linq多条件查询

public IList<AtAGlanceDetail> GetAtAGlanceReportByCondition(int? supplierId, string container, DateTime? ETA, string FOBPoint, string HBLNum, DateTime? motherVesselETD, string voyage) 
{ 
var data = GetAll().Where(c => c.SupplierId == supplierId && c.Container == container && c.ETA == ETA && c.FOBPoint == FOBPoint && c.HBLNum == HBLNum && c.MotherVesselETD == motherVesselETD && c.Voyage == voyage).AsQueryable(); 
return data.ToList();
}

dataSouce.Where(c => c.SupplierId == supplierId(条件参数) && c.Container == container && c.ETA == ETA ) //这种格式的写法