我們再來看看ASP.Net的源代碼:
由于XML文件占了很大的篇幅,只好把源程序貼在這一頁了。(也是很長的喲,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://定義公用的DataSet DataView dv; file://定義公用的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(); } }
file://捆綁Binder public void CreateTable() {
dgXML.DataSource = dv; dgXML.DataBind(); }
file://翻頁時 public void dgXML_Changed(Object sender,DataGridPageChangedEventArgs e) { CreateTable(); }
file://刪除 public void DelItem(Object sender,DataGridCommandEventArgs e) { if(((LinkButton)e.CommandSource).CommandName == "del") { file://首先取得當前更新頁的行數與CurrentPageIndex int CPI = (int)dgXML.CurrentPageIndex; int EII = (int)e.Item.ItemIndex; int row = CPI*5+EII;
lb.Text = row.ToString();
file://刪除 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://編輯 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://首先取得當前更新頁的行數與CurrentPageIndex int CPI = (int)dgXML.CurrentPageIndex; int EII = (int)e.Item.ItemIndex; int row = CPI*5+EII; file://lb.Text = row.ToString();
file://取得各項值
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> <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="前頁" PagerStyle-NextPageText="后頁" OnPageIndexChanged="dgXML_Changed" OnEditCommand="dgXML_Edit" OnCancelCommand="dgXML_Cancel" OnUpdateCommand="dgXML_Update" OnItemCommand="DelItem" AutoGenerateColumns="false" > <property name="Columns"> <asp:ButtonColumn HeaderText="刪除" Text="刪除" CommandName="del" /> <asp:EditCommandColumn EditText="修改" CancelText="取消" UpdateText="更新" ItemStyle-Wrap="false" HeaderText="操作區" HeaderStyle-Wrap="false" /> <asp:BoundColumn HeaderText="圖片地址(相對)" SortField="ImageUrl" DataField="ImageUrl" /> <asp:BoundColumn HeaderText="鏈接URL" SortField="NavigateUrl" DataField="NavigateUrl" /> <asp:BoundColumn HeaderText="圖片說明" SortField="AlternateText" DataField="AlternateText" /> <asp:BoundColumn HeaderText="類別" SortField="Keyword" DataField="Keyword" /> <asp:BoundColumn HeaderText="顯示時間" SortField="Impressions" DataField="Impressions" /> </property> </asp:DataGrid> <hr> <asp:Button id="vi" Text="添加新項" OnClick="PanelShow" runat="server"/> <br> <asp:Panel id="AddItem" runat="server" Visible="false"> <table> <tr Bgcolor="#aaaadd"><td colspan=2>添加新的廣告頁面</td></tr> <tr> <td>廣告圖片URL:</td> <td><asp:TextBox id="mUrl" runat="server" Text="http://" /></td> </tr> <tr> <td>廣告鏈接地址:</td> <td><asp:TextBox id="aUrl" runat="server" Text="http://" /></td> </tr> <tr> <td>圖片說明:</td> <td><asp:TextBox id="mText" runat="server" /></td> </tr> <tr> <td>廣告所屬類別:</td> <td><asp:TextBox id="aKey" runat="server" /></td> </tr> <tr> <td>顯示時間</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>
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