title: Finding substring in Formula in Crystal report
body: <p>I need to check for the existance of a substring in a formula and remove it. 
  Can someone please suggest a work-around for that. 
  Currently I'm having a formula that joins the user input into comma seperated string. My requirment is to check if this formula contains "All" and if so remove it.</p>
  
  <p>Please advice.</p>
  
  <p>Thanks.</p>