c# Appsettings giving error: The name 'ConfigurationManager' does not exist in the current context
.net, c#, configurationmanager
Solution
To expand a bit, you will need to add a reference to `System.Configuration.dll` to get this to work. It's kind of misleading because the `System.Configuration` namespace also exists inside the base `System.dll`, and holds some far lesser used objects like `SettingsContext`. As a result, it seems like it really ought to work, but it doesn't. It is really confusing, and currently one of those obtuse gotchas in the .NET framework.
Fortunately, `System.Configuration.dll` is in the .NET base framework, so you only need to add a reference by right-clicking on the `References` folder in your project, clicking `Add Reference`, and then finding `System.Configuration` under the `.NET` tab.
After it has been imported into your project, don't forget to add `using System.Configuration` to the top of the code file you intend to use `ConfigurationManager` in.
Problem
At the top of my program I have the following : ``` using System.Configuration; ``` Within my code, I have the following: ``` int CompanyID = Convert.ToInt32(ConfigurationManager.AppSettings["CompanyId"] .ToString()); ``` I am getting the following error though : ``` The name 'ConfigurationManager' does not exist in the current context ``` I am not sure what I am missing.