C# Drawing file write protection errors when saving drawing.

The following batch loop will work for as far as pulling up a group of drawings and saving them

when the sample routine "public static void AddCircle()" is flagged out. When I try to make drawing

changes using routine public static void AddCircle() the DrawingSaved routine give me drawing write

protection errors. How can I avoid drawing write protections errors in my batch loop.

Code is attached in file

writeProtection Errors.txt

The following batch loop will work for as far as pulling up a group of drawings and saving them

when the sample routine "public static void AddCircle()" is flagged out. When I try to make drawing

changes using routine public static void AddCircle() the DrawingSaved routine give me drawing write

protection errors. How can I avoid drawing write protections errors in my batch loop.

 

Code is attached in file

I appreciate your including some code (where's the rest of it?), but please instead use [code ] Tags in lieu of attachments.

I'm a fan of DocumentCollection.Add() over DocumentCollectionExtension.Open() personally, but if including bool forReadOnly == False doesn't work for you, consider evaluating the Document.IsReadOnly Property.

Cheers

Ok, Here is my code. I renamed my drawing names to Name-New in my batch loop

to allow the loop to work. It creates new drawings with the "-New suffix in order

to avoid the overwrite issue. It is a work-a-round. Not a solution

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;

using Autodesk.AutoCAD.Runtime;
using Autodesk.AutoCAD.ApplicationServices;
using Autodesk.AutoCAD.DatabaseServices;
using Autodesk.AutoCAD.Geometry;
using Autodesk.AutoCAD.EditorInput;
// Added for Autocad
//using Autodesk.AutoCAD.Interop.AcadDocument;
using Autodesk.AutoCAD.Interop;
namespace MyAcadCSharpPlugin1
{
   public partial class Form1 : Form
   
   {
       public Form1()
       {
        InitializeComponent();
        Document acDoc = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument;
       }

       //private string StrSaveName;
       private string strFileName;
       private string strDwgName;
        private string[] thisFormsArray;
       public string[] myArray
       {
           get
           {
               return thisFormsArray;
           }
           set
           {
               thisFormsArray = value;
           }
       } 
  private void button1_Click(object sender, EventArgs e)
       {
           FormDialog FormDialog = new FormDialog();
           Autodesk.AutoCAD.ApplicationServices.Application.ShowModelessDialog(FormDialog); 
       }

       //on form2:
       //create a method to show content of array:
               public void ShowingArray(string[] array)
       {
           //1. or to pass to some control:   
           foreach (string item in array)
           {
               listBox1.Items.Add(item);
           }

           //2. or to show in meesageBox (or similar):
           StringBuilder sb = new StringBuilder();
           foreach (string item in array)
           {
               sb.AppendLine(item);
           }
           MessageBox.Show(sb.ToString());
       }
  
       private void Form1_Load(object sender, EventArgs e)
       {
          //Document acDoc = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument;
       }
       
       private string[] StArray;  
      
       private void button4_Click(object sender, EventArgs e)
       {
           ListDrawings(); 
       }
       public void ListDrawings()
       {
           //Loop through each item in the array
           listBox1.Items.Clear();
           foreach (string myStr in thisFormsArray)
           {

               MessageBox.Show(myStr);
               listBox1.Items.Add(myStr);

           }   
       }

       public void DrawingChangeRoutine()
       {
           MessageBox.Show("Code Here");
           AddCircle();// My Sample Routine
           // SetLayerCurrent();
       }
 
 //Posted      
       private void button5_Click(object sender, EventArgs e)
       {
           //Loop through each item in the array
           //foreach (string myStr in thisFormsArray)
           BatchLoop();
       }
 //Batch loop to open close drawings   
      public void BatchLoop()
       {
           foreach (String myStr in thisFormsArray)
           {
               MessageBox.Show(myStr);
               // Open the Drawing
               strFileName = myStr;
               OpenDrawing();
               //Add Drawing Changes code here.
               AddCircle();// My Sample Routine C
               //DrawingSaved();
               SaveActiveDrawing1();
               Document doc = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument;
               //Close drawing
               doc.CloseAndDiscard();
                 }
       }
   
