How to read a user environment variable in C#?

How can I read a user specific environment variable? I know how to get a system wide one, like

Environment.GetEnvironmentVariable("SOMETHING开发者_StackOverflow中文版");

Thanks in advance!

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Use the other overload of the Environment.GetEnvironmentVariable Method that lets you specify the EnvironmentVariableTarget.

Environment.GetEnvironmentVariable(variable, target);

target can be:
EnvironmentVariableTarget.Process,
EnvironmentVariableTarget.User,
EnvironmentVariableTarget.Machine.

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It's the same method, just set the second parameter to be User as:

System.Environment.GetEnvironmentVariable("varName", EnvironmentVariableTarget.User);

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Use second overload of GetEnvironmentVariable which let's you specify EnvironmentVariableTarget.

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var UserName = Environment.GetEnvironmentVariable("username");