yz_add.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;

public partial class yz_add : System.Web.UI.Page
{
    public string fname;
    protected void Page_Load(object sender, EventArgs e)
    {
      
        if (!IsPostBack)
        {
            string sql;
            sql = "select * from alllb order by id desc";
            getdata(sql);
        }
    }
    private void getdata(string sql)
    {
        DataSet result = new DataSet();
        result = new Class1().hsggetdata(sql);
        if (result != null)
        {
            if (result.Tables[0].Rows.Count > 0)
            {
                int k = 0;
                for (k = 0; k < result.Tables[0].Rows.Count; k++)
                {
                    lb.Items.Add(result.Tables[0].Rows[k]["lb"].ToString().Trim());
                }

            }
        }
    }


   
    protected void Button1_Click(object sender, EventArgs e)
    {
        if (username.Text.ToString().Trim() != "")
        {

            string sql3 = "select * from room where no='" + this.lb.SelectedValue + "'";
            DataSet result3 = new DataSet();
            result3 = new Class1().hsggetdata(sql3);
            string lh = "";
            string hx = "";
            if (result3.Tables[0].Rows.Count > 0)
            {
              

                lh = result3.Tables[0].Rows[0]["lh"].ToString().Trim();
                hx = result3.Tables[0].Rows[0]["hx"].ToString().Trim();