title: How to hide a column in a list, dynamically in cognos?
body: <p>Actually I'm working on Cognos 10.1 .
  I have three prompts (Value prompt) in my report. All the prompts are optional. Based on the selections I wanna show the results. Each prompt corresponds to a column in the list. If the value is chosen in the prompt, it has to show the column. Else, it has to hide the column. We should not use conditional blocks or style variables. Please help me. Thanks in advance.</p>