unit_findcollegenewsdetail.aspx.cs

该系统是一个集成多功能的信息管理系统

/// <summary>
/// 哈尔滨师范大学教务系统开发
/// 作者:易继勇
/// 邮箱:[e-mail]
/// qq:610068468
/// 哈尔滨师范大学教务平台图片展示地址:http://photo.sina.com.cn/yijiyong100
/// 如果您有什么问题,将您的问题发送至邮箱[e-mail],欢迎大家和我交流讨论,多多希望您提出您宝贵的意见!
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;
using System.Text;
using System.IO;
using System.Drawing;

public partial class manager_sysManager_unitManage_unit_findCollegeNewsDetail : System.Web.UI.Page
{
    BaseClass bc = new BaseClass();
    int currentPageNumber;
    int pageTotalNumber = 0;
    protected void Page_Load(object sender, EventArgs e)
    {
        
        if (Convert.ToString(Session["manName"]) == "")
        {
            Response.Write("<script language=javascript>location='../../../TS_ManagerLogin.aspx'</script>");
            return;
        }
        if (!IsPostBack)
        {
            SqlConnection con = new SqlConnection(ConfigurationManager.AppSettings["strcon"]);
            con.Open();
            SqlDataAdapter sda1 = new SqlDataAdapter(" select college from ts_unit_college", con);
            DataSet ds1 = new DataSet();
            sda1.Fill(ds1, "ts_unit_college");
            this.college.DataSource = ds1.Tables["ts_unit_college"];

            this.college.DataTextField = "college";
            this.college.DataBind();
            con.Close();
            this.bind();
            if (pageTotalNumber != 0)
            {
                int pageSize = GridView1.PageCount;
                this.totalNumber.Text = Convert.ToString(pageSize);
                for (int i = 0; i < pageSize; i++)
                {

                    this.pageNumber.Items.Add(new ListItem(Convert.ToString(i + 1)));
                }
                this.Label1.Text = "1";
                currentPageNumber = 1;

                if (pageSize == 1)
                {
                    this.firstPage.Enabled = false;
                    this.upPage.Enabled = false;
                    this.lastPage.Enabled = false;
                    this.downPage.Enabled = false;
                }
                else if (pageSize > 1)
                {
                    if (currentPageNumber == 1)
                    {
                        this.firstPage.Enabled = false;
                        this.upPage.Enabled = false;
                        this.lastPage.Enabled = true;
                        this.downPage.Enabled = true;
                    }
                    else if (currentPageNumber == pageSize)
                    {
                        this.lastPage.Enabled = false;
                        this.downPage.Enabled = false;
                        this.upPage.Enabled = true;
                        this.firstPage.Enabled = true;
                    }
                    else
                    {
                        this.lastPage.Enabled = true;
                        this.upPage.Enabled = true;
                        this.downPage.Enabled = true;
                        this.firstPage.Enabled = true;
                    }
                }
            }
        }
    }

    private void bind()
    {
        string Sql = "select * from ts_news  where releaseUnit ='" + this.college.Text + "' and newsStyle='"+ "院系新闻" +"' order by id desc";
        DataSet ds = new DataSet();
        ds = bc.GetDataSet(Sql, "ts_news");

        GridView1.DataSource = ds.Tables["ts_news"];
        pageTotalNumber = ds.Tables["ts_news"].Rows.Count;
        GridView1.DataKeyNames = new string[] { "id" };
        GridView1.DataBind();
        int pageSize = GridView1.PageCount;

        for (int i = 0; i <= GridView1.Rows.Count - 1; i++)
        {
            DataRowView rowview;
            string title;
            string content;
            if (GridView1.PageIndex == 0)
            {
                rowview = ds.Tables["ts_news"].DefaultView[i];
                title = Convert.ToString(rowview["title"]);
                content = Convert.ToString(rowview["content"]);
                GridView1.Rows[i].Cells[1].Text = bc.SubStr(title, 15);
                GridView1.Rows[i].Cells[2].Text = bc.SubStr(content,20);
            }
            else
            {
                rowview = ds.Tables["ts_news"].DefaultView[i + (8 * GridView1.PageIndex)];
                title = Convert.ToString(rowview["title"]);
                content = Convert.ToString(rowview["content"]);
                GridView1.Rows[i].Cells[1].Text = bc.SubStr(title, 15);
                GridView1.Rows[i].Cells[2].Text = bc.SubStr(content, 20);
            }
        }
        this.totalNumber.Text = Convert.ToString(pageSize);
        this.pageNumber.Items.Clear();
        for (int i = 0; i < pageSize; i++)
        {

