DateTime在当前上下文中不存在

本文介绍了DateTime在当前上下文中不存在的处理方法，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

我有以下课程

using System; using System.Globalization; namespace GenericSomething { public class Specific : Generic { public override bool DoSomething(string date) { DateTime newDate = DateTime.ParseExact(date, "yyyyMMdd", CultureInfo.InvariantCulture); if (newDate.Date == DateTime.Now.Date) return true; else return false; } } }

当我调试并在DateTime.Now.Date上使用添加手表"时，我得到了

When I'm debugging and i use "Add watch" on DateTime.Now.Date, i get

"DateTime在当前上下文中不存在."

"DateTime does not exist in the current context."

即使日期相同，条件也永远不会得到满足.

And the condition is never satisfied even if the dates are the same.

为什么我要包含系统?

推荐答案

以下是我看到的一些内容；

Here a few things I saw;

• 您可能需要在项目中添加 mscorlib.dll 作为参考.
• 您不能与 DateTime ( newDate )和 int ( DateTime.Now.Day )进行比较使用 == 运算符.您可能需要改用 newDate == DateTime.Now .
• return 语句后，您缺少分号(; ).
• 您需要添加 System.Globalization 名称空间，用于使用 CultureInfo 类.

• You might be need to add mscorlib.dll as a reference in your project.
• You can't compare with DateTime (newDate) and int (DateTime.Now.Day) with == operator. You might need to use newDate == DateTime.Now instead.
• You are missing semi-colon (;) after your return statements.
• You need to add System.Globalization namespace for using CultureInfo class.