After hours of trying to use inline, I switched to exactly how this demo works. https://demos.telerik.com/aspnet-mvc/grid/editing-custom?_gl=1*4rmtvr*_gcl_au*MzM0MzgzMzQxLjE3Mzk2NTQ5MTg.*_ga*NzAyNTMxODYzLjE3Mzk2NTQ5MTg.*_ga_9JSNBCSF54*MTczOTcyNDMxOS4yLjEuMTczOTc1Njg5My41NC4wLjA.