XKsystem/Student_operate.aspx.cs

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace XKsystem
{
    public partial class Student_operate : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                TextBox3.Text = Session["name"].ToString();
                TextBox4.Text = Session["ID"].ToString();
                Session.Remove("name");
                Session.Remove("ID");
                Scjz();
               
            }
        }

        protected void Scjz()
        {
                GridView1.DataSource = BLL.Class1.cxqpp();
                GridView1.DataBind();
        }
        protected void Button2_Click(object sender, EventArgs e)
        {
            int id = int.Parse(TextBox2.Text);
            GridView1.DataSource = BLL.Class1.SelectID(id);
            GridView1.DataBind();
        }

        protected void Button1_Click(object sender, EventArgs e)
        {
            string name = TextBox1.Text;
            GridView1.DataSource = BLL.Class1.cxmzmh(name);
            GridView1.DataBind();
        }

        protected void GridView1_SelectedIndexChanging(object sender, GridViewSelectEventArgs e)
        {
            Session["XID"] = int.Parse(GridView1.Rows[e.NewSelectedIndex].Cells[0].Text);

            Session["name"] = TextBox3.Text;
            Session["ID"] = TextBox4.Text;
            Response.Redirect("Student_information_view.aspx");

        }

        protected void GridView1_RowDeleted(object sender, GridViewDeletedEventArgs e)
        {
            
        }

        protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
        {