            this.pageNumber.Items.Add(new ListItem(Convert.ToString(i + 1)));
        }
        //this.pageNumber.Text = Convert.ToString(currentPageNumber);
        if (GridView1.Rows.Count > 0)
        {
            this.jump.Enabled = true;
            this.export.Enabled = true;
            this.Label1.Text = Convert.ToString(GridView1.PageIndex + 1);
            this.search.Text = "一共搜索到" + pageTotalNumber + "院系新闻信息.   共" + pageSize + "页";
        }
        else
        {
            this.search.Text = "没有找到相关的院系新闻信息！";
            this.Label1.Text = "0";
            this.lastPage.Enabled = false;
            this.upPage.Enabled = false;
            this.downPage.Enabled = false;
            this.firstPage.Enabled = false;
            this.jump.Enabled = false;
            this.export.Enabled = false;

        }
        currentPageNumber = GridView1.PageIndex + 1;
        if (pageSize == 1)
        {
            this.firstPage.Enabled = false;
            this.upPage.Enabled = false;
            this.lastPage.Enabled = false;
            this.downPage.Enabled = false;
        }
        else if (pageSize > 1)
        {
            if (currentPageNumber == 1)
            {
                this.firstPage.Enabled = false;
                this.upPage.Enabled = false;
                this.lastPage.Enabled = true;
                this.downPage.Enabled = true;
            }
            else if (currentPageNumber == pageSize)
            {
                this.lastPage.Enabled = false;
                this.downPage.Enabled = false;
                this.upPage.Enabled = true;
                this.firstPage.Enabled = true;
            }
            else
            {
                this.lastPage.Enabled = true;
                this.upPage.Enabled = true;
                this.downPage.Enabled = true;
                this.firstPage.Enabled = true;
            }
        }
    }
    protected void export_Click(object sender, EventArgs e)
    {
        Export("application/ms-excel", "院系新闻信息报表.xls");
    }

    private void Export(string FileType, string FileName)
    {
        this.bind();
        SqlConnection con = new SqlConnection(ConfigurationManager.AppSettings["strcon"]);
        con.Open();
        string Sql = "select * from ts_news  where releaseUnit ='" + this.college.Text + "' and newsStyle='" + "院系新闻" + "' order by id desc";
        DataSet ds = new DataSet();
        ds = bc.GetDataSet(Sql, "ts_news");
        DataTable dt = ds.Tables["ts_news"];
        StringBuilder sb = new StringBuilder();
        sb.Append("院系新闻标题\t院系新闻内容\t发布人\t发布日期\t有效日期\t发布单位");
        StringWriter sw = new StringWriter();
        sw.WriteLine(sb.ToString());

        foreach (DataRow r in dt.Rows)
        {
            sb = new StringBuilder();
            sb.Append(r["title"].ToString());
            sb.Append("\t" + r["content"].ToString());
            sb.Append("\t" + r["releaseMan"].ToString());
            sb.Append("\t" + r["releaseDate"].ToString());
            sb.Append("\t" + r["dateLimit"].ToString());
            sb.Append("\t" + r["releaseUnit"].ToString());

            sw.WriteLine(sb.ToString());
        }
        sw.Close();
        Response.Clear();
        Response.AddHeader("Content-Disposition", "attachment; filename=" + HttpUtility.UrlEncode(FileName, Encoding.UTF8).ToString());
        Response.ContentType = FileType;// 指定返回的是一个不能被客户端读取的流，必须被下载 
        Response.ContentEncoding = System.Text.Encoding.Default;//.GetEncoding("GB2312");
        Response.Write(sw);// 把流发送到客户端 
        Response.End();
        con.Close();

    }

    public override void VerifyRenderingInServerForm(Control control)
    {
    }
    protected void firstPage_Click(object sender, EventArgs e)
    {
        this.GridView1.PageIndex = 0;
        this.Label1.Text = "1";
        this.bind();
        this.pageNumber.Text = "1";
        currentPageNumber = 1;
        int pageSize = GridView1.PageCount;
        if (pageSize == 1)
        {
            this.firstPage.Enabled = false;
            this.upPage.Enabled = false;
            this.lastPage.Enabled = false;
            this.downPage.Enabled = false;
        }
        else if (pageSize > 1)
        {
            if (currentPageNumber == 1)
            {
                this.firstPage.Enabled = false;
                this.upPage.Enabled = false;
                this.lastPage.Enabled = true;
                this.downPage.Enabled = true;
            }
            else if (currentPageNumber == pageSize)
            {
                this.lastPage.Enabled = false;
                this.downPage.Enabled = false;
                this.upPage.Enabled = true;
                this.firstPage.Enabled = true;
            }