C# WebControls.ListViewDeleteEventArgs類代碼示例

 protected void Lv_ItemDeleting(object sender, ListViewDeleteEventArgs e)
 {
     var id = Convert.ToInt32(Lv.DataKeys[e.ItemIndex].Value);
     var person = Db.Persons.SingleOrDefault(p => p.Id == id);
     Db.Persons.Remove(person);
     Init();
 }

        /// <summary>
        /// A person is deleted from the list view. 
        /// </summary>
        /// <param name="sender">The sender of the events</param>
        /// <param name="e">The args of the event</param>
        protected void PersonDeleting(object sender, ListViewDeleteEventArgs e)
        {
            ListViewItem myItem = ResultsView.Items[e.ItemIndex];

            var labelId = (Label) myItem.FindControl("LabelID");

            this.Verified(
                () => new PersonsDAO().ArchivePerson(labelId.Text.ToInt()),
                ErrorLabel);

            this.Verified(SearchPersons, ErrorLabel);
        }

        /// <summary>
        /// Archive the selected institution. 
        /// </summary>
        /// <param name="sender">The sender of the events</param>
        /// <param name="e">The args of the event</param>
        protected void InstitutionArchiving(object sender, ListViewDeleteEventArgs e)
        {
            Extensions.SqlOperation operation = () =>
            {
                ListViewItem myItem = ResultsView.Items[e.ItemIndex];
                var labelId = (Label)myItem.FindControl("LabelID");
                new InstitutionsDAO().ArchiveInstitution(labelId.Text.ToInt());

                SearchButton_Click(sender, e); //Refresh the page
            };

            this.Verified(operation, ErrorLabel);
        }

 protected void lvUserRole_ItemDeleting(object sender, ListViewDeleteEventArgs e)
 {
     //取消請求執行自定義的方法
     e.Cancel = true;
     //當前角色id
     Int16 roleId = Convert.ToInt16(Session["role_id"]);
     //檢測是否有權限
     if (roleId < 0 || roleId > 2)
     {
         throw new Exception("您沒有刪除記錄權限!");
     }
     //根據id執行刪除數據
     e.Cancel = false;
 }

        /// <summary>
        /// A contract is deleted from the list view. 
        /// </summary>
        /// <param name="sender">The sender of the events</param>
        /// <param name="e">The args of the event</param>
        protected void ContractDeleting(object sender, ListViewDeleteEventArgs e)
        {
            Extensions.SqlOperation operation = () =>
            {
                ListViewItem myItem = ResultsView.Items[e.ItemIndex];

                var labelId = myItem.FindControl("LabelID") as Label;

                new ContractsDAO().ArchiveContract(labelId.Text.ToInt());

                Search();
            };

            this.Verified(operation, ErrorLabel);
        }

        protected void lvLoanControl_ItemDeleting(object sender, ListViewDeleteEventArgs e)
        {
            String ids = "";
            Label lbl = (lvLoanControl.Items[e.ItemIndex].FindControl("lbID")) as Label;
            if (lbl != null)
                ids = lbl.Text;

            if (!String.IsNullOrEmpty(ids))
            {
                NewLoanControlRepository facade = new NewLoanControlRepository();
                var itm = facade.GetById(Int16.Parse(ids));
                if (itm != null)
                {
                    facade.Delete(itm);
                    facade.Commit();
                    LoadDataTolvLoanControl();
                }

            }
        }

        protected void lvPayees_ItemDeleting(object sender, ListViewDeleteEventArgs e)
        {
            var dataKey = lvPayees.DataKeys[e.ItemIndex];
            if (dataKey == null || dataKey.Values == null)
            {
                return;
            }

            var payeeId = Guid.Parse(dataKey.Values["ID"].ToString());

            var isPayeeCanBeDeleted = _presenter.CheckIfPayeeCanBeDeleted(payeeId);
            if (isPayeeCanBeDeleted)
            {
                _presenter.DeletePayee(payeeId);
                _presenter.BindPayees();
                //SetPageMessage("Penerima uang berhasil dihapus");
            }
            else
            {
                //SetPageMessage("Penerima uang tidak bisa dihapus karena mempunyai transaksi");
            }
        }

