topic Re: eLockViolation error code creating a new layer and make it work from push bu in .NET Forum

eLockViolation error code creating a new layer and make it work from push button

Anonymous — Mon, 07 Nov 2011 08:01:19 GMT

Hello,

I wrote some code in VB .NET 2010 getting started from Kean Walmsley project to create a new layer. I did it working directly from code and not using a command line as he did.

http://through-the-interface.typepad.com/through_the_interface/2010/01/creating-an-autocad-layer-using-net.html

The problem is that the same code works if I call it directly inside the application code, but doesn't if I throw it from a push button.

I get the eLockViolation error code.

I don't understand why it doesn't works and how cold I solve the problem.

Does anyone have any suggestion?

Thank you

Corra

Re: eLockViolation error code creating a new layer and make it work from push bu

Anonymous — Mon, 07 Nov 2011 09:26:38 GMT

I think you must use DocumentLock class before you make any changes to database

Like this

using (DocumentLock docLock = doc.LockDocument())

{

... code where you make changes to db

}

Re: eLockViolation error code creating a new layer and make it work from push bu

Anonymous — Mon, 07 Nov 2011 10:46:35 GMT

OK, it works!

It's not completely clear why there are some cases it works also without lockDocument...

Il'' think about it.

Thank you very much!

Corra

Re: eLockViolation error code creating a new layer and make it work from push bu

kerry_w_brown — Mon, 07 Nov 2011 12:09:06 GMT

You'll find that routines run from the 'Application' requires document locking ... modeless dialog, palettes, COM server and commands registered using the CommandMethod attribute 'CommandFlags.Session' run in Application mode.

Re: eLockViolation error code creating a new layer and make it work from push bu

xaotix — Fri, 30 Apr 2021 18:02:33 GMT

solved my problem! thx!