/**
* Return true if a supplier overlaps with another supplier
*/
private bool Overlap(SupplierViewModel supplierViewModelTryingToBook,
SupplierViewModel supplierViewModel)
{
TimeSpan start = supplierViewModel.DeliveryStart.TimeOfDay; // 10 PM
TimeSpan end = supplierViewModel.DeliveryEnd.TimeOfDay; // 2 AM
TimeSpan start1 = supplierViewModelTryingToBook.DeliveryStart.TimeOfDay;
TimeSpan end1 = supplierViewModelTryingToBook.DeliveryEnd.TimeOfDay;
return(TimeUtility.IsOverlapping(start, end, start1, end1));
}
