Problem
error cannot simplicity convert string to system.collection.generic.ienumerable on view of index
Details
I need to display every department and his employees following to it in tree view using jtree i downloaded from nugget in mvc 5 visual studio 2015 . as department parent and children employee
and treeviewhelper class has following function for children
my employee controller as following
my error show on view of index as following
Department model
error display on line Children(m=>m.EmployeeName) on view of index
How to solve it