/// <summary>
        /// DeleteAllDirect
        /// </summary>
        /// <param name="materialId">materialId</param>
        /// <param name="companyId">companyId</param>
        public void DeleteAllDirect(int materialId, int companyId)
        {
            // Delete exceptions
            MaterialsCostHistoryExceptions materialsCostHistoryExceptions = new MaterialsCostHistoryExceptions(null);
            materialsCostHistoryExceptions.DeleteAllDirect(materialId, companyId);

            // Delete costs
            MaterialsCostHistoryGateway materialsCostHistoryGateway = new MaterialsCostHistoryGateway(null);
            materialsCostHistoryGateway.DeleteAll(materialId, companyId);
        }
        /// <summary>
        /// Save all materials to database (direct)
        /// </summary>
        /// <param name="companyId">companyId</param>
        public void Save(int companyId, int materialId)
        {
            MaterialsInformationTDS costHistoryExceptionsInformationChanges = (MaterialsInformationTDS)Data.GetChanges();

            if (costHistoryExceptionsInformationChanges.CostHistoryExceptionsInformation.Rows.Count > 0)
            {
                MaterialsInformationCostHistoryExceptionsInformationGateway materialsInformationCostHistoryExceptionsInformationGateway = new MaterialsInformationCostHistoryExceptionsInformationGateway(costHistoryExceptionsInformationChanges);

                foreach (MaterialsInformationTDS.CostHistoryExceptionsInformationRow row in (MaterialsInformationTDS.CostHistoryExceptionsInformationDataTable)costHistoryExceptionsInformationChanges.CostHistoryExceptionsInformation)
                {
                    // Insert new costs exceptions
                    if ((!row.Deleted) && (!row.InDatabase))
                    {
                        MaterialsCostHistoryExceptions materialsCostHistoryExceptions = new MaterialsCostHistoryExceptions(null);
                        materialsCostHistoryExceptions.InsertDirect(row.CostID, row.RefID, materialId, row.Work_, row.Function_, row.UnitOfMeasurement, row.CostCad, row.CostUsd, row.Deleted, row.COMPANY_ID);
                    }

                    // Update costs exceptions
                    if ((!row.Deleted) && (row.InDatabase))
                    {
                        int costId = row.CostID;
                        int refId = row.RefID;
                        bool originalDeleted = row.Deleted;
                        int originalCompanyId = companyId;

                        // original values
                        string originalWork = materialsInformationCostHistoryExceptionsInformationGateway.GetWork_Original(costId, refId);
                        string originalFunction = materialsInformationCostHistoryExceptionsInformationGateway.GetFunction_Original(costId, refId);
                        string originalUnitOfMeasurement = materialsInformationCostHistoryExceptionsInformationGateway.GetUnitOfMeasurementOriginal(costId, refId);
                        decimal originalCostCad = materialsInformationCostHistoryExceptionsInformationGateway.GetCostCadOriginal(costId, refId);
                        decimal originalCostUsd = materialsInformationCostHistoryExceptionsInformationGateway.GetCostUsdOriginal(costId, refId);

                        // new values
                        string newWork = materialsInformationCostHistoryExceptionsInformationGateway.GetWork_Original(costId, refId);
                        string newFunction = materialsInformationCostHistoryExceptionsInformationGateway.GetFunction_Original(costId, refId);
                        string newUnitOfMeasurement = materialsInformationCostHistoryExceptionsInformationGateway.GetUnitOfMeasurement(costId, refId);
                        decimal newCostCad = materialsInformationCostHistoryExceptionsInformationGateway.GetCostCad(costId, refId);
                        decimal newCostUsd = materialsInformationCostHistoryExceptionsInformationGateway.GetCostUsd(costId, refId);

                        MaterialsCostHistoryExceptions materialsCostHistoryExceptions = new MaterialsCostHistoryExceptions(null);
                        materialsCostHistoryExceptions.UpdateDirect(costId, refId, materialId, originalWork, originalFunction, originalUnitOfMeasurement, originalCostCad, originalCostUsd, originalDeleted, originalCompanyId, costId, refId, materialId, newWork, newFunction, newUnitOfMeasurement, newCostCad, newCostUsd, originalDeleted, originalCompanyId);
                    }

                    // Deleted costs exceptions
                    if ((row.Deleted) && (row.InDatabase))
                    {
                        MaterialsCostHistoryExceptions materialsCostHistoryExceptions = new MaterialsCostHistoryExceptions(null);
                        materialsCostHistoryExceptions.DeleteDirect(row.CostID, row.RefID, row.COMPANY_ID);
                    }
                }
            }
        }