        protected void lvRateExchange_ItemDeleting(object sender, ListViewDeleteEventArgs e)
        {
            String ids = "";
            Label lbl = (lvRateExchange.Items[e.ItemIndex].FindControl("lbID")) as Label;
            if (lbl != null)
                ids = lbl.Text;

            if (!String.IsNullOrEmpty(ids))
            {
                StoreProRepository storeFacade = new StoreProRepository();
                ExchangeRatesRepository facade = new ExchangeRatesRepository();
                var itm = facade.GetById(Int16.Parse(ids));
                if (itm != null)
                {
                    storeFacade.StoreProcessor().B_ExchangeRate_history_process(itm.Currency, itm.Rate, this.UserId, 3);
                    facade.Delete(itm);
                    facade.Commit();
                    LoadDataTolvRateExchange();
                }

            }
        }

        protected void lvLoanInterestedRate_ItemDeleting(object sender, ListViewDeleteEventArgs e)
        {
            String ids = "";
            Label lbl = (lvLoanInterestedRate.Items[e.ItemIndex].FindControl("lbID")) as Label;
            if (lbl != null)
                ids = lbl.Text;

            if (!String.IsNullOrEmpty(ids))
            {
                StoreProRepository storeFacade = new StoreProRepository();
                NewLoanInterestedKeyRepository facade = new NewLoanInterestedKeyRepository();
                var itm = facade.GetById(Int16.Parse(ids));
                if (itm != null)
                {
                    storeFacade.StoreProcessor().B_LoanInterested_Key_history_process(itm.MonthLoanRateNo, itm.VND_InterestRate, itm.USD_InterestRate, this.UserId, 3);
                    facade.Delete(itm);
                    facade.Commit();
                    LoadDataTolvLoanInterestedRate();
                }

            }
        }

    protected void ListView1_ItemDeleting(object sender, ListViewDeleteEventArgs e)
    {
        int id = (int)e.Keys[0];

        using (var db = drvvv.drvvvSettings.GetDataContextInstance())
        {
            var cCategories = db.Categories.Where(x => x.ID == id).SingleOrDefault();
            foreach (var y in db.MailingLists.Where(x => x.CategoryID == id))
            {
                y.CategoryID = null;
            }
            db.SubmitChanges();

            if (!string.IsNullOrEmpty(cCategories.Image))
            {
                if (!drvvv.GetFile.DeleteFile(cCategories.Image))
                {
                    RegisterStartupScript("alert", "<script language='javascript'> { alert('The picture is not deleted');}</script>");
                }
            }
        }
    }

 //通過LINQ技術刪除圖片
 protected void lvPhoto_ItemDeleting(object sender, ListViewDeleteEventArgs e)
 {
     //刪除圖片文件
     LinkButton lkb = (LinkButton)lvPhoto.Items[e.ItemIndex].FindControl("lkbImg");
     FileInfo fi = new FileInfo(Server.MapPath("UpSmall/" + lkb.CommandArgument.ToString()));
     if (fi.Exists)
     {
         fi.Delete();
     }
     FileInfo fi2 = new FileInfo(Server.MapPath("UpFile/" + lkb.CommandArgument.ToString()));
     if (fi2.Exists)
     {
         fi2.Delete();
     }
     //獲取ListView控件中所要刪除的數據索引值
     int DataKey = Int32.Parse(lvPhoto.DataKeys[e.ItemIndex].Value.ToString());
     //通過LINQ to SQL刪除數據庫記錄
     Photo p = lqc.Photo.SingleOrDefault(itm => itm.ID == DataKey);
     lqc.Photo.DeleteOnSubmit(p);//執行刪除操作
     lqc.SubmitChanges();//提交刪除動作
     ScriptManager.RegisterStartupScript(this, GetType(), "", "alert('刪除成功！');", true);
     BindListView();//重新綁定ListView控件
 }

    protected void ListView1_ItemDeleting(object sender, ListViewDeleteEventArgs e)
    {
        int id = (int)e.Keys[0];

