.MainTableDataSource(dataSource =>
            {
                dataSource.SqlDataReader(...

string fileNameExisting = @"c:\Test.pdf";
string fileNameNew = @"c:\newform.pdf";

Some of it, though, has to be attributed to the fact that Microsoft isn't a big company... it's a dozen big companies. And it's not a dozen big companies, but thousands of small companies. As an individual contributor in particular it's easy to pretend that the company is your project, or your group, and ignore the other 90 thousand people.

// in RegisterRoutes -> Global.asax.cs
routes.IgnoreRoute("{*js}", new { js = @".*\.js(/.*)?"});
routes.IgnoreRoute("{*css}", new { css = @".*\.css(/.*)?"});