public IActionResult GetSubjectTree(int?id)
{
if (id == null)
{
return(NotFound("Parrent category are not found!"));
}
SubjectTreeDto model = RecursionTree(id);
if (model == null)
{
return(NotFound("Parrent category are not found!"));
}
JsonResult TMP = Json(model);
JsonResult tmp2 = TMP;
List <SubjectTreeDto> modelList = new List <SubjectTreeDto> {
model
};
return(Json(modelList));
}
private SubjectTreeDto RecursionTree(int?id)
{
TicketSubject rootE = _context.Set <TicketSubject>()?.Find(id);
if (rootE == null)
{
return(null);
}
SubjectTreeDto root = new SubjectTreeDto
{
ParentId = rootE.ParentId, Text = rootE.TicketSubjectName
};
List <int> children =
_context.Set <TicketSubject>()
?.GetAll()
?.Where(t => t.ParentId == id)
?.Select(s => s.TicketSubjectId)
?.ToList();
if (children.Count() > 0)
{
for (int i = 0; i < children.Count(); i++)
{
root.nodes.Add(RecursionTree(children.ElementAtOrDefault(i)));
}
}
else
{
root.nodes = null;
}
return(root);
}