C# .NET 4.5 Framework 上不存在 ConfigurationManager 类
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ConfigurationManager Class not exist on .NET 4.5 Framework
提问by Hatem
I just start working with .NET Framework 4.5 of C#. Am using Windows Form Application. I have do the needed imports such as :
我刚开始使用 C# 的 .NET Framework 4.5。正在使用 Windows 窗体应用程序。我已经做了所需的进口，如：
using System.Configuration;
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 I have tried to use ConfigurationSettings instead , but Visual Stdio telling me that it is obsolete and replaced by ConfigurationManager !
但实际上 ConfigurationManager 类似乎并没有退出。我曾尝试使用 ConfigurationSettings 代替，但 Visual Stdio 告诉我它已过时并被 ConfigurationManager 取代！
This is chunk of code related to the problem :
这是与问题相关的代码块：
Int32.Parse StartingMonth = int.parse(ConfigurationManager.AppSettings["StartingMonthColumn"]);
So , could you please help me ?
那么，你能帮帮我吗？
回答by Ekk
- Make sure that you add
System.Configuration.dllto the project. If you already added it, try to remove and add it again. - Put the cursor on
ConfigurationManagerthen press ctrl+., and see what it suggests you.
- 确保您添加
System.Configuration.dll到项目中。如果您已经添加了它，请尝试删除并再次添加。 - 把光标放在上面，
ConfigurationManager然后按ctrl+ .，看看它给你什么建议。
回答by Hatem
It is because of reference , I just restarted the project after adding the reference and it is working OK :)
这是因为引用，我在添加引用后刚刚重新启动了项目，它工作正常:)
回答by Ramendra
ConfigurationManager is present in System.Configuration namespace but it need System.Configuration assembly in your project.
ConfigurationManager 存在于 System.Configuration 命名空间中，但它需要在您的项目中使用 System.Configuration 程序集。
回答by Shalom Segev
RightClick on project -> Add-> Reference...-> Assemblies-> Framework Select the System.Configuration (checked) Should solve the problem.
右键单击项目-> 添加-> 引用...-> 程序集-> 框架 选择 System.Configuration（选中） 应该可以解决问题。
回答by Chamath Viduranga
If you are unable to find the reference here is the correct path
如果你找不到参考这里是正确的路径
"C:\Windows\Microsoft.NET\assembly\GAC_MSIL\System.Configuration\v4.0_4.0.0.0__b03f5f7f11d50a3a"
“C:\Windows\Microsoft.NET\assembly\GAC_MSIL\System.Configuration\v4.0_4.0.0.0__b03f5f7f11d50a3a”
Go to the Add reference and select the browser option and go to the above link. Then you can add the System.Configuration.dll
转到添加引用并选择浏览器选项并转到上面的链接。然后你可以添加 System.Configuration.dll
