如何从web.config文件中检索connectionString? [英] How can i retrieve a connectionString from a web.config file?

问题描述

我正在用C#编写一个客户端应用程序，应该从我编写的另一个应用程序更改web.config文件中的ConnectionString设置. 我怎样才能实现这个目标?

I am writing an client application in C# which will be supposed to change ConnectionString settings in a web.config file from another application I wrote. How can I achieve this goal?

是否可以在应用程序中加载web.config文件并读取/更改其面向数据对象的方法?还是我需要像解析完整的未知" XML文件一样对其进行解析?

Is there a way to load the web.config file in my application and read/change its data object orientated? Or do I need to parse it as if beeing a complete 'unknown' XML file?

推荐答案

如果您是从其他应用程序执行此操作，则可以使用

If you're doing this from another application, you can use the VirtualDirectoryMapping class:

VirtualDirectoryMapping vdm = new VirtualDirectoryMapping(@"C:\Inetpub\wwwroot\YourApplication", true);
WebConfigurationFileMap wcfm = new WebConfigurationFileMap();
wcfm.VirtualDirectories.Add("/", vdm);


// Get the connectionString
Configuration config = WebConfigurationManager.OpenMappedWebConfiguration(wcfm, "/");
string connection = config.ConnectionStrings.ConnectionStrings["YourConnectionString"];

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