SysManage/DuDaoOper.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 SysManage_DuDaoOper : System.Web.UI.Page
{
    string id = string.Empty;
    protected void Page_Load(object sender, EventArgs e)
    {
        id = Request.QueryString["id"];
        if (!IsPostBack)
        {
            DB.Bind_Dropdownlist("select * from jiaoshi order by jiaoshiid asc", ddlJiaoShi, "jiaoshiid", "jiaoshiname");
            DB.Bind_Dropdownlist("select * from xueqi order by xueqiid desc", ddlXueQi, "xueqiid", "xueqiname");

            Get_Data();
        }
    }

    void Get_Data()
    {
        try
        {
            string jiaoshiid = Request.QueryString["jiaoshiid"];
            string xueqiid = Request.QueryString["xueqiid"];

            DataTable dt = DB.getDataTable("select * from DuDao where jiaoshiid=" + jiaoshiid + " and xueqiid=" + xueqiid);
            if (dt.Rows.Count == 1)
            {

                ddlJiaoShi.SelectedValue = dt.Rows[0]["JiaoShiId"].ToString();
                ddlXueQi.SelectedValue = dt.Rows[0]["XueQiId"].ToString();
                ddlJiaoShi.Enabled = false;
                ddlXueQi.Enabled = false;

                xiang.Text = dt.Rows[0]["xiang"].ToString();
                xiang2.Text = dt.Rows[0]["xiang2"].ToString();
                xiang3.Text = dt.Rows[0]["xiang3"].ToString();
                xiang.ReadOnly = true;
                xiang2.ReadOnly = true;
                xiang3.ReadOnly = true;

                btnSubmit.Visible = false;
            }
            else
            {
                ddlXueQi.SelectedValue = xueqiid;
                ddlJiaoShi.SelectedValue = jiaoshiid;
                ddlJiaoShi.Enabled = false;
                ddlXueQi.Enabled = false;
            }
        }