随笔分类 - C#

获取一串字符串结尾的数字(如果结尾为非数字,则返回0)

摘要：public decimal GetStringLastNumber(string str) { decimal result = 0; if (str != null && str != string.Empty) { Match match = Regex.Match(str, @"(^.+?)(\d+$)"); if(match.Success) { result = decimal.Parse(match.Groups[2].Value); } } return result; } 阅读全文

posted @ 2012-11-15 15:47 therockthe 阅读(978) 评论(0) 推荐(0) 编辑

用Reactive Extension实现异步方法超时的操作

摘要：Actionaction=newAction(()=>{Thread.Sleep(5000);});varAsync=Observable.FromAsyncPattern(action.BeginInvoke,action.EndInvoke);Observable.Timeout(Async.Invoke(),DateTimeOffset.Now.AddSeconds(3)).ObserveOnDispatcher().Subscribe(it=>{MessageBox.Show("执行完毕");},ex=>{MessageBox.Show(" 阅读全文

posted @ 2012-07-10 15:49 therockthe 阅读(350) 评论(0) 推荐(0) 编辑

WPF 窗体中获取键盘和鼠标无操作时的超时提示

摘要：通过调用Windows API中的GetLastInputInfo来获取最后一次输入的时间usingSystem;usingSystem.Collections.Generic;usingSystem.Linq;usingSystem.Text;usingSystem.Windows;usingSystem.Windows.Controls;usingSystem.Windows.Data;usingSystem.Windows.Documents;usingSystem.Windows.Input;usingSystem.Windows.Media;usingSystem.Windows.M 阅读全文

posted @ 2012-02-12 18:15 therockthe 阅读(1928) 评论(2) 推荐(3) 编辑