[mapguide-users] Usage for MgTransaction class

[Jackie Ng]

MgTransaction lets you perform multiple UpdateFeatures() and/or
ExecuteSqlNonQuery() operations against a single feature source in a single
atomic unit such that all the operations will either succeed or fail wholly.
If any exception occurs while you do these multiple calls under the same
transaction, you can rollback the MgTransaction to ensure that no partial
updates are done to your Feature Source.

You can see an example code usage in the RFC that introduced it:
http://trac.osgeo.org/mapguide/wiki/MapGuideRfc78

You can only use MgTransaction on Feature Sources whose FDO provider
supports transactions.

- Jackie



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