ArticleShow.aspx
<%@ Page Language="C#" %> <%@ Import Namespace="System.Data" %> <%@ Import Namespace="System.Data.SqlClient" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <mce:script runat="server"><!-- protected void Page_Load(object sender, EventArgs e) { int ArticleGuid = 0; HttpContext context = HttpContext.Current; if (context.Items["ArticleGuid"] != null) { Int32.TryParse(context.Items["ArticleGuid"].ToString(), out ArticleGuid); } if (ArticleGuid < 1) { ArticleTitle.InnerHtml = "加载文章错误"; ArticleContent.InnerHtml = "指定的 标识 无效！"; ArticleContent.Style["color"] = "#f00"; } else { String ConnectionString = "Data Source=(local);Initial Catalog=ArticleDev;User ID=sa;Password=sa"; SqlConnection cn = new SqlConnection(ConnectionString); cn.Open(); String sql = "Select * From Article Where ArticleId = @ArticleId"; SqlCommand cmd = new SqlCommand(sql, cn); cmd.Parameters.AddWithValue("@ArticleId", ArticleGuid); SqlDataReader dr = cmd.ExecuteReader(); if (dr.Read()) { ArticleTitle.InnerHtml = dr["Title"].ToString(); ArticleContent.InnerHtml = dr["Content"].ToString(); } else { ArticleTitle.InnerHtml = "加载文章错误"; ArticleContent.InnerHtml = "指定的文章不存在！"; ArticleContent.Style["color"] = "#f00"; } cn.Dispose(); } } // --></mce:script> <html xmlns="https://www.w3.org/1999/xhtml"> <head runat="server"> <title></title> </head> <body> <form id="form1" runat="server"> <h2 id="ArticleTitle" runat="server" style="text-align:center" mce_style="text-align:center"> </h2> <hr /> <div id="ArticleContent" runat="server"> </div> </form> </body> </html> |
这段代码中，我们从自定义路由处理程序中添加的 HttpContext 对象中取出参数 context.Items["ArticleGuid"]，然后进行处理。
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