title: How to get jqgrid row index by some column value?
body: <p>I want to get jqgrid row id by some column value.</p>
  
  <p>Example: i have one column called 'example_id' and i need jqgrid row id given that random 'example_id'.
  Is that possible?</p>
  
  <p>note: i don't click on the table, it's a parameter passed by url</p>