如果日期时间大于/大于30分钟，如何执行操作

本文介绍了如果日期时间大于/大于30分钟，如何执行操作的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述 我有一个标签，可以获得返回值作为日期时间。 i想要陈述一个条件，如果日期时间是，则查看时间并执行操作超过/大于30分钟，如下面的代码所示。 谢谢。 我尝试了什么：i have a label that get a returned value as datetime.i want to state a condition that will look at the time and perform an action if the datetime is more than/greater than 30 min as show in the code below.thank you.What I have tried:lblCompletedLastTime.Text ="Last Completed at "+ dt.Rows[0]["Last_TimeCompleted"].ToString(); // this gets the datetime from the database and returns it to the label if (lblCompletedLastTime.Text > 30min)// if the returned datetime is greater than 30min { to do xxxxxx }推荐答案假设你的意思如果时间超过30分钟前 ，假设您将数据库中的值存储为 datetime 或 datetime2 ，则这样的事情应该有效：Assuming you mean "if the time is more than 30 minutes ago", and assuming you're storing the value in the database as either datetime or datetime2, then something like this should work:DateTime lastCompleted = (DateTime)dt.Rows[0]["Last_TimeCompleted"];lblCompletedLastTime.Text = string.Format("Last Completed at {0}", lastCompleted);if (lastCompleted.ToUniversalTime().AddMinutes(30) < DateTime.UtcNow){ // Perform the action...}存在 TimeSpan 结构正是你所需要的：There exists the TimeSpan structure which is exactly what you need:DateTime completedOn = dt.Rows[0]["Last_TimeCompleted"];TimeSpan elapsed = DateTime.Now - completedOn;if (elapsed.TotalMinutes > 30){ // TODO} 如您所见，您可以减去两个 DateTime 结构并获得 TimeSpan 表征它们之间时差的结构。 亲切。As you can see, you can subtract two DateTime structures and get a TimeSpan structure characterizing the time-difference between them.Kindly. 这篇关于如果日期时间大于/大于30分钟，如何执行操作的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！