Need C# snippet help - List difference

[nitin2003]

Hi,

I am trying to find the difference between 2 lists and add the difference into 3rd list.

I wrote this 1 liner c# snippet :

project.Lists["List3"] = project.Lists["List2"].Except(project.Lists["List1"]).ToList();

But this is throwing an exception.

"Property or indexer 'ZennoLab.InterfacesLibrary.ProjectModel.Collections.ILists.this[string]' cannot be assigned to -- it is read only". [Row: 1; Column: 1]"

It is not letting me write to the List3. How can I make it save the difference in third list? Can someone please help?

Thanks
Nitin

 

[rostonix]

http://www.zennoexperts.com/downloads/blacklist.xmlz