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<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Try and wrap your SelectFeatures
call within a using statement:<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>using (</span><span lang=LT
style='font-size:10.0pt;font-family:"Courier New";color:#2B91AF'>MgFeatureReader</span><span
lang=LT style='font-size:10.0pt;font-family:"Courier New"'> <span
style='color:#010001'>fReader</span> = <span style='color:#010001'>featureService</span>.<span
style='color:#010001'>SelectFeatures</span>(<span style='color:#010001'>LeidimuResId</span>,
„FeatureName“, <span style='color:#010001'>Query</span>))<o:p></o:p></span></p>
<p class=MsoNormal><span lang=LT style='font-size:10.0pt;font-family:"Courier New"'>{<o:p></o:p></span></p>
<p class=MsoNormal><span lang=LT style='font-size:10.0pt;font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=LT style='font-size:10.0pt;font-family:"Courier New"'>}<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
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<p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:
"Tahoma","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'> mapguide-users-bounces@lists.osgeo.org
[mailto:mapguide-users-bounces@lists.osgeo.org] <b>On Behalf Of </b>Vaidas
Velutis<br>
<b>Sent:</b> August 16, 2010 6:57 AM<br>
<b>To:</b> mapguide-users@lists.osgeo.org<br>
<b>Subject:</b> [mapguide-users] featureService.SelectFeatures and memory
consumption<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span lang=EN-US>Hello, I have found that after calling
featureService.SelectFeatures , memory is not realeased. Here is my source
code:<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=LT style='font-size:
10.0pt;font-family:"Courier New";color:#2B91AF'>MgUserInformation</span><span
lang=LT style='font-size:10.0pt;font-family:"Courier New"'> <span
style='color:#010001'>userInfo</span> = <span style='color:blue'>new</span> <span
style='color:#2B91AF'>MgUserInformation</span>(<span style='color:#010001'>„Adminitrator“</span>,
<span style='color:#010001'>„admin“</span>);<o:p></o:p></span></p>
<p class=MsoNormal><span lang=LT style='font-size:10.0pt;font-family:"Courier New";
color:#2B91AF'>MgSiteConnection</span><span lang=LT style='font-size:10.0pt;
font-family:"Courier New"'> <span style='color:#010001'>siteConnection</span> =
<span style='color:blue'>new</span> <span style='color:#2B91AF'>MgSiteConnection</span>();<o:p></o:p></span></p>
<p class=MsoNormal><span lang=LT style='font-size:10.0pt;font-family:"Courier New";
color:#010001'>siteConnection</span><span lang=LT style='font-size:10.0pt;
font-family:"Courier New"'>.<span style='color:#010001'>Open</span>(<span
style='color:#010001'>userInfo</span>);</span><span lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=LT style='font-size:
10.0pt;font-family:"Courier New";color:#2B91AF'>MgFeatureService</span><span
lang=LT style='font-size:10.0pt;font-family:"Courier New"'> <span
style='color:#010001'>featureService</span> = (<span style='color:#2B91AF'>MgFeatureService</span>)<span
style='color:#010001'>siteConnection</span>.<span style='color:#010001'>CreateService</span>(<span
style='color:#2B91AF'>MgServiceType</span>.<span style='color:#010001'>FeatureService</span>);<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=LT style='font-size:
10.0pt;font-family:"Courier New";color:#2B91AF'>MgFeatureQueryOptions</span><span
lang=LT style='font-size:10.0pt;font-family:"Courier New"'> <span
style='color:#010001'>Query</span> = <span style='color:blue'>new</span> <span
style='color:#2B91AF'>MgFeatureQueryOptions</span>();<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=LT style='font-size:
10.0pt;font-family:"Courier New"'>
<span style='color:green'><o:p></o:p></span></span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=LT style='font-size:
10.0pt;font-family:"Courier New";color:blue'>double</span><span lang=LT
style='font-size:10.0pt;font-family:"Courier New"'> <span style='color:#010001'>d11</span>
= <span style='color:#010001'>X</span> - <span style='color:#010001'>prec</span>;<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=LT style='font-size:
10.0pt;font-family:"Courier New";color:blue'>double</span><span lang=LT
style='font-size:10.0pt;font-family:"Courier New"'> <span style='color:#010001'>d12</span>
= <span style='color:#010001'>Y</span> - <span style='color:#010001'>prec</span>;<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=LT style='font-size:
10.0pt;font-family:"Courier New";color:blue'>double</span><span lang=LT
style='font-size:10.0pt;font-family:"Courier New"'> <span style='color:#010001'>d21</span>
= <span style='color:#010001'>X</span> + <span style='color:#010001'>prec</span>;<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=LT style='font-size:
10.0pt;font-family:"Courier New";color:blue'>double</span><span lang=LT
style='font-size:10.0pt;font-family:"Courier New"'> <span style='color:#010001'>d22</span>
= <span style='color:#010001'>Y</span> - <span style='color:#010001'>prec</span>;<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=LT style='font-size:
10.0pt;font-family:"Courier New";color:blue'>double</span><span lang=LT
style='font-size:10.0pt;font-family:"Courier New"'> <span style='color:#010001'>d31</span>
= <span style='color:#010001'>X</span> + <span style='color:#010001'>prec</span>;<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=LT style='font-size:
10.0pt;font-family:"Courier New";color:blue'>double</span><span lang=LT
style='font-size:10.0pt;font-family:"Courier New"'> <span style='color:#010001'>d32</span>
