When print right rectangle display on left side when make visability

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C#5.0

RDLC

.NET4.5

reporting

, +

I work in windows form vs 2015 Microsoft report rdlc

I added two rectangle on body section

1- left center

2- right center

when print report i see rectangle on right display on left side

IF I set visibility as below

when valueprint parameter =1

show right rectangle only and hide left rectangle by assign expression

=IIF(Parameters!ValuePrint.Value=1,False, True)
when valueprint parameter =2
show left rectangle only and hide right rectangle by assign expression

=IIF(Parameters!ValuePrint.Value=1,False, True)

Result of above

visibility working

but show right rectangle on design on left side when print

and this actually my problem

How display every rectangle on fixed position as my design when assign visibility ?

What I have tried:

when print right rectangle display on left side when make visability