Captain's Log, Stardate NULL

Today I discovered a need for a data-bound DateTimePicker to support the display and input of NULL values. I remembered reading a blog a short while ago about someone else who had already developed a solution.

 

Google helpfully pointed me to Alexander Shirshov's original solution that I had read before. However I also spotted Claudio Grazioli's solution on Code Project which apparently correct some bugs in Alexander's implementation. I downloaded the source, gave it a try and it works very neatly.

 

If anyone would like the source for the NullableDateTimePicker in VB.NET instead of C# just leave a comment.