title: How to call a function written in VB from C# application
body: <p>I have a function written in vb</p>
  
  <pre><code>Public Function abc (ByVal x as Integer, ByVal y as String) As String 
  
  End Function
  </code></pre>
  
  <p>I want to call this function on click of a button in C# applcation.</p>