public IActionResult DepartmentofSubDepartment(int departmentId)
{
ViewModels.DepartmentViewModel viewModel = new ViewModels.DepartmentViewModel();
viewModel.SubDepartments = (IEnumerable <SubDepartment>)_DepartmentData.GetSubDepartmentByDepartmentId(departmentId);
viewModel.DepartmentOfSub = _DepartmentData.GetDepartmentById(departmentId);
return(View(viewModel));
}