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<DIV dir=ltr align=left><SPAN class=905130516-03112006><FONT face=Arial
color=#0000ff size=2>Hi Greg,</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=905130516-03112006><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=905130516-03112006><FONT face=Arial
color=#0000ff size=2>Many named collections in MapGuide do not allow
duplicates because the name is used as a key. MgLayerCollection and
MgGroupCollection which are part of MgMap do not allow duplicates. This
might be the cause of the exception your are seeing. Do all of your layers
and groups have unique names?</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=905130516-03112006><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=905130516-03112006><FONT face=Arial
color=#0000ff size=2>Another place to check is the feature properties.
Feature property names may also be expected to
be unique.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=905130516-03112006><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=905130516-03112006><FONT face=Arial
color=#0000ff size=2>Hope this helps,</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=905130516-03112006><FONT face=Arial
color=#0000ff size=2>Trevor</FONT></SPAN></DIV><BR>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left>
<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>From:</B> Knight, Gregory
[mailto:Gregory.Knight.bra@cityofboston.gov] <BR><B>Sent:</B> Thursday, November
02, 2006 2:52 PM<BR><B>To:</B> users@mapguide.osgeo.org<BR><B>Subject:</B>
NamedCollection reference<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV class=Section1>
<P class=MsoNormal><FONT face="Trebuchet MS" size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Trebuchet MS'">I am getting the following
error when loading a mg page that retrieves feature properties from a selected
feature.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Trebuchet MS" size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Trebuchet MS'"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Trebuchet MS" size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Trebuchet MS'">Duplicate object.Duplicate
object. Exception occurred in method CheckDuplicate at line 491 in file
c:\build_tux_area\mgdev_opensource\common\service\data\NamedCollection.cpp
<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Trebuchet MS" size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Trebuchet MS'"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Trebuchet MS" size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Trebuchet MS'">How do I go about
troubleshooting this?<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Trebuchet MS" size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Trebuchet MS'"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Trebuchet MS" size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Trebuchet MS'">Greg
Knight<o:p></o:p></SPAN></FONT></P></DIV>
<P>
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