正在阅读：ASP中XML、DataSet、DataGrid结合实例ASP中XML、DataSet、DataGrid结合实例

2004-02-14 09:33 出处：ASPCN 作者：飞刀责任编辑：pjl

上一节中，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; //定义公用的DataSet DataView dv; //定义公用的DataView string SortField; string sPath; public void Page_Load(Object src,EventArgs e) { if(State["adxml"]==null) { sPath = Server.MapPath(".") + "\\AdBanners\\ad_gb.xml"; ds = new DataSet(); ds.ReadXml(sPath); State["adxml"] = ds; } else { ds = (DataSet)State["adxml"]; } dv = ds.Tables[0].DefaultView; dv.Sort = "ImageUrl"; if(!Page.IsPostBack) { CreateTable(); } } //捆绑Binder public void CreateTable() { dgXML.DataSource = dv; dgXML.DataBind(); } //翻页时 public void dgXML_Changed(Object sender,DataGridPageChangedEventArgs e) { CreateTable(); } //删除 public void DelItem(Object sender,DataGridCommandEventArgs e) { if(((LinkButton)e.CommandSource).CommandName == "del") { //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(); //删除 dv.Delete(row); dgXML.EditItemIndex = -1; ds.WriteXml(sPath); CreateTable(); } } //取消 public void dgXML_Cancel(Object sender,DataGridCommandEventArgs e) { dgXML.EditItemIndex = -1; CreateTable(); } //编辑 public void dgXML_Edit(Object sender,DataGridCommandEventArgs e) { dgXML.EditItemIndex = (int)e.Item.ItemIndex; CreateTable(); } //更新 public void dgXML_Update(Object sender, DataGridCommandEventArgs e) { try { //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(); //取得各项值 string ImageUrl = ((TextBox)e.Item.Cells[2].Controls[0]).Text; string NavigateUrl = ((TextBox)e.Item.Cells[3].Controls[0]).Text; string AlternateText = ((TextBox)e.Item.Cells[4].Controls[0]).Text; string Keyword = ((TextBox)e.Item.Cells[5].Controls[0]).Text; string Impressions = ((TextBox)e.Item.Cells[6].Controls[0]).Text; dv.Delete(row); DataRow dr = ds.Tables[0].NewRow(); dr[0] = ImageUrl; dr[1] = NavigateUrl; dr[2] = AlternateText; dr[3] = Keyword; dr[4] = Impressions; ds.Tables[0].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[0].NewRow(); dr[0] = mUrl.Text; dr[1] = aUrl.Text; dr[2] = mText.Text; dr[3] = aKey.Text; dr[4] = aTime.Text; ds.Tables[0].Rows.Add(dr); ds.WriteXml(sPath); CreateTable(); AddItem.Visible=false; } </script> <head> <title></title> </head> <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> 大家好好分析吧，飞刀要去睡觉啦。天天累成这样子，人都瘦了好多，我好心疼啊......(完)