Hi jwat,

Thanks for your feedback.

As for the layout mentioned before, I can explain it to you.

There is two layout modes in ReportViewer, one is normal layout, another is
print layout.

When using the normal layout, the ReportViewer will simply render the
report without taking the PageSettings.HardMarginX and
PageSettings.HardMarginY into consideration .   But in print layout, the
ReportViewer will check the page setting and render the page preview as you
like.

There is a button named "Print Layout" in the top toolbar of the
ReportViewer, during the runtime, you can change the layout mode by
clicking  it, when the button is pressed, the mode will be changed to Print
layout, and now you can watch the preview of what you will get.

Besides this , there is another button named "PageSetup", you can set the
page margin inside it. And printlayout will show out this margin setup in
time.

However, the printer hard margin will add with this page setup margin to
get the final result. So I suspect your real concern is how to show this
hard margin with PageSetup margin to get the real print result effect, yes?
If so, I think ReportViewer design does not take printer hard margin into
preview consideration.

I suggestion submit this issue as a bug report to the link below:
http://lab.msdn.microsoft.com/ProductFeedback/

Our product will work with you directly. If you got any useful feedback.
Please feel free to feedback here to share with the community.

Hope this helps

Best regards,
Jeffrey Tan
Microsoft Online Partner Support