[mapguide-users] Selection Limit?

[Nickthetemp]

I tried the GenerateFilters method, but it is not a valid method for mge
2010. 

It just gave a warning saying it was not a valid method.

If there is a way to limit the selection to approx 200 items, it would also
solve my prob.

I know in mge 2009, There was a selection size varible in the
serverconfig.ini file but it is no longer present in mge 2010.



Mauricio Villablanca wrote:
> 
> I noticed $selection2->GenerateFilter($layer, $layerClassName) doesn't
> always generate a valid filter in MGE2009. Use GenerateFilters instead
> 
> Check my post in the "Problem with MgSelection's SelectedFeatures" thread
> started by Tom Lazo for selecting features.
> 
> 
> Nickthetemp wrote:
>> 
>> Hello
>> 
>> I am using the following code to read through a selection and grab a 7
>> digit number, which is then put into an array:
>> 
>>             $layerClassName = $layer->GetFeatureClassName();
>>             $selectionString = $selection2->GenerateFilter($layer,
>> $layerClassName);
>> 
>>             // Get the feature resource for the selected layer
>> 
>>             $layerFeatureId = $layer->GetFeatureSourceId();
>>             $layerFeatureResource = new
>> MgResourceIdentifier($layerFeatureId);
>> 
>>             // Apply the filter to the feature resource for the selected
>> layer. This returns
>>             // an MgFeatureReader of all the selected features.
>> 
>>             $queryOptions->SetFilter($selectionString);
>>             $featureReader =
>> $featureService->SelectFeatures($layerFeatureResource, $layerClassName,
>> $queryOptions);
>> 
>>             // Process each item in the MgFeatureReader, displaying the
>> PID
>> 			
>> 			while ($featureReader->ReadNext())
>>             {
>>               $valArray[$counter] = $featureReader->GetInt32('PID');
>>               $counter = $counter + 1;
>>             }
>> 
>> The code works fine until I hit a larger selection number. Is there a
>> limit on the number of features that can be selected from a database?
>> 
>> I get the following error when the selection is big:
>> 
>> An exception occurred in FDO component. RDBMS: [IBM][CLI
>> Driver][DB2/LINUX] SQL0010N The string constant beginning with ""MAPI"
>> does not have an ending string delimiter. SQLSTATE=42603
>> 
>> Any help would be appreciated
>> 
>> Nick
>> 
> 
> 

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