Currently the default model binding of Kendo assumes that enums will be serialized as numbers. While this is the case with the default MVC JSON serializer, there are a number of problems with it (including this poor handling of enums) that make people replace the default JSON MVC serializaer with other popular ones - such as the https://github.com/JamesNK/Newtonsoft.Json.
If would be really nice if Kenod datasources could be able to map enum values in both integer and string value name format and if they were binding back the same format returned in the request.