PairOperandFunctionCalculateDatetime - метод

private static Nullable<DateTime> CalculateDatetime(
	SingleValueProperty leftProperty,
	PairOperandFunctionType function,
	SingleValueProperty rightProperty
)

Private Shared Function CalculateDatetime ( 
	leftProperty As SingleValueProperty,
	function As PairOperandFunctionType,
	rightProperty As SingleValueProperty
) As Nullable(Of DateTime)

Dim leftProperty As SingleValueProperty
Dim function As PairOperandFunctionType
Dim rightProperty As SingleValueProperty
Dim returnValue As Nullable(Of DateTime)

returnValue = PairOperandFunction.CalculateDatetime(leftProperty, 
	function, rightProperty)

private static function CalculateDatetime(
	leftProperty : SingleValueProperty, 
	function : PairOperandFunctionType, 
	rightProperty : SingleValueProperty
) : Nullable<DateTime>