Read/Write Protected Memory

[vince1327]

Hey Everyone,

Yet another question. With help from "jeff" i managed to get my code up and running. It's essentially a function that creates a new paperspace, however when i run it, it generates the new paperspace, but a few seconds laters it crashes with an error saying that i'm attempting to read/write protected memory. I'm new to AutoCAD development and this is driving me crazy. Any assistance would be hugely appreciated. Below is my code.

Thanks again

Vince

namespace CHPaperSpace
{
public class CHPaperSpace
{
[Autodesk.AutoCAD.Runtime.CommandMethod("CHPAPERSPACE")]

// This will be the function associated with my command
public void CHPAPERSPACECOMMAND()
{
int i = 1;

Document doc = Application.DocumentManager.MdiActiveDocument;
Editor ed = doc.Editor;
Database db = doc.Database;
Autodesk.AutoCAD.DatabaseServices.TransactionManager trm = db.TransactionManager;
using (DocumentLock acLckDoc = doc.LockDocument())


try
{
Transaction tr = trm.StartTransaction();
LayoutManager oLayoutManager = Autodesk.AutoCAD.DatabaseServices.LayoutManager.Current;

try
{
ObjectId oLayoutObjectId;
oLayoutObjectId = oLayoutManager.CreateLayout("CHPaperSpace" + i++);
Layout oLayout = (Layout)tr.GetObject(oLayoutObjectId, OpenMode.ForWrite);

oLayout.Initialize();
ed.Regen();
}

catch
{
tr.Commit();
acLckDoc.Dispose();
tr.Dispose();

}
}
catch{

}

}
}
}

[Alfred.NESWADBA · Accepted solution]

Hi,

first idea after 'flying over your code-snippet'

if your code does not have an error it does not dispose the transaction because you have the tr.Dispose it only within the catch.

And if you use the "using" for the documentlock ==> the .Dispose is done automatically.

HTH, - alfred -

[vince1327]

That was it, thanks very much for your help!

Cheers

Vince