一般处理程序+html 的CRUD

 using Console_Core.BLL;
 using Console_Core.Common;
 using Console_Core.Model;
 using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Web;
 
 namespace Web_Cassini.Day3
 {
     /// <summary>
     /// studenteidt 的摘要说明
     /// </summary>
     public class studenteidt : IHttpHandler
     {
 
         public void ProcessRequest(HttpContext context)
         {
             context.Response.ContentType = "text/html";
             string save = context.Request["save"];
             string action = context.Request["action"];
             string html = CommonHelper.GetHtmlFromVirtualPath(context, "~/Day3/studentedit.html");
             MyORM_BLL myORM_BLL = new MyORM_BLL();
 
             #region 展示
             if (string.IsNullOrWhiteSpace(save)) //展示
             {
                 if (action == "addnew")
                 {
                     html = html.Replace("@actionName", "新增").Replace("@action", "addnew").Replace("@ID", "").Replace("@USERNAME", "")
                         .Replace("@PASSWORD", "").Replace("@AGE", "").Replace("{ISRICH}", "").Replace("@PROFESSION", "")
                         .Replace("{male}", "checked").Replace("{female}", "").Replace("{both}", "");
                     context.Response.Write(html);
                 }
                 else if (action == "edit")
                 {
                     //获得id 根据id查询 验证格式
                     int id = Convert.ToInt32(context.Request["id"]);
                     TC_STUDENT tc = (TC_STUDENT)myORM_BLL.SelectModelById(typeof(TC_STUDENT), id);
                     //替换html
                     html = html.Replace("@actionName", "编辑" + tc.USERNAME).Replace("@action", "edit").Replace("@ID", tc.ID.ToString()).Replace("@USERNAME", tc.USERNAME)
                         .Replace("@PASSWORD", tc.PASSWORD).Replace("@AGE", tc.AGE.ToString()).Replace("{ISRICH}", "checked").Replace("@PROFESSION", tc.PROFESSION);
                     if (tc.GENDER == )
                     {
                         html = html.Replace("{male}", "checked").Replace("{female}", "").Replace("{both}", "");
                     }
                     else if (tc.GENDER == )
                     {
                         html = html.Replace("{male}", "").Replace("{female}", "checked").Replace("{both}", "");
                     }
                     else if (tc.GENDER == )
                     {
                         html = html.Replace("{male}", "").Replace("{female}", "").Replace("{both}", "checked");
                     }
                     else
                     {
                         CommonHelper.OutputError(context, "~/Day3/error.html", "500 INTERNET SERVER ERROR THIS GENDER:" + tc.GENDER);
                         return;
                     }
                     //输出
                     context.Response.Write(html);
                 }
                 else
                 {
                     CommonHelper.OutputError(context, "~/Day3/error.html", "404 NOT FOUND THIS ACTION:" + action);
                 }
             }
             #endregion
 
             #region 保存
             else if (save == "保存") //保存
             {
                 string USERNAME = context.Request["USERNAME"];
                 string PROFESSION = context.Request["PROFESSION"];
                 string PASSWORD = context.Request["PASSWORD"];
                 string ISRICH = context.Request["ISRICH"];
                 string GENDER = context.Request["GENDER"];
                 string AGE = context.Request["AGE"];
                 #region 验证 非空、数字格式
                 //验证 非空、数字格式
                 if (string.IsNullOrWhiteSpace(USERNAME))
                 {
                     CommonHelper.OutputError(context, "~/Day3/error.html", "500 请填写用户名");
                     return;
                 }
                 if (string.IsNullOrWhiteSpace(PROFESSION))
                 {
                     CommonHelper.OutputError(context, "~/Day3/error.html", "500 请填写专业");
                     return;
                 }
                 if (string.IsNullOrWhiteSpace(PASSWORD))
                 {
                     CommonHelper.OutputError(context, "~/Day3/error.html", "500 请填写密码");
                     return;
                 }
                 if (string.IsNullOrWhiteSpace(AGE))
                 {
                     CommonHelper.OutputError(context, "~/Day3/error.html", "500 请填写年龄");
                     return;
                 }
                 int age;
                 if (!int.TryParse(AGE, out age)) //转换不成功
                 {
                     CommonHelper.OutputError(context, "~/Day3/error.html", "500 AGE必须是数字:" + AGE);
                     return;
                 }
                 #endregion
                 //实例共同项
                 TC_STUDENT tc = new TC_STUDENT();
                 tc.USERNAME = USERNAME;
                 tc.PROFESSION = PROFESSION;
                 tc.PASSWORD = PASSWORD;
                 tc.ISRICH = ISRICH == "on" ?  : ;
                 tc.GENDER = Convert.ToInt32(context.Request["GENDER"]);
                 tc.AGE = age;
                 bool flag = false;
                 if (action == "addnew")
                 {
                     flag = myORM_BLL.InsertModel(tc, "SE_TC_STUDENT");
                 }
                 else if (action == "edit")
                 {
                     tc.ID = Convert.ToInt32(context.Request["ID"]);
                     flag = myORM_BLL.UpdateModel(tc);
                 }
                 else
                 {
                     CommonHelper.OutputError(context, "~/Day3/error.html", "404 NOT FOUND THIS ACTION:" + action);
                 }
                 if (!flag) //新增或更新失败
                 {
                     CommonHelper.OutputError(context, "~/Day3/error.html", "500 INSERT OR UPDATE 失败");
                     return;
                 }
                 context.Response.Redirect("studentlist.ashx");
             }
             #endregion
 
             else
             {
                 CommonHelper.OutputError(context, "~/Day3/error.html", "404 NOT FOUND THIS SAVE:" + save);
             }
         }
 
         public bool IsReusable
         {
             get
             {
                 return false;
             }
         }
     }
 }

ashx+html--CRUD