public static class Extensions{
public static void Dump(this T o) { }
public static void Dump(this T o, string s) { }}
These line
It's not a dll for LINQPad - you need to reference the LINQPad.exe itself.
Right-click your project in Visual Studio -> Add Reference -> Browse to the exe binary file location, typically found in its install directory C:\Program Files\LINQPad\ --> select LINQPad.exe.
Once done, then you can add a "using directive" for it in your file:
using System.Diagnostics;
using System.IO;
using LINQPad;
The method LINQPad.Util.CreateXhtmlWriter will now be available for you to use.