Teachter/admin_FillBlankLists.aspx.cs

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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 Web_admin_FillBlankLists : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
           
            InitDDLData();
            GridViewBind();//初始化考试科目          
        }
    }
    //初始化考试科目
    protected void InitDDLData()
    {

        Data mydata = new Data();

        SqlDataReader dr;
        dr = mydata.GetDataReader("select *  from Course");

        ddlCourse.DataSource = dr;          //指名考试科目列表框数据源
        ddlCourse.DataTextField = "Name";   //DataTextField显示Name字段值
        ddlCourse.DataValueField = "ID";    //DataValueField显示ID字段值
        ddlCourse.DataBind();              //绑定数据
    }
   
    //删除试题事件
    protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
    {

        Data mydata = new Data();     //创建Course对象
        int ID = int.Parse(GridView1.DataKeys[e.RowIndex].Values[0].ToString()); //取出要删除记录的主键值
        mydata.RunSql("delete from FillBlankProblem where id=" + ID);
        Alert.AlertAndRedirect("删除成功！", "admin_FillBlankLists.aspx");
        GridView1.EditIndex = -1;
        GridViewBind();//重新绑定数据
    }
    //显示选择科目的填空题
    protected void ddlCourse_SelectedIndexChanged1(object sender, EventArgs e)
    {
        GridViewBind();//为GridView绑定数据
    }
    protected void GridViewBind()
    {
        int id = (int.Parse(ddlCourse.SelectedValue));//根据考试科目查询单选题信息
        Data mydata = new Data();
        SqlDataReader dr;