Suppressing Section in Crystal reports - crystal-reports

Question

I have a section in my report and Below is my requirement to suppress it:
If scanmode and status=null (these fileds coming from database)
then i need to suppress the section.
If it is not null then i need check next condition {Status.status} >= 3 if it is >=3 then i need to check next condition {?Stack} <> "S" .
Please suggest the logic i wrote is correct or not>If wrong please modify it
Logic i wrote:
isnull({Status.scan_mode}) and isnull({Status.status})
or
{Status.status} >= 3
or
{?Stack} <> "S"
What is my doubt is here we gave or condition for every logic will it check 1st condition,if it is true then then 2nd ,if it is true then 3rd
or it will hide the section if any one of above 3 logic's is correct.
Is there any way to convert above logic to if else condition.Can we write if else in suppress condition.If yes please tell me
Please suggest me.

Answer 1

Write below logic in supress section
If isnull({Status.scan_mode})
then
(
if isnull({Status.status}) or {Status.status} >= 3 then
(
if {?Stack} <> "S"
then
true
)
)
else false

Answer 2

if isnull({Status.scan_mode}) and isnull({Status.status}) then true
else if Scanmode = 'C' or Scanmode = 'D' then true
else if {Status.status} >= 3 or {?Stack} <> "S" then true
else false
I hope this helps