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List: mapguide-users
Subject: [mapguide-users] SelectFeatures and string ID fields
From: "Warren Medernach" <wmedernach () rand ! com>
Date: 2009-11-25 23:22:32
Message-ID: 572E75B74C69A147936A4135F8D46F6002814C9B () CX42 ! 800onemail ! com
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Are there known problems using a string field as the key field in an SDF
file?
I'm trying to zoom to a filtered object, and it seems to work on an SDF
with a default integer FeatId key field, but fails when I try it on an
SDF with a string key field. The FeatureReader is always empty when I
try to get
Scenario #1 Works with an SDF with FeatId integer key
queryOptions.SetFilter("FeatId = 410");
MgResourceIdentifier featureResId = new
MgResourceIdentifier(layer.GetFeatureSourceId());
MgFeatureReader featureReader =
featureService.SelectFeatures(featureResId, layer.GetFeatureClassName(),
queryOptions);
Scenario #2 Fails with an SDF with a string key
queryOptions.SetFilter("ParcelID = '0102000'");
MgResourceIdentifier featureResId = new
MgResourceIdentifier(layer.GetFeatureSourceId());
MgFeatureReader featureReader =
featureService.SelectFeatures(featureResId, layer.GetFeatureClassName(),
queryOptions);
Any ideas greatly appreciated
Warren M
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<p class=MsoNormal>Are there known problems using a string field as the key
field in an SDF file?<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I’m trying to zoom to a filtered object, and it seems
to work on an SDF with a default integer FeatId key field, but fails when I try
it on an SDF with a string key field. The FeatureReader is always empty
when I try to get<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Scenario #1 Works with an SDF with FeatId integer \
key<o:p></o:p></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;
font-family:"Courier New"'>queryOptions.SetFilter(“FeatId = \
410”);<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;
font-family:"Courier New";color:#2B91AF'>MgResourceIdentifier</span><span
style='font-size:9.0pt;font-family:"Courier New";color:green'> </span><span
style='font-size:9.0pt;font-family:"Courier New"'>featureResId<span
style='color:green'> = </span><span style='color:blue'>new</span><span
style='color:green'> </span><span \
style='color:#2B91AF'>MgResourceIdentifier</span>(layer.GetFeatureSourceId());<span \
style='color:green'><o:p></o:p></span></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;
font-family:"Courier New";color:#2B91AF'>MgFeatureReader</span><span
style='font-size:9.0pt;font-family:"Courier New";color:green'> </span><span
style='font-size:9.0pt;font-family:"Courier New"'>featureReader =
featureService.SelectFeatures(featureResId, layer.GetFeatureClassName(),
queryOptions);<o:p></o:p></span></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Scenario #2 Fails with an SDF with a string key<o:p></o:p></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;
font-family:"Courier New"'>queryOptions.SetFilter(“ParcelID = \
‘0102000’”);<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;
font-family:"Courier New";color:#2B91AF'>MgResourceIdentifier</span><span
style='font-size:9.0pt;font-family:"Courier New"'> featureResId = <span
style='color:blue'>new</span> <span \
style='color:#2B91AF'>MgResourceIdentifier</span>(layer.GetFeatureSourceId());<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;
font-family:"Courier New";color:#2B91AF'>MgFeatureReader</span><span
style='font-size:9.0pt;font-family:"Courier New"'> featureReader =
featureService.SelectFeatures(featureResId, layer.GetFeatureClassName(),
queryOptions);<o:p></o:p></span></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Any ideas greatly appreciated<o:p></o:p></p>
<p class=MsoNormal>Warren M<b><span \
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"; \
color:black'><o:p></o:p></span></b></p>
<p class=MsoNormal><o:p> </o:p></p>
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