topic Re: Update Viewport with database is not working. in .NET Forum

Update Viewport with database is not working.

cstotal_Autodesk — Thu, 27 Jul 2023 02:14:08 GMT

I have no idea why after I work with vb.net with database, zoom of current view is changing.

so I want zoom extent the document without open document in editor, only database.readdwgfile

I found some code on .net forum but I guess it doesn't work.

Dim originalDB As Database = HostApplicationServices.WorkingDatabase Using AcadDB As New Database(False, True) AcadDB.ReadDwgFile(OldDwgFilePath, FileOpenMode.OpenForReadAndAllShare, False, Nothing) HostApplicationServices.WorkingDatabase = AcadDB If AcadDB.TileMode = True Then 'Model Using Trans As Transaction = AcadDB.TransactionManager.StartTransaction Dim vpt As ViewportTable = Trans.GetObject(AcadDB.ViewportTableId, OpenMode.ForRead) Dim vptr As ViewportTableRecord = Trans.GetObject(AcadDB.CurrentViewportTableRecordId, OpenMode.ForWrite) vptr.CenterPoint = New Point2d(1000, 1000) vptr.Height = 2000 vptr.Width = 2000 AcadDB.UpdateExt(True) End Using End If ZoomExtents_DB_2(AcadDB) AcadDB.SaveAs(NewDwgFilePath, DwgVersion.Current) HostApplicationServices.WorkingDatabase = originalDB End Using

what actual code I used, include calculate for zoom extent but I changed it for fixed number for testing view is changed so I changed it as real numbers and it doesn't work(also not working with calculated numbers obviously)

How can I change current views zoom without open in editor?

Re: Update Viewport with database is not working.

cstotal_Autodesk — Mon, 31 Jul 2023 01:36:25 GMT

I just found if I saveas database when

HostApplicationServices.WorkingDatabase = dwgfile Database

It changes Zoom as Auto. so before saveas

changed HostApplicationServices.WorkingDatabase to origin database

Re: Update Viewport with database is not working.

kerry_w_brown — Mon, 31 Jul 2023 03:38:41 GMT

Did you try committing the transaction ?

Re: Update Viewport with database is not working.

cstotal_Autodesk — Mon, 31 Jul 2023 03:59:52 GMT

oh Yes. as I wrote on reply myself, it was solved. thank for replying.

Re: Update Viewport with database is not working.

JamesMaeding — Tue, 30 Apr 2024 22:46:04 GMT

I just rediscovered this after 2 hours of troubleshooting.

In my experience, only set HostApplicationServices.WorkingDatabase to side database while touching system vars using AcAp.SetSystemVariable() method.

I am not dealing with viewports though, just modelspace.