How do I set a nullable DateTime to null in VB.NET?

Question

I am trying to set up a date range filter on my UI, with checkboxes to say whether a DateTimePicker\'s value should be used, e.g.

Dim fromDate As DateTime? =         


        

Answer 1

In addition to @Damien_The_Unbeliever's fine answer, using New DateTime? also works:

Dim fromDate As DateTime? = If(fromDatePicker.Checked, _
                               fromDatePicker.Value, _
                               New DateTime?)

You might find that it looks a bit counter intuitive, why perhaps the CType(Nothing, DateTime?) is preferable.