Code
出现错误的源代码是：
        public virtual bool AddNewMonthly(PlanManagementDataSet.UnitTargetDataTable ForAddTo)
        {
            ConnectionState previousConnectionState = this.Connection.State;
            bool ReturnValue = true;

            try
            {
                if (((this.Connection.State & ConnectionState.Open) != ConnectionState.Open))
                    this.Connection.Open();
                //this.Transaction = this.Connection.BeginTransaction();

                foreach (PlanManagementDataSet.UnitTargetRow NewRow in ForAddTo.Rows)
                {
                    this.AndRow(NewRow.UnitID, NewRow.wbxssr_qnjh, NewRow.wbxssr_bysj, NewRow.wbxssr_bqzlj,
                        NewRow.wblr_qnjh, NewRow.wblr_bysj, NewRow.wblr_bqzlj,
                        NewRow.nbjssr_qnjh, NewRow.nbjssr_bysj, NewRow.nbjssr_bqzlj,
                        NewRow.nblr_qnjh, NewRow.nblr_bysj, NewRow.nblr_bqzlj,
                        NewRow.spcz_qnjh, NewRow.spcz_bysj, NewRow.spcz_bqzlj,
                        NewRow.spcl_bysj, NewRow.spcl_bqzlj, NewRow.bbny, NewRow.Periodicity, NewRow.Quarter);
                }
                //this.Transaction.Commit();
            }
            catch (System.Exception ex)
            {
                //this.Transaction.Rollback();
                PlanManagement.Common.LogError.LogErrToFile(ex);
                ReturnValue = false;
            }
            finally
            {
                //this.Transaction = null;
                if ((previousConnectionState == ConnectionState.Closed))
                    this.Connection.Close();
            }

            return ReturnValue;
        }

Code
        private void tbSave_Click(object sender, EventArgs e)
        {
            PlanManagementDataSet.UnitTargetDataTable Unit = new PlanManagementDataSet.UnitTargetDataTable();
            Unit =(PlanManagementDataSet.UnitTargetDataTable)planManagementDataSet.UnitTarget.Copy();
            
            try
            {
                this.unitTargetTableAdapter.AddNewMonthly(Unit);
                MessageBox.Show("保存数据完成！","计划管理",MessageBoxButtons.OK,MessageBoxIcon.Information );
            }
            catch (System.Exception ex)
            {
                System.Windows.Forms.MessageBox.Show(ex.Message);
            }

        }