You may have been hearing a bit about nullable types in Whidbey (a feature in both VB and C#) but you should read this post by Paul to get an explanation of what they are, how they work and why they are useful… all from a VB point of view!

**The Truth about Nullable Types and VB...** ** **
  _There's been a little confusion about how VB's going to handle nullable types in VB 2005, so let me try and amplify a little bit on the _ [ _entry on the VB team blog_ ](https://blogs.msdn.com/vbteam/archive/2004/05/28/143813.aspx) _._



  ** _What are nullable types?_ **



  _One of the primary differences between value types such as Integer or structures and reference types such as Form or String is that reference types support a null value.... ([continued in the full post](https://www.panopticoncentral.net/archive/2004/06/04/1180.aspx))_