title: How to add an existing project to a current solution programmatically in visual studio 2010 using c#
body: <p>How to add an existing project to a current solution programmatically in <strong>Visual Studio 2010</strong> using <strong>C#</strong>. I am new to <strong>C#</strong>.</p>
  
  <p>Please suggest a way to do this.</p>
  
  <p><strong>Edit</strong>: It is an assignment to do some automation.</p>