Expected MgInvalidArgumentException is not thrown in MgFeatureQueryOptions::AddFeatureProperty() when adding an empty property name.

[jessicacao]

Expected MgInvalidArgumentException is not thrown in MgFeatureQueryOptions::AddFeatureProperty() when adding an empty property name.

Step to recur:

1. Construct a MgFeatureQueryOptions object.
   

2. Call AddFeatureProperty() with an empty string as argument.
   

Sample code:

MgFeatureQueryOptions featQueryOpt = new MgFeatureQueryOptions();

MgInvalidArgumentException expected.

featQueryOpt.AddFeatureProperty("");

Expect result: MgInvalidArgumentException

Actual result: No exception thrown

[trevorwekel]

Patch submitted by Jessica Cao

​http://trac.osgeo.org/mapguide/changeset/2697