title: C# or SQL filtering/Sorting
body: <p>I'm trying to sort and filter Data coming in from a database either using C# or SQL. From the database I will receive two columns of data, a part number (Letter/Number) and price data (Number). e.g.</p>
  
  <p><a href="https://i.stack.imgur.com/bWI6Y.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/bWI6Y.png" alt="enter image description here"></a></p>
  
  <p>What I need is a the lowest price data from each Part number letter, so the cheapest A, cheapest B etc. The results will be put in a datagridview element.</p>
  
  <p>Thanks.</p>