Are you trying to clone the property or perhaps the entire block definition. Either way, I'd start by loading the source drawing into a temp cad database. Then finding the block definition.
''' <summary>
''' Finds / inserts a block definition from file.
''' </summary>
''' <param name="strSourceBlockName">Name of inserted block</param>
''' <param name="strSourceBlockPath">Name of block's dwg file</param>
''' <returns>BlockTableRecord of the found/inserted block</returns>
''' <remarks>If block is not found, then an error is thrown, and nothing is returned.</remarks>
Public Function GetBlock(ByVal strSourceBlockName As String, ByVal strSourceBlockPath As String, ByRef db As Database, ByRef mTrans As Transaction) As BlockTableRecord
Dim oid As ObjectId = Nothing
Dim btr As BlockTableRecord = Nothing
Dim bt As BlockTable = db.BlockTableId.GetObject(OpenMode.ForRead)
If bt.Has(strSourceBlockName) Then
btr = bt(strSourceBlockName).GetObject(OpenMode.ForRead)
Else
Using trans As Transaction = mTrans.TransactionManager.StartTransaction
Using sourcedb As Database = New Database(False, False)
Try
sourcedb.ReadDwgFile(strSourceBlockPath, IO.FileShare.Read, True, "")
oid = db.Insert(strSourceBlockPath, sourcedb, True)
btr = trans.GetObject(oid, OpenMode.ForWrite, True, True)
btr.Name = strSourceBlockName
trans.Commit()
Catch ex As System.Exception
Throw New System.Exception("Block file not found " & strSourceBlockPath & ": ", ex)
End Try
End Using
End Using
End If
Return btr
End Function Once you have the source database loaded get the block or block reference and start working on it.
jvj
