Silverlight
Level: Beginner In working with the Silverlight 4 DataGrid control, I found that documentation and online examples tend to focus on validation either at the cell level, or row level. However, there could be a case where validation is required after all rows have been entered, and comparisons between rows may need to be made. One example I can think of is the case where a list of products, including SKU information, is entered by the user. The SKU code is not derived automatically, but must be unique ......