C# 插入数据
 protected void ImageButton1_Click(object sender, ImageClickEventArgs e)
        {
            string username = Request["username"];
            string userpwd = Request["userpwd"];
            string drop = this.level.Text.ToString();
            string post = position.SelectedValue.ToString();
            string depa = deparment.SelectedValue.ToString();
            string usernumber = this.bianhao.Text;
            string realname = this.realname.Text;
            string xueli = this.xueli.SelectedValue.ToString();
            string zhichen = this.zhicheng.SelectedValue.ToString();
            string zhuangkuang = this.state.SelectedValue.ToString();
            string byxuexiao = this.byshool.SelectedValue.ToString();
            string XingBie = this.Sex.Text;//性别
            string MingZu = this.MZ.Text;//名族
            DateTime AddTime = DateTime.Now;
            StockClass sc = new StockClass();
            if (sc.validate(username))
            {
                Response.Write("<script>alert('用户名中不能含有非法字符');history.back()</script>");
                return;
            }
            if (sc.validate(userpwd))
            {
                Response.Write("<script>alert('密码中不能含有非法字符');history.back()</script>");
                return;
            }
            SqlConnection strcon = new SqlConnection(System.Configuration.ConfigurationManager.AppSettings["strcon"]);
            strcon.Open();
            SqlCommand scd = new SqlCommand("select * from rs_User where username='" + username + "'", strcon);
            int coun