying "error closing/writing file" and in my debug window I am getting "Exception thrown: 'Autodesk.AutoCAD.Runtime.Exception' in Acdbmgd.dll" and I cannot for the life of me figure out why this is happening. My google-fu comes up with stuff that I am confident I am not doing.

 

Any and all help is appreciated.