As title says, is there equivalent to AbstractTableModel in c#, or is there another, better, solution for creating table model in c#?
After working with Java Swing and C# WPF and SilverLight, IMHO there is no equivalent of AbstractTableModel in .Net. You simply set the ItemsSource property and use binding to map columms to properties. You can use PagedCollectionView to have some features like sorting and grouping, but the model still is a list of objects, so you have flexibility to pass any kind of collection of objects to the table.
Why do you want to use AbstractTableModel in C#, wich feature do you want to use or implement?