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iBATIS.NET 学习笔记(八)

發布時間：2023/12/13 asp.net 17 豆豆

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在iBATIS.NET 學習筆記(五)中的DataGrid中加入刪除功能，刪除客戶信息。
修改Maps/Customers.xml,在statements標記中加入下面代碼：
<delete?id="DeleteCustomer"??parameterClass="string">
????????delete?from?Customers?where?CustomerID=#value#
????????</delete> parameterClass是指傳遞進來的參數類型，這里的CustomerID 是varchar類型，所以采用string。
修改后的Test1.aspx
<%@?Page?language="c#"?Codebehind="Test1.aspx.cs"?AutoEventWireup="false"?Inherits="IbatisNet.Example.Test1"?%>
<!DOCTYPE?HTML?PUBLIC?"-//W3C//DTD?HTML?4.0?Transitional//EN"?>
<HTML>
????<HEAD>
????????<title>Test1</title>
????????<meta?name="GENERATOR"?Content="Microsoft?Visual?Studio?.NET?7.1">
????????<meta?name="CODE_LANGUAGE"?Content="C#">
????????<meta?name="vs_defaultClientScript"?content="JavaScript">
????????<meta?name="vs_targetSchema"?content="http://schemas.microsoft.com/intellisense/ie5">
????</HEAD>
????<body>
????????<form?id="Form1"?method="post"?runat="server">
????????????<asp:DataGrid?id="dgList"?runat="server"?BorderColor="#E7E7FF"?BorderStyle="None"?BorderWidth="1px"
????????????????BackColor="White"?CellPadding="3"?GridLines="Horizontal"?AllowPaging="True"?AutoGenerateColumns="False"
????????????????DataKeyField="CustomerID">
????????????????<FooterStyle?ForeColor="#4A3C8C"?BackColor="#B5C7DE"></FooterStyle>
????????????????<SelectedItemStyle?Font-Bold="True"?ForeColor="#F7F7F7"?BackColor="#738A9C"></SelectedItemStyle>
????????????????<AlternatingItemStyle?BackColor="#F7F7F7"></AlternatingItemStyle>
????????????????<ItemStyle?ForeColor="#4A3C8C"?BackColor="#E7E7FF"></ItemStyle>
????????????????<HeaderStyle?Font-Bold="True"?ForeColor="#F7F7F7"?BackColor="#4A3C8C"></HeaderStyle>
????????????????<Columns>
????????????????????<asp:BoundColumn?DataField="CustomerID"?HeaderText="CustomerID"></asp:BoundColumn>
????????????????????<asp:BoundColumn?DataField="CompanyName"?HeaderText="CompanyName"></asp:BoundColumn>
????????????????????<asp:BoundColumn?DataField="Address"?HeaderText="Address"></asp:BoundColumn>
????????????????????<asp:BoundColumn?DataField="City"?HeaderText="City"></asp:BoundColumn>
????????????????????<asp:BoundColumn?DataField="Phone"?HeaderText="Phone"></asp:BoundColumn>
????????????????????<asp:BoundColumn?DataField="Fax"?HeaderText="Fax"></asp:BoundColumn>
????????????????????<asp:ButtonColumn?Text="刪除"?CommandName="Delete"></asp:ButtonColumn>
????????????????</Columns>
????????????????<PagerStyle?HorizontalAlign="Right"?ForeColor="#4A3C8C"?BackColor="#E7E7FF"></PagerStyle>
????????????</asp:DataGrid>
????????</form>
????</body>
</HTML>

修改后的Test1.aspx.cs
//***********************************************************
//*公司：
//*作者：YK
//*模塊：Test1
//*功能：
//*創建日期：
//*修改日期：
//***********************************************************
using?System;
using?System.Collections;
using?System.ComponentModel;
using?System.Data;
using?System.Drawing;
using?System.Web;
using?System.Web.SessionState;
using?System.Web.UI;
using?System.Web.UI.WebControls;
using?System.Web.UI.HtmlControls;
using?IBatisNet.Common;
using?IBatisNet.Common.Utilities;
using?IBatisNet.DataMapper;
using?IBatisNet.DataAccess;
namespace?IbatisNet.Example
{
????/**////?<summary>
????///?Test1?的摘要說明。
????///?</summary>
????public?class?Test1?:?System.Web.UI.Page
????{
????????protected?System.Web.UI.WebControls.DataGrid?dgList;
????
????????private?void?Page_Load(object?sender,?System.EventArgs?e)
????????{
????????????//?在此處放置用戶代碼以初始化頁面

????????????if(!Page.IsPostBack)
????????????{
????????????
????????????????this.GetData();
????????????}
????????}

????????Web?窗體設計器生成的代碼#region?Web?窗體設計器生成的代碼
????????override?protected?void?OnInit(EventArgs?e)
????????{
????????????//
????????????//?CODEGEN:?該調用是?ASP.NET?Web?窗體設計器所必需的。
????????????//
????????????InitializeComponent();
????????????base.OnInit(e);
????????}
????????
????????/**////?<summary>
????????///?設計器支持所需的方法?-?不要使用代碼編輯器修改
????????///?此方法的內容。
????????///?</summary>
????????private?void?InitializeComponent()
????????{????
????????????this.dgList.PageIndexChanged?+=?new?System.Web.UI.WebControls.DataGridPageChangedEventHandler(this.dgList_PageIndexChanged);
????????????this.dgList.DeleteCommand?+=?new?System.Web.UI.WebControls.DataGridCommandEventHandler(this.dgList_DeleteCommand);
????????????this.Load?+=?new?System.EventHandler(this.Page_Load);

????????}
????????#endregion
????????private?void?GetData()
????????{
????????????this.dgList.DataSource?=IbatisNet.Example.Mapper.Instance().QueryForList("GetAllCustomers",null);
????????????this.dgList.DataBind();
????????}

????????//翻頁
????????private?void?dgList_PageIndexChanged(object?source,?System.Web.UI.WebControls.DataGridPageChangedEventArgs?e)
????????{
????????????this.dgList.CurrentPageIndex?=?e.NewPageIndex;
????????????this.GetData();
????????}

????????//刪除
????????private?void?dgList_DeleteCommand(object?source,?System.Web.UI.WebControls.DataGridCommandEventArgs?e)?{
????????????string?customerID?=?this.dgList.DataKeys[e.Item.ItemIndex].ToString();
????????????IbatisNet.Example.Mapper.Instance().Delete("DeleteCustomer",customerID);
????????????if(this.dgList.CurrentPageIndex>0&&this.dgList.Items.Count==1)?{
????????????????this.dgList.CurrentPageIndex?=?this.dgList.CurrentPageIndex?-1;?
????????????}
????????????this.GetData();
????????}
????}
}

轉載于:https://www.cnblogs.com/yknb/archive/2006/07/19/454968.html

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