[CoolVBA]

I'm using a Word OCX control to display document, and need toggle the
document display between merged and unmerged status, the VBA code seems as
below:

.mailmerge.opendatasourece(...)
.mailmerge.suppressblanklines = true

if ...
.mailmerge.viewmergefieldcodes = true
else
.mailmerge.viewmergefieldcodes = false
end if

After the above scripts run, I found the blank lines were never been
suppressed while empty fields existed, I know the .Execute() method can
suppress the blank lines, but it will permanently convert the doucment, it's
not what I wanted.