In our Replace Server Behaviors with DMXzone Extensions Part 2 article we spoke about the technologies used back in the days for user authentication. On Wednesday, we improved two key extensions, which are used to replace this old approach. HTML5 Form Validator and DMXzone Database Connector PHP/ASP/ASP.NET are exactly what you need to forget about "check new username" server behavior and verify that the requested username is not already in the data source, in a more modern way. So make sure to check out the video below and learn how to check if a record exists in a database before insert.
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