title: Prevent Visual Studio from trying to parse typescript
body: <p>Working on a project using Visual Studio as my IDE. It has an API component written in C#, and a webserver component that uses TypeScript. </p>
  
  <p>I am using webpack to deal with the typescript compilation and would like to remove the Visual Studio build step from the typescript files. </p>
  
  <p>Normally I wouldn't care if it was building them, but I am using Typescript > 1.8.4 which has language features that Visual Studio cannot understand which is making Visual Studio throw errors and prevent compilation. I found a workaround for this in <a href="https://github.com/Microsoft/TypeScript/issues/8518" rel="noreferrer">this github issue thread</a> but I have other developers cross team who are working on this and trying to coordinate a hack to make code among them will not work. </p>
  
  <p>I have also tried removing the typescript imports line from the .csproj file, but whenever I add a new ts file, it adds the line back in. </p>
  
  <p>Is there a way to completely shut down the typescript compilation/parsing step in Visual Studio and prevent it from coming back?</p>
  
  <p>This in in VS 2015.</p>