When I then try to edit the "AllergeenType" with the editortemplate i get the following error:
In chrome: Uncaught TypeError: undefined has no properties
In firefox: can't convert undefined to object
In IE11: (translate from dutch to english) Can't find object template from not defined empty value.(something like that)
where thisismyclienttemplate is the string i filled in my clienttemplate, but i dont really see whats wrong with that, my clienttemplate shows up as it supposed to, but when i click the cell i get that error and my editortemplate doesn't show up.
I've solved my own question, in my case it is because i used jQuery 1.7.1 and not 1.9.1 (why 1.7.1 is in the telerik package i don't know...) When using jQuery 1.9.1 all works well.
So when you see allot of function undefined and such look at this dependencies: