用户反馈信息textbox填充数据表，页面使用gridview显示反馈意见

1.用户反馈信息textbox填充数据表

用户通过radiobuttonlist和textbox输入信息，后台代码将该信息导入数据库中。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Windows.Forms;
using System.Windows.Forms.DataVisualization.Charting;
using System.Data;
using System.Data.SqlClient;

namespace WebApplication1
{
public partial class WebForm9 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
//数据库连接
SqlConnection conn = new SqlConnection("Data Source=PC-PC;Initial Catalog=TunnelMonitor;Integrated Security=True");
string sql = "insert into UserAdvice (UserName,Grade,Advice,Time) values ('" + Session["UserName"].ToString() + "','" + RadioButtonList1.SelectedValue + "','" + TextBox1.Text + "','" + DateTime.Now.ToString() + "')";
SqlCommand cmd = new SqlCommand(sql, conn);
conn.Open();
SqlDataReader reader = cmd.ExecuteReader(CommandBehavior.CloseConnection);
}

protected void RadioButton1_CheckedChanged(object sender, EventArgs e)
{

}

protected void Button2_Click(object sender, EventArgs e)
{

}
}
}

2.页面使用gridview显示反馈意见

通过gridview新建数据库连接，连接到用户意见数据表，用于显示信息