Copy sometimes works

GoDiagram (6 and previous)
1

Friday afternoon, my manager pointed out to me that Copy & Paste no longer work in my application.

Needless to say, I've been focused on that ever since. Ctrl-Drag & Drop still work for copying nodes. When I tried the serialization example from the User Manual, if found several classes that weren't serializable. The biggest problem was Pen. Eventually I got the binary serialization/deserialization to work.
Now Copy & Paste (calling GoView.EditCopy() and GoView.EditPaste() works sometimes and not others. I'm kind of stuck now. Any suggestions are appreciated.
2

More info. In place of calling EditPaste() I added the following code:

[code]
if (Clipboard.ContainsData(goView1.Document.DataFormat))
{
IDataObject c = Clipboard.GetDataObject();
System.Diagnostics.Debug.WriteLine("Data formats present");
foreach (string format in c.GetFormats())
{
System.Diagnostics.Debug.WriteLine(format);
}
// System.Drawing.Bitmap
// Bitmap
// Northwoods.Go.GoDocument
// System.String
// UnicodeText
// Text
objCopy = c.GetData(typeof(GoDocument));
[/CODE}
There's more code to do someothing with objCopy if its not null, but objCopy was null and no exceptions where logged to the trace listener.
Maybe I should just serialize the copies of my business objects, put them in the clipboard and deserialize them on the Paste side add them to the diagram the same way I do when I load them from the database.

Thanks for the help, in advance.
P.S. - Chomping at the bit a WPF version of GoDiagram!
3

Have you tried to do the binary serialization test on the whole document in the cases where it is now failing?

4

The binary serialization test worked on the whole document I was having problems with, but failed on another, more complex document. Once I fixed that problem, the copy & paste worked. Thanks.