摘要：ashx:using System;using System.Collections.Generic;using System.Linq;using System.Web;namespace AJax{ /// /// GetDate1 的摘要说明 /// public class GetDate1 : IHttpHandler { public void ProcessRequest(HttpContext context) { context.Response.ContentType = "text/plain"; string... 阅读全文

摘要：1.//弹出对话框.点击转向指定页面 Response.Write("");Response.Write("");2.//弹出对话框Response.Write("");3.//删除文件stringfilename ="20059595157517.jpg";pub.util.DeleteFile(HttpContext.Current.Server.MapPath("../file/")+filename);4.//绑定下拉列表框datalistSystem.Data.DataViewdv=c 阅读全文

摘要：asp.net最常用的三十三种编程代码1.打开新的窗口并传送参数：传送参数：response.write("")接收参数：stringa=Request.QueryString("id");stringb=Request.QueryString("id1");2.为按钮添加对话框Button1.Attributes.Add("onclick","returnconfirm(’确认?’)");button.attributes.add("onclick","if(co 阅读全文

摘要：一.读取Excel数据，并显示1.配置文件 --> --> 2.using System;using System.Configuration;using System.Data;using System.Data.OleDb;namespace WebApplication{ public partial class MyExcelToDG : System.Web.UI.Page { private readonly string SQLCONNECTIONSTRING = ConfigurationManager.AppSettings["SQLCONNECT... 阅读全文

摘要：using System; using System.Data; using System.Xml; using System.Data.SqlClient; using System.Collections; using System.Configuration;namespace BookDAL { /// /// SqlServer数据访问帮助类 /// public sealed class SqlHelper { #region 私有构造函数和方法 private SqlHelper() { } /// /// 将SqlParameter参数数组(参数值)分配给S... 阅读全文

摘要：static string sqlcon = "server=.;database=;Integrated Security=true;";/// /// 新增数据/// public static void Add(){ //string sqlcon = "server=.;database=;Integrated Security=true;"; SqlConnection conn=new SqlConnection(sqlcon); string sqlStr="insert into Boook(b_id,b_title,b_aut 阅读全文

摘要：using System;using System.Collections.Generic;using System.Text;using System.Text.RegularExpressions;namespace DotNet.Utilities{ /// /// 字符串操作类 /// 1、GetStrArray(string str, char speater, bool toLower) 把字符串按照分隔符转换成 List /// 2、GetStrArray(string str) 把字符串转 按照, 分割 换为数据 /// 3、GetArrayStr(List list, st. 阅读全文

摘要：protected void Upload() { //判断是否选择文件 if (FileUpload1.HasFile) { string fileContentType = FileUpload1.PostedFile.ContentType;//获取文件类型 //判断类型是否符合条件 if (fileContentType == "image/bmp" || fileContentType == "image/gif" || fileContentType == "image/pjpeg"||fileContentType==& 阅读全文

摘要：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;public partial class CalendarThree : System.Web. 阅读全文

摘要：如何运用内置对象session和application对象实现统计在线人数首先创建一个全局应用程序类Global.asaxprotected void Application_Start(object sender, EventArgs e) { if (Application["CountOnline"] == null) { Application["CountOnline"] = 0; } } //设置session对象，生存时间为1分钟 protected void Session_Start(object sender, EventArgs e 阅读全文