add.aspx.cs

学生成绩管理系统 利用ajax进行开发的一个简单的学生成绩管理系统。由于本人刚刚开始学习ajax

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 add : System.Web.UI.Page
{
    private SqlConnection conn = new SqlConnection();//数据库连接实例化   
    protected void Page_Load(object sender, EventArgs e)
    {
        string myconn = ConfigurationManager.ConnectionStrings["student"].ConnectionString;
        conn.ConnectionString = myconn;
    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        try
        {
            SqlDataAdapter adp = new SqlDataAdapter();
            conn.Open();
            int zf = (Convert.ToInt32(TextBox1.Text) + Convert.ToInt32(TextBox2.Text));
            SqlCommand cmd = new SqlCommand("insert into chengji (姓名,语文,数学,总分) values ('" + TextBox3.Text + "','" + TextBox1.Text + "','" + TextBox2.Text + "','" + zf + "')", conn);
            cmd.ExecuteNonQuery();
            Response.Redirect("default.aspx");
        }
        catch
        {
            Response.Redirect("add.aspx");
        }
        finally
        {
            conn.Close();
            
        }
    }
}