dingdan/dingdanAdd.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.SqlClient;
using System.Configuration;
using System.Data;

public partial class dingdan_dingdanAdd : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            ClientInfo();
            GoodInfo();
        }
    }
    protected string sqlConString = ConfigurationManager.ConnectionStrings["LibraryConnectionString"].ToString();
    protected SqlConnection sqlCon;
    /// <summary>
    /// 检测用户是不是已经注册
    /// </summary>
    /// <returns></returns>
    protected bool CheckUser()
    {
        sqlCon = new SqlConnection(sqlConString);
        string strCmd = "select * from tb_dingdan where dingdanNumber = '" + this.TextBox1.Text.Trim() + "'";
        sqlCon.Open();
        SqlCommand sqlCmd = new SqlCommand(strCmd, sqlCon);
        SqlDataReader sqlDa = sqlCmd.ExecuteReader();

        if (sqlDa.Read())
        {
            return true;
        }
        else
        {
            sqlCon.Close();
            return true;
        }


    }
    /// <summary>
    /// 绑定数据
    /// </summary>
    protected void ClientInfo()
    {
        string sqlConString = ConfigurationManager.ConnectionStrings["LibraryConnectionString"].ToString();
        SqlConnection sqlCon = new SqlConnection(sqlConString);
        string strCmd = "select * from tb_Client";
        SqlDataAdapter sqlDa = new SqlDataAdapter(strCmd, sqlCon);
        DataSet dsBookinfo = new DataSet();

        sqlDa.Fill(dsBookinfo, "tb_Client");

        try