       //-------------------------------------------  
       public static void SaveActiveDrawing1()
       {
           Document acDoc = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument;
           int StrSaveNameLgh;
           string strDWGName = acDoc.Name;
           string StrSaveName;
           object obj = Autodesk.AutoCAD.ApplicationServices.Application.GetSystemVariable("DWGTITLED");
           //' Check to see if the drawing has been named
           if (System.Convert.ToInt16(obj) == 0)
           {
               //' If the drawing is using a default name (Drawing1, Drawing2, etc)
               //' then provide a new name
               strDWGName = "c:\\MyDrawing1.dwg";
           }
           StrSaveName = strDWGName;
           StrSaveName = StrSaveName.Remove(StrSaveName.Length - 4, 4);
           StrSaveName = StrSaveName + "-New" + ".dwg";
           MessageBox.Show(StrSaveName);

           acDoc.Database.SaveAs(StrSaveName, true, DwgVersion.Current, acDoc.Database.SecurityParameters);
           //acDoc.Database.SaveAs(strDWGName, true, DwgVersion.Current, acDoc.Database.SecurityParameters);
       }
          public void OpenDrawing()
       {
           
          // strFileName = "C:\\campus.dwg";
                       //string strFileName = myStr;
           DocumentCollection acDocMgr = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager;
           //Document doc = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument;

           if (File.Exists(strFileName))
           {
               //acDocMgr.Open(strDwgName, false);
               DocumentCollectionExtension.Open(acDocMgr, strFileName);
           }
           else
           {
               acDocMgr.MdiActiveDocument.Editor.WriteMessage("File " + strFileName +
                                                              " does not exist.");
           }
       }
//---------------
       public static void AddCircle()// My sample code
   {
              // Get the current document and database
             // Document acDoc = Application.DocumentManager.MdiActiveDocument;
              Document acDoc = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument;
              Database acCurDb = acDoc.Database;
              using (DocumentLock docLock = acDoc.LockDocument()) 
              {
              // Start a transaction
                  using (Transaction acTrans = acCurDb.TransactionManager.StartTransaction())
                  {
                      // Open the Block table for read
                      BlockTable acBlkTbl;
                      acBlkTbl = acTrans.GetObject(acCurDb.BlockTableId,
                                                      OpenMode.ForRead) as BlockTable;

                      // Open the Block table record Model space for write
                      BlockTableRecord acBlkTblRec;
                     //Here******************************************************************
                      acBlkTblRec = acTrans.GetObject(acBlkTbl[blockTableRecord.ModelSpace],
                                                      OpenMode.ForWrite) as BlockTableRecord;
                       //Heres
                      // Create a circle that is at 2,3 with a radius of 4.25
                      using (Circle acCirc = new Circle())
                      {
                          acCirc.Center = new Point3d(2, 3, 0);
                          acCirc.Radius = 4.25;

                          // Add the new object to the block table record and the transaction
                          acBlkTblRec.AppendEntity(acCirc);
                          acTrans.AddNewlyCreatedDBObject(acCirc, true);
                      }
                      // Save the new object to the database
                      acTrans.Commit();
                  }// for lockdocument
              }
          }    
//---------------
   }
}

I changed & cleaned my code a little. The code will allow me to make new drawings with the

prefix "New-" but I have not found a way to overwrite and edit existing file in C sharp

with this code.

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;

using Autodesk.AutoCAD.Runtime;
using Autodesk.AutoCAD.ApplicationServices;
using Autodesk.AutoCAD.DatabaseServices;
using Autodesk.AutoCAD.Geometry;
using Autodesk.AutoCAD.EditorInput;
// Added for Autocad
//using Autodesk.AutoCAD.Interop.AcadDocument;
using Autodesk.AutoCAD.Interop;
namespace MyAcadCSharpPlugin1
{
   public partial class Form1 : Form
   
   {
       public Form1()
       {
        InitializeComponent();
        Document acDoc = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument;
       }
       private string strFileName;
       private string strDwgName;
       private string[] thisFormsArray;
       public string[] myArray
       {
           get
           {
               return thisFormsArray;
           }
           set
           {
               thisFormsArray = value;
           }
       } 
  private void button1_Click(object sender, EventArgs e)
       {
           FormDialog FormDialog = new FormDialog();
           Autodesk.AutoCAD.ApplicationServices.Application.ShowModelessDialog(FormDialog); 
       }
       //on form2:
       //create a method to show content of array:
               public void ShowingArray(string[] array)
       {
           //1. or to pass to some control:   
           foreach (string item in array)
           {
               listBox1.Items.Add(item);
           }

           //2. or to show in meesageBox (or similar):
           StringBuilder sb = new StringBuilder();
           foreach (string item in array)
           {
               sb.AppendLine(item);
           }
           MessageBox.Show(sb.ToString());
       }
  
       private void Form1_Load(object sender, EventArgs e)
       {
          //Document acDoc = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument;
       }
       
       private string[] StArray;  
      
       private void button4_Click(object sender, EventArgs e)
       {
           ListDrawings(); 
       }
       public void ListDrawings()
       {
           //Loop through each item in the array
           listBox1.Items.Clear();
           foreach (string myStr in thisFormsArray)
           {

