StudentRegister.aspx.cs

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using System;
using System.Collections.Generic;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

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

    protected void Button1_Click(object sender, EventArgs e)
    {
        if (username.Value.Trim() == "")
        {
            ScriptManager.RegisterStartupScript(this.Page, Page.GetType(), System.DateTime.Now.Ticks.ToString(), "alert('请输入学号！')", true);
        }
        else if (password.Value.Trim() == "")
        {
            ScriptManager.RegisterStartupScript(this.Page, Page.GetType(), System.DateTime.Now.Ticks.ToString(), "alert('请输入密码！')", true);
        }
        else if (PeopleName.Value.Trim() == "")
        {
            ScriptManager.RegisterStartupScript(this.Page, Page.GetType(), System.DateTime.Now.Ticks.ToString(), "alert('请输入姓名！')", true);
        }
        else if (Mobile.Value.Trim() == "")
        {
            ScriptManager.RegisterStartupScript(this.Page, Page.GetType(), System.DateTime.Now.Ticks.ToString(), "alert('请输入联系电话！')", true);
        }
        else
        {
            string xuehao = this.username.Value;
            string mima = this.password.Value;

            string xingming = this.PeopleName.Value;
            string xingbie = this.sex.Items[sex.SelectedIndex].Value;
            string nianling = this.Age.Value;
            string xueyuan = this.Xueyuan.Value;
            string zhuanye = this.Zhuanye.Value;
            string jisuanjishuiping = this.jsj.Items[jsj.SelectedIndex].Value;
            string yingyudengji = this.yingyu.Items[yingyu.SelectedIndex].Value;
            string dianhua = this.Mobile.Value;
            string beizhu = this.Intro.Value;
            string strsql = "select * from yonghu where xuehao='" + xuehao + "'";//以账号为条件查询用户䯮
            sqlConn conn = new sqlConn();
            DataSet ds = new DataSet();
            ds = conn.hsggetdata(strsql);
            if (ds.Tables[0].Rows.Count > 0)//如果存在，代表重复
            {
                ScriptManager.RegisterStartupScript(this.Page, Page.GetType(), System.DateTime.Now.Ticks.ToString(), "alert('学号已存在！')", true);
            }
            else
            {
                strsql = "Insert into yonghu(xuehao,mima,xingming,xingbie,nianling,xueyuan,zhuanye,jisuanjishuiping,yingyudengji,dianhua,beizhu,pic)values(";
                strsql += "'" + xuehao + "','" + mima + "','" + xingming + "','" + xingbie + "','" + nianling + "','" + xueyuan + "','" + zhuanye + "','" + jisuanjishuiping + "','" + yingyudengji + "','" + dianhua + "','" + beizhu + "','"+HiddenFieldPic.Value+"')";
                int result;