Gets or sets the value of the field as a Boolean. Numbers and the TimeStamp and Date values give true when not zero, and a string is parsed. Returns a null reference (Nothing in Visual Basic) for a missing field; throws System.InvalidOperationException for the other types. Setting a null reference (Nothing in Visual Basic) makes the field a BSON a null reference (Nothing in Visual Basic).

'Declaration
 
Public Property AsBoolean As Nullable(Of Boolean)

public Nullable<bool> AsBoolean {get; set;}