https://www.dotnetzone.gr:443/cs/blogs/abekiaris/archive/2010/08/16/contolling-devexpress-xtragrid-part-2-master-detail.aspxThis is a sneak peak for eXpand v10 We have control trhough model all of the options of GridView as shown at  Controlling DevExpress AspxGridControl at runtime   eXpand had already a very simple implementation of master detail but did not supportelCommunityServer 2.1 SP3 (Build: 20423.1)