我们再来看看ASP.Net的源代码：
由于XML文件占了很大的篇幅，只好把源程序贴在这一页了。(也是很长的哟，大家有性子看才行)
| ＜% @ Page Language="C#" ResponseEncoding="gb2312" %＞ ＜% @ Import Namespace="System.Data" %＞ ＜% @ Import Namespace="System.Xml" %＞ ＜% @ Import Namespace="System.IO" %＞ ＜Script Language="C#" Runat="Server"＞ DataSet ds; file://定义公用的DataSet DataView dv; file://定义公用的DataView string SortField; string sPath; public void Page_Load(Object src,EventArgs e) { if(State==null) { sPath = **************(".") + "\\AdBanners\\ad_gb.xml"; ds = new DataSet(); ds.ReadXml(sPath); State = ds; } else { ds = (DataSet)State; } dv = ds.Tables.DefaultView; dv.Sort = "ImageUrl"; if(!Page.IsPostBack) { CreateTable(); } } file://捆绑Binder public void CreateTable() { dgXML.DataSource = dv; dgXML.DataBind(); } file://翻页时 public void dgXML_Changed(Object sender,DataGridPageChangedEventArgs e) { CreateTable(); } file://删除 public void DelItem(Object sender,DataGridCommandEventArgs e) { if(((LinkButton)e.CommandSource).CommandName == "del") { file://首先取得当前更新页的行数与CurrentPageIndex int CPI = (int)dgXML.CurrentPageIndex; int EII = (int)e.Item.ItemIndex; int row = CPI*5+EII; lb.Text = row.ToString(); file://删除 dv.Delete(row); dgXML.EditItemIndex = -1; ds.WriteXml(sPath); CreateTable(); } } file://取消 public void dgXML_Cancel(Object sender,DataGridCommandEventArgs e) { dgXML.EditItemIndex = -1; CreateTable(); } file://编辑 public void dgXML_Edit(Object sender,DataGridCommandEventArgs e) { dgXML.EditItemIndex = (int)e.Item.ItemIndex; CreateTable(); } file://更新 public void dgXML_Update(Object sender, DataGridCommandEventArgs e) { try { file://首先取得当前更新页的行数与CurrentPageIndex int CPI = (int)dgXML.CurrentPageIndex; int EII = (int)e.Item.ItemIndex; int row = CPI*5+EII; file://lb.Text = row.ToString(); file://取得各项值 string ImageUrl = ((TextBox)e.Item.Cells.Controls).Text; string NavigateUrl = ((TextBox)e.Item.Cells.Controls).Text; string AlternateText = ((TextBox)e.Item.Cells.Controls).Text; string Keyword = ((TextBox)e.Item.Cells.Controls).Text; string Impressions = ((TextBox)e.Item.Cells.Controls).Text; dv.Delete(row); DataRow dr = ds.Tables.NewRow(); dr = ImageUrl; dr = NavigateUrl; dr = AlternateText; dr = Keyword; dr = Impressions; ds.Tables.Rows.Add(dr); ds.WriteXml(sPath); } catch(Exception ee) { lb.Text = ee.ToString(); } dgXML.EditItemIndex = -1; CreateTable(); } public void PanelShow(Object sender,EventArgs e) { AddItem.Visible = true; } public void AddItem_Click(Object sender,EventArgs e) { DataRow dr = ds.Tables.NewRow(); dr = mUrl.Text; dr = aUrl.Text; dr = mText.Text; dr = aKey.Text; dr = aTime.Text; ds.Tables.Rows.Add(dr); ds.WriteXml(sPath); CreateTable(); AddItem.Visible=false; } ＜/script＞ ＜html＞ ＜head＞ ＜title＞＜/title＞ ＜/head＞ ＜body＞ ＜form id="form1" runat="server"＞ ＜asp:DataGrid id="dgXML" runat="server" AllowPaging="True" PageSize="10" BorderColor="black" BorderWidth="1" CellPadding="3" Font-Name="Verdana" Font-Size="8pt" HeaderStyle-BackColor="#aaaadd" PagerStyle-Mode="NumericPages" PagerStyle-HorizontalAlign="Right" PagerStyle-PrevPageText="前页" PagerStyle-NextPageText="后页" OnPageIndexChanged="dgXML_Changed" OnEditCommand="dgXML_Edit" OnCancelCommand="dgXML_Cancel" OnUpdateCommand="dgXML_Update" OnItemCommand="DelItem" AutoGenerateColumns="false" ＞ ＜property name="Columns"＞ ＜asp:ButtonColumn HeaderText="删除" Text="删除" CommandName="del" /＞ ＜asp:EditCommandColumn EditText="修改" CancelText="取消" UpdateText="更新" ItemStyle-Wrap="false" HeaderText="操作区" HeaderStyle-Wrap="false" /＞ ＜asp:BoundColumn HeaderText="图片地址(相对)" SortField="ImageUrl" DataField="ImageUrl" /＞ ＜asp:BoundColumn HeaderText="链接URL" SortField="NavigateUrl" DataField="NavigateUrl" /＞ ＜asp:BoundColumn HeaderText="图片说明" SortField="AlternateText" DataField="AlternateText" /＞ ＜asp:BoundColumn HeaderText="类别" SortField="Keyword" DataField="Keyword" /＞ ＜asp:BoundColumn HeaderText="显示时间" SortField="Impressions" DataField="Impressions" /＞ ＜/property＞ ＜/asp:DataGrid＞ ＜hr＞ ＜asp:Button id="vi" Text="添加新项" OnClick="PanelShow" runat="server"/＞ ＜br＞ ＜asp:Panel id="AddItem" runat="server" Visible="false"＞ ＜table＞ ＜tr Bgcolor="#aaaadd"＞＜td colspan=2＞添加新的广告页面＜/td＞＜/tr＞ ＜tr＞ ＜td＞广告图片URL:＜/td＞ ＜td＞＜asp:TextBox id="mUrl" runat="server" Text="http://" /＞＜/td＞ ＜/tr＞ ＜tr＞ ＜td＞广告链接地址:＜/td＞ ＜td＞＜asp:TextBox id="aUrl" runat="server" Text="http://" /＞＜/td＞ ＜/tr＞ ＜tr＞ ＜td＞图片说明：＜/td＞ ＜td＞＜asp:TextBox id="mText" runat="server" /＞＜/td＞ ＜/tr＞ ＜tr＞ ＜td＞广告所属类别:＜/td＞ ＜td＞＜asp:TextBox id="aKey" runat="server" /＞＜/td＞ ＜/tr＞ ＜tr＞ ＜td＞显示时间＜/td＞ ＜td＞＜asp:TextBox id="aTime" runat="server" /＞＜/td＞ ＜/tr＞ ＜tr＞＜td＞ ＜asp:Button id="submit" Text="提交" OnClick="AddItem_Click" runat="server" /＞＜/td＞＜/tr＞ ＜/table＞ ＜/asp:Panel＞ ＜asp:Label id="lb" runat="server" /＞ ＜/form＞ ＜/body＞ ＜/html＞ |
大家好好分析吧。