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How to change a relationship from 1-1 to 1-M

Question asked by tedrakel_power on May 23, 2017
Latest reply on May 24, 2017 by tedrakel_power

I'm using arc gis 10.2.1.  Is there  a programmatic way to change a relationship from 1-1 to 1-M?  I found the interface IRelClassSchemaEdit, which allows me to change the labels on the relationship, but not the cardinality.  I don't want to have to drop the relationship in arc catalog and recreate if there's a programmatic way to change it, either in c# or in python.

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