C#中ISpostback
响应客户端控件时ispostback为true
代码:
using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; public partial class DateShow : System.Web.UI.Page { string date; protected void Page_Load(object sender, EventArgs e) { if (date == null) { date = DateTime.Now.ToString(); } Response.Write("当前时间:"+ date); if (!IsPostBack) { Response.Write("第一次加载!"); } else { Response.Write("响应客户端请求加载"); } } }
刷新结果为第一次加载
点击button结果为响应客户端请求加载。