Make Simple Data Types Nullable
dim i as Nullable(Of Integer) If not i.HasValue then Console.WriteLine("i is a null value") End If i=100 If i.HasValue then Console.WriteLine("Nullable integer i = " & i.Value) End If
dim i as Nullable(Of Integer) If not i.HasValue then Console.WriteLine("i is a null value") End If i=100 If i.HasValue then Console.WriteLine("Nullable integer i = " & i.Value) End If