public JsonResult Get()
{
List <Location> locations = new List <Models.Entities.Location>();
//List<Models.DTO.Location> records;
//using (ApplicationDbContext context = new ApplicationDbContext())
//{
// locations = context.Locations.ToList();
// records = locations.Where(l => l.ParentID == null).OrderBy(l => l.OrderNumber)
// .Select(l => new Models.DTO.Location
// {
// id = l.ID,
// text = l.Name,
// @checked = l.Checked,
// population = l.Population,
// flagUrl = l.FlagUrl,
// children = GetChildren(locations, l.ID)
// }).ToList();
List <Models.DTO.Location> resultNodes = new List <Models.DTO.Location>();
//new the first level nodes
int firstLevelNodesNum = 300;
for (int i = 0; i < firstLevelNodesNum; i++)
{
var tmpLocation = new Models.DTO.Location();
tmpLocation.@checked = false;
tmpLocation.id = i + 1;
tmpLocation.hasChildren = true;
tmpLocation.text = i.ToString();
if (tmpLocation.id < 150)
{
tmpLocation.children = GenerateSecondLevelChildenNodes(tmpLocation, firstLevelNodesNum, false);
tmpLocation.@checked = false;
}
else
{
tmpLocation.children = GenerateSecondLevelChildenNodes(tmpLocation, firstLevelNodesNum, true);
tmpLocation.@checked = true;
}
resultNodes.Add(tmpLocation);
}
resultNodes = resultNodes.OrderByDescending(x => x.@checked == true).ToList();
return(this.Json(resultNodes, JsonRequestBehavior.AllowGet));
}
/// <summary>
/// generate the third level nodes, default nodes number is 3;
/// </summary>
/// <param name="secondLevelNode"></param>
/// <param name="childNumber"></param>
/// <returns></returns>
private List <Models.DTO.Location> GenerateThirdLevelChildenNodes(Models.DTO.Location secondLevelNode, int firstLevelNodesNum, int secondLevelPerNodeNum, bool selected, int childNumber = 3)
{
if (secondLevelNode == null)
{
return(null);
}
List <Models.DTO.Location> thirdLevelNodes = new List <Models.DTO.Location>();
int idStart = firstLevelNodesNum * secondLevelPerNodeNum + 1;
for (int i = 0; i < childNumber; i++)
{
Models.DTO.Location tmpLocation = new Models.DTO.Location();
tmpLocation.id = idStart + i;
tmpLocation.text = tmpLocation.id.ToString();
tmpLocation.@checked = selected;
tmpLocation.children = null;
tmpLocation.hasChildren = false;
thirdLevelNodes.Add(tmpLocation);
}
return(thirdLevelNodes);
}
private List <Models.DTO.Location> GenerateSecondLevelChildenNodes(Models.DTO.Location firstLevelNode, int firstLevelNodesNum, bool selected, int childNumber = 3)
{
if (firstLevelNode == null)
{
return(null);
}
List <Models.DTO.Location> locations = new List <Models.DTO.Location>();
int idStart = firstLevelNodesNum + 1;
for (int i = 0; i < childNumber; i++)
{
Models.DTO.Location node = new Models.DTO.Location();
node.id = firstLevelNode.id + firstLevelNodesNum;
node.text = node.id.ToString();
node.hasChildren = true;
node.children = GenerateThirdLevelChildenNodes(node, firstLevelNodesNum, childNumber, selected);
locations.Add(node);
}
return(locations);
}
