How to hide the field and field text in cryatal report based on a condition?

See more:

C#2.0

C#

ASP.NET

CrystalReports

How to hide the field and field text in cryatal report based on a condition?

I am using the formula field as follows

by checking supress box and then applying formula field as below

if {FETCH_SALARY_RELEASED_DETAILS;1.Mode}="" then
        false //hide
    else
        true //do not hide

But its not working. We are using Crystal Report Version 10.6.