//Starts the import of data when import is clicked
public void InitializeImport(string masterDataFilepath, string routeNumberFilepath)
{
CSVImport csvImport = new CSVImport();
//only import from excel file if database is empty and there are excel files to import
if (masterDataFilepath != null || routeNumberFilepath != null)
{
//Import data from excel files
csvImport.ImportContractors(masterDataFilepath);
csvImport.ImportRouteNumbers();
csvImport.ImportOffers(routeNumberFilepath);
}
//Import data from database
contractorList = csvImport.SendContractorListToListContainer();
routeNumberList = csvImport.SendRouteNumberListToListContainer();
ListContainer listContainer = ListContainer.GetInstance();
listContainer.GetLists(routeNumberList, contractorList);
}