topic Re: ObjectId OpenAs in .NET Forum

ObjectId OpenAs

David_Prontnicki — Mon, 19 Sep 2022 19:51:55 GMT

I have an older method I wrote and it is still working in other programs written prior. But when creating a new one, I can not use the same method anymore as it tells me "OpenAs is not a member of ObjectId". Has this changed or am I missing something?

Public Sub BurstAllBlocks() Dim curDb As Database = Active.Database Try Using tr As Transaction = curDb.TransactionManager.StartTransaction() Dim layoutDbDictionary As DBDictionary = tr.GetObject(curDb.LayoutDictionaryId, OpenMode.ForRead) For Each layoutDbDictionaryEntry As DBDictionaryEntry In layoutDbDictionary Dim layout As Layout = CType(layoutDbDictionaryEntry.Value.GetObject(OpenMode.ForRead), Layout) Dim blkTblRec As BlockTableRecord = tr.GetObject(layout.BlockTableRecordId, OpenMode.ForWrite) Dim rxClass = RXObject.GetClass(GetType(BlockReference)) Dim blocks = blkTblRec.Cast(Of ObjectId).Where(Function(ent) ent.ObjectClass.IsDerivedFrom(rxClass)) _ .Select(Function(ent) ent.OpenAs(Of BlockReference)(tr, OpenMode.ForRead)) For Each block As BlockReference In blocks BurstBlocks(tr, block, blkTblRec) Next Next tr.Commit() End Using Catch ex As Exception MessageServices.DisplayError("Error Bursting Blocks!", "Click OK to skip this section and continue.", ex) End Try End Sub

Re: ObjectId OpenAs

_gile — Mon, 19 Sep 2022 20:30:36 GMT

Hi,

As far as I know the ObjectId type never had such OpenAs method (see ObjectId methods).

This is certainly an extension method which was part of your "other programs written prior".

Re: ObjectId OpenAs

David_Prontnicki — Tue, 20 Sep 2022 14:13:44 GMT

@_gile

I forgot about an extension I was using to make that happen. If anyone else is interested here it is:

Imports System.Runtime.CompilerServices Imports Autodesk.AutoCAD.DatabaseServices Module DBObjectExtensions <Extension()> Public Function OpenAs(Of T As DBObject)(ByVal objectId As ObjectId, tr As Transaction, openMode As OpenMode) Return DirectCast(tr.GetObject(objectId, openMode), T) End Function End Module