AddTopic.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;

public partial class AddTopic : System.Web.UI.Page
{
    SqlHelper data = new SqlHelper();
    protected void Page_Load(object sender, EventArgs e)
    {
        this.Title = "二手汽车网上销售系统";
        if (!IsPostBack)
        {
           
        }
    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        string sql = "";
        if (Session["UserName"] == null)
        {
            sql = "insert into Topic(Topic,AddUser,Content)values('" + tb_title.Text + "','游客','" + ArticleContent.Value + "')";
        }
        else
        {
            sql = "insert into Topic(Topic,AddUser,Content)values('" + tb_title.Text + "','" + Session["UserName"].ToString() + "','" + ArticleContent.Value + "')";

        }
        data.RunSql(sql);
        Alert.AlertAndRedirect("发布成功", "BBS.aspx");
    }
}