               MessageBox.Show(myStr);
               listBox1.Items.Add(myStr);

           }   
       }

       public void DrawingChangeRoutine()
       {
           MessageBox.Show("Code Here");
           AddCircle();// My Sample Routine
           // SetLayerCurrent();
       }
 
 //Posted      
       private void button5_Click(object sender, EventArgs e)
       {
           //Loop through each item in the array
           //foreach (string myStr in thisFormsArray)
           BatchLoop();
       }
 //Batch loop to open close drawings   
      public void BatchLoop()
       {
           foreach (String myStr in thisFormsArray)
           {
               MessageBox.Show(myStr);
               // Open the Drawing
               strFileName = myStr;
               OpenDrawing();
               //Add Drawing Changes code here.
               AddCircle();//Sample code routine to add circle in model space
               //DrawingSaved();
               SaveActiveDrawing1();
               Document doc = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument;
               //Close drawing
               doc.CloseAndDiscard();
                 }
       }
   
       //-------------------------------------------  
       public static void SaveActiveDrawing1()
       {
           Document acDoc = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument;
           int StrSaveNameLgh;
           string strDWGName = acDoc.Name;
           string StrSaveName;
           string StrFileName;
           string StrPathName;
           String StrPath;
           object obj = Autodesk.AutoCAD.ApplicationServices.Application.GetSystemVariable("DWGTITLED");
           //' Check to see if the drawing has been named
           if (System.Convert.ToInt16(obj) == 0)
           {
               //' If the drawing is using a default name (Drawing1, Drawing2, etc)
               //' then provide a new name
               strDWGName = "c:\\MyDrawing1.dwg";
           }
           StrPathName = strDWGName;
           StrPathName = StrPathName.Remove(StrPathName.Length - 4, 4);
           StrFileName = Path.GetFileName(strDWGName);
           StrSaveName = StrPathName + "\\" + "New-" + StrFileName;
           MessageBox.Show(StrSaveName);
           acDoc.Database.SaveAs(StrSaveName, true, DwgVersion.Current, acDoc.Database.SecurityParameters);
          
           //acDoc.Database.SaveAs(strDWGName, true, DwgVersion.Current, acDoc.Database.SecurityParameters);
       }
          public void OpenDrawing()
       {
           
           DocumentCollection acDocMgr = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager;
           //Document doc = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument;

           if (File.Exists(strFileName))
           {
               //acDocMgr.Open(strDwgName, false);
               DocumentCollectionExtension.Open(acDocMgr, strFileName);
           }
           else
           {
               acDocMgr.MdiActiveDocument.Editor.WriteMessage("File " + strFileName +
                                                              " does not exist.");
           }
       }
//---------------
       public static void AddCircle()//Sample code routine to add circle in model space
             {
              // Get the current document and database
             // Document acDoc = Application.DocumentManager.MdiActiveDocument;
              Document acDoc = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument;
              Database acCurDb = acDoc.Database;
              using (DocumentLock docLock = acDoc.LockDocument()) 
              {
              // Start a transaction
                  using (Transaction acTrans = acCurDb.TransactionManager.StartTransaction())
                  {
                      // Open the Block table for read
                      BlockTable acBlkTbl;
                      acBlkTbl = acTrans.GetObject(acCurDb.BlockTableId,
                                                      OpenMode.ForRead) as BlockTable;

                      // Open the Block table record Model space for write
                      BlockTableRecord acBlkTblRec;
                     //Here******************************************************************
                      acBlkTblRec = acTrans.GetObject(acBlkTbl[blockTableRecord.ModelSpace],
                                                      OpenMode.ForWrite) as BlockTableRecord;
                       //Heres
                      // Create a circle that is at 2,3 with a radius of 4.25
                      using (Circle acCirc = new Circle())
                      {
                          acCirc.Center = new Point3d(2, 3, 0);
                          acCirc.Radius = 4.25;

                          // Add the new object to the block table record and the transaction
                          acBlkTblRec.AppendEntity(acCirc);
                          acTrans.AddNewlyCreatedDBObject(acCirc, true);
                      }
                      // Save the new object to the database
                      acTrans.Commit();
                  }// for lockdocument
              }
          }    
//---------------
   }
}

Sorry no time right now, but real quick - Do you need to open them in the Editor?

Perhaps you should consider open as a side-Database via ReadDwgFile() Method. *not sure*

Cheers

Since the above code will make new drawings from my orginals I am in no hurry but

soon or later I would like to find out why my code can't overwrite existing drawings.

Thank you,