Members/Register.aspx.cs

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using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;


namespace IndiaStudyChannel.Members
{
	/// <summary>
	/// Summary description for Register.
	/// </summary>
    /// 由 liudao 翻译整理
    /// 该源码下载自www.51aspx.com(５１ａｓｐｘ．ｃｏｍ)

	public partial class Register : System.Web.UI.Page
	{
	
		protected void Page_Load(object sender, System.EventArgs e)
		{
			if ( !Page.IsPostBack )
			{
				LoadCountries();
			}
		}

		#region Web Form Designer generated code
		override protected void OnInit(EventArgs e)
		{
			//
			// CODEGEN: This call is required by the ASP.NET Web Form Designer.
			//
			InitializeComponent();
			base.OnInit(e);
		}
		
		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{    

		}
		#endregion

		protected void btnSubmit_Click(object sender, System.EventArgs e)
		{
			string userid = txtUserId.Text.Replace("'","''");
			if ( IsUserExisting(userid) )
			{
				lblMessage.Text = "对不起，用户名已经存在！";
				return;
			}