Admin/shipinManage.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;
using System.Data;

public partial class Admin_shipinManage : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            BindData();//加载数据
        }
    }
    private void BindData()
    {
        string sql;
        sql = "select * from shipin where jiaoshiID=" + Session["jiaoshiID"].ToString() + "";//查询所有测试题目
        DataSet ds = LinkDB.Query(sql);//执行查询语句，返回数据集合
        DataGrid1.DataSource = ds.Tables[0];
        DataGrid1.DataKeyField = "ID";
        DataGrid1.DataBind();

    }

    protected void Button1_Click(object sender, EventArgs e)
    {
        BindData();
    }

    protected void DataGrid1_PageIndexChanged(object source, DataGridPageChangedEventArgs e)
    {
        DataGrid1.CurrentPageIndex = e.NewPageIndex;
        BindData();
    }
    protected void DataGrid1_DeleteCommand(object source, DataGridCommandEventArgs e)
    {
        int index = e.Item.ItemIndex;
        string id = this.DataGrid1.DataKeys[index].ToString().Trim();//获取主键ID
        string sql;
        sql = "delete from shipin where ID=" + id + " ";//按照ID删除
        int result = LinkDB.ExecuteSql(sql);
        if (result == 1)
        {
            Response.Write("<script>javascript:alert('删除成功');</script>");

            BindData();
        }
        else
        {
            Response.Write("<script>javascript:alert('系统错误，请检查数据库设置问题');</script>");
        }
    }
    protected void DataGrid1_ItemDataBound(object sender, DataGridItemEventArgs e)
    {
        if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
        {