Stop Kendo From Auto-generating Grid Columns

I am nesting a kendo grid inside another kendo grid row as a 'detail' template. I'm having this extremely frustrating issue, though; Kendo seems to be auto-generating the columns f

Solution 1:

I figured it out. The issue was that I was defining my columns and other properties of the grid inside the DataSource instead of outside of it. All is working fine now.