Help me please!

В Б

Hello! uchusU write in VB.NET and first way I have a problem.
Learning language examples for AutoCAD.
One example works:

Imports Autodesk.AutoCAD.ApplicationServices  

Imports Autodesk.AutoCAD.Runtime  

 _    

Public Sub SaveActiveDrawing()    

  Dim acDoc As Document = Application.DocumentManager.MdiActiveDocument   

  Dim strDWGName As String = acDoc.Name   

  Dim obj As Object = Application.GetSystemVariable("DWGTITLED")  

  '' Check to see if the drawing has been named   

  If System.Convert.ToInt16(obj) = 0 Then 

      '' If the drawing is using a default name (Drawing1, Drawing2, etc) 

      '' then provide a new name  

      strDWGName = "c:\MyDrawing.dwg" 

  End If  

  '' Save the active drawing  

  acDoc.Database.SaveAs(strDWGName, True, DwgVersion.Current, _   

                        acDoc.Database.SecurityParameters)    

End Sub


the second example does not work:


    

Imports System.IOImports Autodesk.AutoCAD.ApplicationServices     

Imports Autodesk.AutoCAD.DatabaseServices     

Imports Autodesk.AutoCAD.Runtime      

 _        

Public Sub OpenDrawing()      

  Dim strFileName As String = "C:\campus.dwg"     

  Dim acDocMgr As DocumentCollection = Application.DocumentManager        

  If (File.Exists(strFileName)) Then      

      acDocMgr.Open(strFileName, False)       

  Else        

      acDocMgr.MdiActiveDocument.Editor.WriteMessage("File " & strFileName & _        

                                                     " does not exist.")      

  End If      

End Sub

I changed the import libraries on BricsCad.  

Why does not the second example. What is wrong? How to do this right?

В Б

And my bricscad pro v14.1.11:32511