What is the best way to program for a null table. I have a C# program that calls a class to fill a DataTable named DS based on a condition. It is possible the datatable will return null from the call and the program crashes with "Object Not Set to an Instance of An Object". What is the best way to handle this conidtion? Should I add a dummy row to the table if the condition is not before returning? or is there a command that will set this object object a null instance?