Addinfo.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;

public partial class Addinfo : System.Web.UI.Page
{

    DataAccess MarketBase = new DataAccess();
    protected void Page_Load(object sender, EventArgs e)
    {

        if (!IsPostBack)
        {
            if (Session["UserId"] == null)
            {
                Alert.AlertAndRedirect("您还没有登录", "Login.aspx");
            }
            else
            {
                SqlConnection conn = new SqlConnection(MarketBase.SqlBase);
                conn.Open();
                DataTable dt1 = new DataTable();
                dt1 = MarketBase.DisPlayList_Ds("select * from InfoType", conn);
                DropDownList1.DataTextField = "TypeName";
                DropDownList1.DataValueField = "TypeID";
                DropDownList1.DataSource = dt1.DefaultView;
                DropDownList1.DataBind();
            }
          
        }


    }
    protected void btSave_Click(object sender, EventArgs e)
    {
        if (Session["UserId"] == null)
            lbinforn.Text = "请先登录再发表新的信息";
        else
        {
            int state;
            string picpath;
            string useridnumber = Session["UserId"].ToString();
            string markeddate = DateTime.Now.ToString("yyyy-MM-dd");
          
           
            string Pic;
            SqlConnection conn = new SqlConnection(MarketBase.SqlBase);
            conn.Open();
            HttpPostedFile httpup = FileUp.PostedFile;
            if (httpup.ContentLength != 0)
            {
                string PathFileName = httpup.FileName;