.NET 4.5 Framework 上不存在 ConfigurationManager 类 [英] ConfigurationManager Class not exist on .NET 4.5 Framework

问题描述

我刚开始使用 C# 的 .NET Framework 4.5.正在使用 Windows 窗体应用程序.我已经完成了所需的导入，例如:

I just start working with .NET Framework 4.5 of C#. Am using Windows Form Application. I have do the needed imports such as :

using System.Configuration;

但实际上 ConfigurationManager 类似乎并没有退出.我曾尝试改用 ConfigurationSettings ，但 Visual Stdio 告诉我它已过时并被 ConfigurationManager 取代！

But actually the ConfigurationManager class seems that it is not exits. I have tried to use ConfigurationSettings instead , but Visual Stdio telling me that it is obsolete and replaced by ConfigurationManager !

这是与问题相关的代码块:

This is chunk of code related to the problem :

Int32.Parse StartingMonth = int.parse(ConfigurationManager.AppSettings["StartingMonthColumn"]);

那么，你能帮我吗?

推荐答案

1. 确保将 System.Configuration.dll 添加到项目中.如果您已添加，请尝试删除并重新添加.
2. 将光标放在 ConfigurationManager 上，然后按 ctrl+.，看看它给你什么建议.

1. Make sure that you add System.Configuration.dll to the project. If you already added it, try to remove and add it again.
2. Put the cursor on ConfigurationManager then press ctrl+., and see what it suggests you.

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