adminreply.aspx.cs

本程序基于 asp.net 2.0 +sql server 2

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;

public partial class admin_adminReply : System.Web.UI.Page
{
    //需要校验reply表中的bloguserid(此篇回复针对谁的blog)
    //字段是否和 当前的 session中的userid 一样
    //只有一样，才有删除权限

    SqlDataReader dr;
    int replyid, blogid, bloguserid,pagesize = 10;
    string title, add_date, username;
    string action;

    protected void Page_Load(object sender, EventArgs e)
    {
        if (Session["admin"] == null)
            Response.Redirect("adminLogin.aspx");
        if (!IsPostBack)
        {
            pageNavigate();
            readReply(1);
            ViewState["currentPage"] = 1;
        }

        if (Request.QueryString["action"] != null)
            this.action = Request.QueryString["action"].ToString();
        if (this.action == "delete") deleteReply();
    }

    private void deleteReply()
    {
        string strconn = ConfigurationManager.ConnectionStrings["dsn"].ToString();

        SqlConnection cn = new SqlConnection(strconn);
        cn.Open();
        SqlCommand cm = new SqlCommand("delReply", cn);
        cm.CommandType = CommandType.StoredProcedure;

        cm.Parameters.Add("@bloguserid", SqlDbType.Int);
        cm.Parameters.Add("@blogid", SqlDbType.Int);
        cm.Parameters.Add("@replyid", SqlDbType.Int);

        cm.Parameters["@bloguserid"].Value = Convert.ToInt32(Request.QueryString["bloguserid"]);
        cm.Parameters["@blogid"].Value = Convert.ToInt32(Request.QueryString["blogid"]);
        cm.Parameters["@replyid"].Value = Convert.ToInt32(Request.QueryString["replyid"]);

        try
        {
            cm.ExecuteNonQuery();
        }
        catch (SqlException ex)
        {
            displayJavaMsg(ex.Message);
        }
        finally
        {
            cn.Close();
        }
        Response.Redirect("adminReply.aspx");
    }

    //显示弹出窗口的消息
    private void displayJavaMsg(string str)
    {
        javaMsg.InnerHtml = "<script type='text/javascript'>alert('" + str + "');</script>";
    }

    //生成总页数，根据每页显示多少条记录得出页数
    private void pageNavigate()
    {
        string strconn = ConfigurationManager.ConnectionStrings["dsn"].ToString();
        SqlConnection cn = new SqlConnection(strconn);
        cn.Open();

        string mysql = "select count(replyid) from reply ";
        SqlCommand cm = new SqlCommand(mysql, cn);

        SqlDataReader sumdr = cm.ExecuteReader();
        if (sumdr.Read())
            ViewState["sumPage"] = Convert.ToInt32(sumdr[0].ToString()) / pagesize + 1;
        lb_sum_page.Text = ViewState["sumPage"].ToString();
        cn.Close();
    }

    //根据用户的userid，和当前状态视图中存储的页码 读取指定条数的数据记录并显示
    private string readReply(int pageindex)
    {
        string strconn = ConfigurationManager.ConnectionStrings["dsn"].ToString();

        SqlConnection cn = new SqlConnection(strconn);
        cn.Open();
        SqlCommand cm = new SqlCommand("pageManageReplyAdmin", cn);
        cm.CommandType = CommandType.StoredProcedure;

        cm.Parameters.Add("@PageSize", SqlDbType.Int);
        cm.Parameters.Add("@PageIndex", SqlDbType.Int);

        cm.Parameters["@PageSize"].Value = pagesize;
        cm.Parameters["@PageIndex"].Value = pageindex;

        try
        {
            this.dr = cm.ExecuteReader();
            displayData();
            ViewState["currentPage"] = pageindex;
            lb_current_page.Text = pageindex.ToString();
            return "success";

        }
        catch (SqlException ex)
        {
            return ex.Message;
        }
        finally
        {
            cn.Close();
        }
    }
    //输出html文本，输出的是一个表格，输出到了预先定义的span （message） 中
    private void displayData()
    {
        string head, data = "";
        head = "<table><tr class=firstrow>";
        head += "<td class=col1>编号</td>";
        head += "<td class=col4>标题</td>";
        head += "<td class=col2>日期</td>";
        head += "<td class=col1>回复人</td>";
        head += "<td class=col1>编辑</td>";
        head += "<td class=col1>删除</td></tr>";

        while (this.dr.Read())
        {
            this.replyid = Convert.ToInt32(dr["replyid"].ToString());
            this.blogid = Convert.ToInt32(dr["blogid"].ToString());
            this.bloguserid = Convert.ToInt32(dr["bloguserid"].ToString());
            this.title = dr["title"].ToString();
            this.add_date = dr["add_date"].ToString();
            this.username = dr["username"].ToString();

            data += "<tr class=datarow>";
            data += "<td>" + replyid + "</td>";
            data += "<td><a title=" + title + " href=../article.aspx?userid=" + bloguserid + "&blogid=" + blogid;
            data += ">" + title + "</a></td>";
            data += "<td>" + add_date + "</td>";
            data += "<td>" + dr["username"].ToString() + "</td>";
            data += "<td><a href=adminReplyEdit.aspx?replyid=" +replyid  + ">修改</a></td>";
            data += "<td><a href=adminReply.aspx?action=delete&replyid=" + replyid + "&blogid=" + blogid+"&bloguserid="+bloguserid;
            data += ">删除</a></td>";
            data += "</tr>";
        }
        string all = head + data + "</table>";
        message.InnerHtml = all;
    }
    protected void tb_goPage_TextChanged(object sender, EventArgs e)
    {
        int x = Convert.ToInt32(tb_goPage.Text);
        if (x < 1) x = 1;
        int sumpage = Convert.ToInt32(ViewState["sumPage"].ToString());
        if (x > sumpage) x = sumpage;
        readReply(x);
    }
    protected void lb_previous_Click(object sender, EventArgs e)
    {
        int x = Convert.ToInt32(ViewState["currentPage"].ToString()) - 1;
        if (x < 1) x = 1;
        readReply(x);
    }
    protected void lb_next_Click(object sender, EventArgs e)
    {
        int x = Convert.ToInt32(ViewState["currentPage"].ToString()) + 1;
        int sumpage = Convert.ToInt32(ViewState["sumPage"].ToString());
        if (x > sumpage) x = sumpage;
        readReply(x);
    }


}