Turn on/off Viewport Error

Anonymous — Tue, 14 May 2013 03:48:09 GMT

Hi All,

Please let me know this error:

When I try the code:

Public Sub HVP()
        Dim doc As Document = Application.DocumentManager.MdiActiveDocument
        Dim ed As Editor = doc.Editor
        Dim db As Database = HostApplicationServices.WorkingDatabase
        Using DocLock As DocumentLock = Application.DocumentManager.MdiActiveDocument.LockDocument()
            Using tr As Transaction = db.TransactionManager.StartTransaction()
                Try
                    Dim layoutdict As DBDictionary = TryCast(tr.GetObject(db.LayoutDictionaryId, OpenMode.ForRead, False, True), DBDictionary)
                    For Each entry As DBDictionaryEntry In layoutdict
                        If entry.Key <> "Model" Then
                            Dim lay As Layout = TryCast(tr.GetObject(entry.Value, OpenMode.ForRead, False, True), Layout)
                            For Each vpid As ObjectId In lay.GetViewports()
                                Dim vp As Autodesk.AutoCAD.DatabaseServices.Viewport = TryCast(tr.GetObject(vpid, OpenMode.ForWrite, True, True), Autodesk.AutoCAD.DatabaseServices.Viewport)

                                    vp.On = False

                            Next
                        End If
                    Next
                Catch ex As Exception
                    MsgBox(ex.Message & ex.StackTrace & ex.ErrorStatus)
                End Try
                tr.Commit()
            End Using
        End Using

Thanks for any help.

Re: Turn on/off Viewport Error

hgasty1001 — Tue, 14 May 2013 04:43:20 GMT

Hi,

Do those TryCast really return something?

Gaston Nunez

Re: Turn on/off Viewport Error

Anonymous — Tue, 14 May 2013 08:10:54 GMT

I try to use "DirectCast" but the result will be the same.

Re: Turn on/off Viewport Error

Anonymous — Thu, 16 May 2013 05:23:11 GMT

I there any way to turn off/on all objects in each layout ?

Thanks for any help.

Re: Turn on/off Viewport Error

ditran7577 — Fri, 17 May 2013 11:18:30 GMT

It OK if we turn on all viewport (vp.on=true). What happpen?

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Turn on/off Viewport Error

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