OATest/UserWork/MailListC.aspx.cs

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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.IO;
public partial class UserWork_MailListC : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            Bind();
        }
    }
  
    public void Bind()
    {
        SqlConnection con = new SqlConnection(ConfigurationManager.AppSettings["Connection"]);
        con.Open();
        string sql = "select * from Draft where Username='"+Session["UserName"].ToString()+"'";
        SqlDataAdapter da = new SqlDataAdapter(sql,con);
        DataSet ds = new DataSet();
        da.Fill(ds);
        GridView1.DataSource = ds;
        GridView1.DataBind();
        con.Close();
    }
    protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
    {
        SqlConnection con = new SqlConnection(ConfigurationManager.AppSettings["Connection"]);
        con.Open();
        int sid = Convert.ToInt32(GridView1.DataKeys[e.RowIndex].Value.ToString());
        string sql = "select Appurtenance from Draft where DraftId=" + sid + "";
        SqlCommand com = new SqlCommand(sql, con);
        SqlDataReader dr = com.ExecuteReader();
        dr.Read();
        string ss = dr["Appurtenance"].ToString();
        string[] a = ss.Split(';');
        string url = "";
        for (int i = 0; i < a.Length; i++)
        {
            string b = a[i];
            url = Server.MapPath("~") + "\\upfiles\\" + b;
            break;
        }

        if (File.Exists(url))
        {
            File.Delete(url);
        }
        SqlConnection con1 = new SqlConnection(ConfigurationManager.AppSettings["Connection"]);
        con1.Open();
        string sql1 = "delete from Draft  where DraftId =" + sid + "";