EasyShop/register.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 MyModels;
using ExeSql;
using System.Data;
using System.Data.SqlClient;
using BLL;
using COMM;
using conn;
namespace EasyShop
{
    public partial class register : System.Web.UI.Page, ICallbackEventHandler
    {
        public string jsString = "";
        public int ck = -1;
        protected void Page_Load(object sender, EventArgs e)
        {
            string reference = Page.ClientScript.GetCallbackEventReference(this, "args", "Success", "", "Error", false);
            string callbackscript = "function CallServer(args,context){\n" +
                reference + ";\n}";
            Page.ClientScript.RegisterClientScriptBlock(this.GetType(), "callback", callbackscript, true);

        }
        string ICallbackEventHandler.GetCallbackResult()
        {
            return ViewState["result"].ToString();
        }

        void ICallbackEventHandler.RaiseCallbackEvent(string eventArgument)
        {
            TB_MC_User tmc = new TB_MC_User();
            //tmc.UserName=eventArgument.ToString();
            tmc.LoginName = eventArgument.ToString();
            int k = tmc.GetDataByLoginName();
           if(k>0)
           {
                ViewState["result"] = "帐号已使用!";
            }
            else
            {
                ViewState["result"] = "可以使用";
            }
        }
        //public string GetCallbackResult()
        //{
        //    return ViewState["result"].ToString();
        //}

        //public void RaiseCallbackEvent(string eventArgument)
        //{
        //    string UserName = txt_UserName.Text;
        //    if (eventArgument.Equals(UserName))
        //    {
        //        ViewState["result"] = "帐号已使用!";
        //    }
        //    else