Save Event using join query

Hi

if i am not using the join query in the connector, it will save fine.

If i using the join query event does not save.
what mistake i made.

i am using dhtmlxconnector for .net

Connector can’t generated automatic insert|update|delete operations for complex sql queries, but it provides a way to define your custom update logic in such cases

docs.dhtmlx.com/doku.php?id=dhtm … ex_updates