title: removing column and rows from DataTable using Linq
body: <p>I have a DataTable as an input which contains many columns and rows,</p>
  
  <p>this is a sample table:</p>
  
  <p><img src="https://i.stack.imgur.com/RO4xC.png" alt="Input"></p>
  
  <p>I want get only the column Weather(sunny rows) with the column Play (any value)</p>
  
  <p>so the output can be another DataTable like this:</p>
  
  <p><img src="https://i.stack.imgur.com/zJEaH.jpg" alt="Output"></p>
  
  <p>So any idea can help me a lot, thank you :)</p>