📄 addnews.aspx

📁 asp.net经典案例资料

💻 ASPX

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<%@ Page Language="C#" %>
<%@ Import Namespace="System.Data" %>
<%@ Import Namespace="System.IO" %>
<html>
  <head>
    <title>Cache Demo AddNews</title>
    <script language="C#" runat="server" >
    void Page_Load()
    {
      if(!IsPostBack)
      {
        txtTitle.Text = "";
        txtContent.Text = "";
        txtDate.Text = DateTime.Now.ToLongDateString();
      }
    }
    void OnView(object sender, EventArgs arg)
    {
      Response.Redirect("showNews.aspx");
    }
    void OnSubmit(object sender, EventArgs arg)
    {
      // Read data
      DataSet dataSet = new DataSet();
      if(!File.Exists(Server.MapPath("news.xml")))
      {
        DataTable dataTable = new DataTable();
        dataTable.Columns.Add(new DataColumn("title", typeof(string)));
        dataTable.Columns.Add(new DataColumn("date", typeof(string)));
        dataTable.Columns.Add(new DataColumn("content", typeof(string)));
        dataSet.Tables.Add(dataTable);
      }
      else
        dataSet.ReadXml(Server.MapPath("news.xml"));

      // Add Data
      DataRow row = dataSet.Tables[0].NewRow();
      row["title"] = txtTitle.Text;
      row["date"]  = txtDate.Text;
      row["content"] = txtContent.Text;
      dataSet.Tables[0].Rows.Add(row);

      // Modify XML file
      dataSet.WriteXml(Server.MapPath("news.xml"));
      txtTitle.Text = "";
      txtContent.Text = "";
    }
    </script>
  </head>

  <body>
  <form id="form1" runat="server">
    <table><tr>
    <td>标题</td><td><asp:TextBox id="txtTitle" runat="server" /></td>
    </tr><tr>
    <td>时间</td><td><asp:TextBox id="txtDate" runat="server" /></td>
    </tr><tr>
    <td valign="top">内容</td><td>
    <asp:TextBox id="txtContent" runat="server" TextMode="MultiLine"
        Rows="5" Columns="40" />
    </td></tr></table>
    <asp:Button runat="server" OnClick="OnSubmit" Text="提交" />
    <asp:Button runat="server" OnClick="OnView" Text="查看" />
  </form>
  </body>
</html>

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