= <span style='color:#010001'>Y</span> + <span style='color:#010001'>prec</span>;<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=LT style='font-size:
10.0pt;font-family:"Courier New";color:blue'>double</span><span lang=LT
style='font-size:10.0pt;font-family:"Courier New"'> <span style='color:#010001'>d41</span>
= <span style='color:#010001'>X</span> - <span style='color:#010001'>prec</span>;<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=LT style='font-size:
10.0pt;font-family:"Courier New";color:blue'>double</span><span lang=LT
style='font-size:10.0pt;font-family:"Courier New"'> <span style='color:#010001'>d42</span>
= <span style='color:#010001'>Y</span> + <span style='color:#010001'>prec</span>;<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=LT style='font-size:
10.0pt;font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=LT style='font-size:
10.0pt;font-family:"Courier New";color:#2B91AF'>MgWktReaderWriter</span><span
lang=LT style='font-size:10.0pt;font-family:"Courier New"'> <span
style='color:#010001'>wktReaderWriter</span> = <span style='color:blue'>new</span>
<span style='color:#2B91AF'>MgWktReaderWriter</span>();<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=LT style='font-size:
10.0pt;font-family:"Courier New";color:#2B91AF'>MgGeometry</span><span lang=LT
style='font-size:10.0pt;font-family:"Courier New"'> <span style='color:#010001'>geometry</span>
= <span style='color:#010001'>wktReaderWriter</span>.<span style='color:#010001'>Read</span>(<span
style='color:#A31515'>"POLYGON XY (("</span> + <o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=LT style='font-size:
10.0pt;font-family:"Courier New"'>
<span style='color:#010001'>d11</span>.<span style='color:#010001'>ToString</span>()
+ <span style='color:#A31515'>" "</span> + <span style='color:#010001'>d12</span>.<span
style='color:#010001'>ToString</span>() + <span style='color:#A31515'>",
"</span> +<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=LT style='font-size:
10.0pt;font-family:"Courier New"'>
<span style='color:#010001'>d21</span>.<span style='color:#010001'>ToString</span>()
+ <span style='color:#A31515'>" "</span> + <span style='color:#010001'>d22</span>.<span
style='color:#010001'>ToString</span>() + <span style='color:#A31515'>",
"</span> +<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=LT style='font-size:
10.0pt;font-family:"Courier New"'>
<span style='color:#010001'>d31</span>.<span style='color:#010001'>ToString</span>()
+ <span style='color:#A31515'>" "</span> + <span style='color:#010001'>d32</span>.<span
style='color:#010001'>ToString</span>() + <span style='color:#A31515'>",
"</span> +<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=LT style='font-size:
10.0pt;font-family:"Courier New"'>
<span style='color:#010001'>d41</span>.<span style='color:#010001'>ToString</span>()
+ <span style='color:#A31515'>" "</span> + <span style='color:#010001'>d42</span>.<span
style='color:#010001'>ToString</span>() + <span style='color:#A31515'>",
"</span> +<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=LT style='font-size:
10.0pt;font-family:"Courier New"'>
<span style='color:#010001'>d11</span>.<span style='color:#010001'>ToString</span>()
+ <span style='color:#A31515'>" "</span> + <span style='color:#010001'>d12</span>.<span
style='color:#010001'>ToString</span>() + <o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=LT style='font-size:
10.0pt;font-family:"Courier New"'>
<span style='color:#A31515'>"))"</span>);<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=LT style='font-size:
10.0pt;font-family:"Courier New";color:#010001'>Query</span><span lang=LT
style='font-size:10.0pt;font-family:"Courier New"'>.<span style='color:#010001'>SetSpatialFilter</span>(<span
style='color:#A31515'>"Geometry"</span>, <span style='color:#010001'>geometry</span>,
<span style='color:#2B91AF'>MgFeatureSpatialOperations</span>.<span
style='color:#010001'>Intersects</span>);<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=LT style='font-size:
10.0pt;font-family:"Courier New";color:#2B91AF'>MgResourceIdentifier</span><span
lang=LT style='font-size:10.0pt;font-family:"Courier New"'> <span
style='color:#010001'>ResId</span> = <span style='color:blue'>new</span> <span
style='color:#2B91AF'>MgResourceIdentifier</span>(<span style='color:#2B91AF'>„FeatureSource“</span>);<o:p></o:p></span></p>
<p class=MsoNormal><span lang=LT style='font-size:10.0pt;font-family:"Courier New";
color:#2B91AF'>MgFeatureReader</span><span lang=LT style='font-size:10.0pt;
font-family:"Courier New"'> <span style='color:#010001'>fReader</span> = <span
style='color:#010001'>featureService</span>.<span style='color:#010001'>SelectFeatures</span>(<span
style='color:#010001'>LeidimuResId</span>, „FeatureName“, <span
style='color:#010001'>Query</span>);<o:p></o:p></span></p>
<p class=MsoNormal><span lang=LT style='font-size:10.0pt;font-family:"Courier New"'>fReader.Close();<o:p></o:p></span></p>
<p class=MsoNormal><span lang=LT style='font-size:10.0pt;font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=LT>After calling this couple hundred times, i get
this error in MapGuide error log: <o:p></o:p></span></p>
<p class=MsoNormal><span lang=LT>Error: Out of memory.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=LT> bad
allocation<o:p></o:p></span></p>
<p class=MsoNormal><span lang=LT>In process manager i can see that after each
call mapguide.exe process is using more and more memory.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=LT>Is this a bug or i am doing something wrong?<o:p></o:p></span></p>
<p class=MsoNormal><span lang=LT><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=LT>Thanks.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
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