Error "Operation is not valid due to the current state of the object"

[rtejada]

Hi all,

I am getting the "Operation is not valid due to the current state of the object" when doing the following

dim db as New Database (False, True)
db.ReadDwgFile(myfilename,FileOpenMode.OpenforReadAndAllShare,False,Nothing)
db.ResolveXrefs(True,False)
dim tm as Transaction = db.TransactionManager.StartTransaction()

the next line is the one that crashes

dim myDoc as Document = DocumentManager.GetDocument(db)


the line works with the working database, but I need it to work with an unopenned drawing. Is it possible?

Thanks in advance.

Raul

[Anonymous]

It's my understanding that opening a drawing in the background via ReadDwgFile only opens the drawing's database and doesn't create a document object. In order to access a document you need to open it first.

I would consider whether you really need to open the document into the document collection, and if you do i would open it and set the window.visible property to false.

{code}
Dim doc As Document = Application.DocumentManager.Open(mydrawingfilename, True, "")
doc.Window.Visible = False
{code}

-Mark P.

[Anonymous]

A Database that's not open in the editor has no associated Document.

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wrote in message news:[email protected]...
Hi all,

I am getting the "Operation is not valid due to the current state of the
object" when doing the following

dim db as New Database (False, True)
db.ReadDwgFile(myfilename,FileOpenMode.OpenforReadAndAllShare,False,Nothing)
db.ResolveXrefs(True,False)
dim tm as Transaction = db.TransactionManager.StartTransaction()

the next line is the one that crashes

dim myDoc as Document = DocumentManager.GetDocument(db)


the line works with the working database, but I need it to work with an
unopenned drawing. Is it possible?

Thanks in advance.

Raul

[rtejada]

Thanks Mark for the visible trick and thanks Tony, I will look into a "open in the editor" sample, may be more efficient.