title: Search Combo Box like Google Search
body: <p>I am making a Windows Form in that I have A combo box, Into which i have loaded some 'Invoice Numbers', from SQL server 2010.
  I want to Display Invoice Numbers as the User types into the Combo box.
  For eg if User types '100' then the Invoice Numbers Starting with '100' should be displayed in the dropdown.</p>
  
  <p>Please Help,
  Thanks in Advance...</p>