I am trying to run a linqpad query, but one of the default namespace imports has a type that is apparently shadowing the type I am trying to reference. System.Xml is one of the default imports in linqpad, but I rarely use it. Is it possible to remove that default namespace import, so I can use my own Formatting enum?
This isn't a direct answer to your immediate question, but you can can tell LINQPad which one you want Formatting to mean. In your query, press the F4 key and then under the Additional Namespace Imports tab you can add the following:
Formatting = Newtonsoft.Json.Formatting
This tells LINQPad to declare a using alias directive for your script. Note that you should not include the word using before the line, LINQPad handles theat for you.
来源：https://stackoverflow.com/questions/25042266/can-i-remove-a-namespace-import-from-a-linqpad-query