WebSite/User/AddUser.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 Entities;


public partial class User_AddUser : SdaiBuyPage 
{
    protected void Page_Load(object sender, EventArgs e)
    {
        lblError.Text = "";
    }
    protected void btnAddUser_Click(object sender, EventArgs e)
    {
        User[] aUsers = Gateways.SdaiBuy.From<Entities.User>().Where(Entities.User._.UserName == tbName.Text.Trim()).ToArray<Entities.User>();
        if (aUsers.Length > 0)
        {
            lblError.Text = "用户名已存在";
        }
        else
        {
            Entities.User aUser = new Entities.User();
            aUser.UserName = tbName.Text.Trim();
            aUser.Password = tbPassword.Text;
            aUser.College = ddlCollege.SelectedValue;
            aUser.dorm = ddlDorm.SelectedValue;
            aUser.HeadPic = "UpFile/UserFace/noname.jpg";
            int UserID = Gateways.SdaiBuy.Save<Entities.User >(aUser);

            Response.Redirect("Registerok.aspx?UserID=" + UserID);
        }
    }
    protected void tbName_TextChanged(object sender, EventArgs e)
    {
    }
}