admin/insert_taoti.aspx.cs

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using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.Data.SqlClient;

public partial class admin_insert_taoti : System.Web.UI.Page
{
    DataCode dataconn = new DataCode();
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            dataconn.DownList(DropDownList1, "select * from tb_Profession", "Name", "id");
            GetDropDownList();
        }
        this.Label1.Visible = false;
    }
 

    protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
    {
        GetDropDownList();
    }
    public void GetDropDownList()
    {
        //调用ecDropDownList方法，绑定考试专业信息
        dataconn.DownList(DropDownList2, "select * from tb_Lesson where ofProfession='"
            + DropDownList1.SelectedValue.ToString() + "'", "Name", "id");
        dataconn.DownList(DropDownList3, "select a.*,b.ofProfession from tb_TaoTi as a join tb_Lesson as b on a.LessonID=b.ID where a.LessonID='"
            + DropDownList2.SelectedValue.ToString() + "' and b.ofProfession='"
            + DropDownList1.SelectedValue.ToString() + "'", "Name", "id");
    }
    protected void DropDownList2_SelectedIndexChanged(object sender, EventArgs e)
    {
        dataconn.DownList(DropDownList3, "select * from tb_TaoTi where LessonID='" + DropDownList2.SelectedValue.ToString() + "'", "Name", "id");
    }
    protected void ImageButton1_Click(object sender, ImageClickEventArgs e)
    {
        Session["drop1"] = DropDownList1.Text;
        Session["drop2"] = DropDownList2.Text;
        Session["drop3"] = DropDownList3.Text;
        if (this.DropDownList2.Text == "")
        {
            //this.Label3.Text = "请选择考试课程";
            this.Label2.Visible = true;
            return;
        }
        if (this.DropDownList3.Text == "")
        {
            //this.Label5.Text = "请先添加考试试题！";
            this.Label1.Visible = true;