        using (var db = drvvv.drvvvSettings.GetDataContextInstance())
        {
            var cBanners = db.Banners.Where(x => x.ID == id).SingleOrDefault();
            if (cBanners != null)
            {
                if (!drvvv.GetFile.DeleteFile(cBanners.LinkFile))
                {
                    e.Cancel = true; // מבטל מחיקה
                    Label1.Text = "You can not delete now";
                }
            }
            else
            {
                // התמונה לא קיימת במסד
                e.Cancel = true; // מבטל מחיקה
                Label1.Text = "File not found";
            }
        }
    }

 protected void LvHomePageItems_ItemDeleting(object sender, ListViewDeleteEventArgs e)
 {
     if (!commonBAL.isUserAuthorisedForPageFunc(LoggedInUser.UserId, thisPageName, "delete"))
     {
         LoggedIn master = (LoggedIn)this.Master;
         master.ShowMessage("You are not authorised to perform this function. Please contact system administrator.", false);
         e.Cancel = true;
         return;
     }
  
 }

		protected override void OnItemDeleting (ListViewDeleteEventArgs e)
		{
			RecordEvent ("Enter");
			base.OnItemDeleting (e);
			RecordEvent ("Leave");
		}

 /// <summary>
 /// 執行刪除數據並處理相關數據一致性
 /// </summary>
 /// <param name="e">傳入的帶有數據的事件參數</param>
 /// <returns></returns>
 private bool DeleteData(ListViewDeleteEventArgs e)
 {
     //實例化數據適配器
     using (var da = new v_material_inTableAdapter())
     //取得數據庫連接
     using (var conn = da.Connection)
     {
         //打開數據庫連接
         conn.Open();
         //事務
         using (var tran = conn.BeginTransaction())
         {
             //設置事務
             da.Transaction = tran;
             try
             {
                 //當前入倉單號
                 string billNum = e.Keys[0].ToString();
                 //當前行號
                 byte rowId = Convert.ToByte(e.Keys[1]);
                 //取得該條入倉單清單記錄
                 var tab = da.GetDataByBillNumAndRowId(billNum, rowId);
                 //檢測是否存在數據
                 if (tab.Rows.Count <= 0)
                 {
                     throw new Exception(string.Format("當前單據:\n單號:{0}\n行號:{1}\n已經被其他用戶刪除!", billNum, rowId));
                 }
                 //單據內容、原料結存適配器
                 using (var daContent = new t_material_in_contentTableAdapter())
                 using (var daBalance = new t_material_balanceTableAdapter())
                 {
                     //設置連接對象
                     daContent.Connection = daBalance.Connection = tran.Connection;
                     //設置事務
                     daContent.Transaction = daBalance.Transaction = tran;
                     //遍曆行執行刪除各行的結存記錄
                     foreach (DataSetMaterialIn.v_material_inRow row in tab.Rows)
                     {
                         //執行扣減結存
                         if (!ydOperateMaterial.DecreaseMaterialBalance(
                             daBalance,
                             BillType.In,
                             row.supplier_name,
                             row.material_name,
                             row.price,
                             row.qty
                         ))
                         {
                             return false;
                         }
                     }
                     //根據入倉單號和行號刪除入倉記錄
                     if (daContent.Delete(billNum, rowId) <= 0)
                     {
                         throw new Exception("根據單號刪除內容記錄失敗！");
                     }
                     //檢測當前入倉記錄內容行數
                     int? iCount = (int?)daContent.CountByBillNum(billNum);
                     if (iCount.HasValue && iCount.Value <= 0)
                     {
                         //表頭適配器
                         using (var daHead = new t_material_in_headTableAdapter())
                         {
                             //刪除表頭
                             if (daHead.Delete(billNum) <= 0)
                             {
                                 throw new Exception("根據單號刪除表頭記錄失敗！");
                             }
                         }
                     }
                 }
                 //提交事務
                 tran.Commit();
                 //返回成功
                 return true;
             }
             catch (Exception ex)
             {
                 //回滾事務
                 tran.Rollback();
                 //拋出錯誤
                 throw new Exception("刪除入倉單記錄出現錯誤:\n" + ex.Message);
             }
         }
     }
 }