public async Task <KPITreeViewModel> GetListTreeForWorkplace(int userid)
{
var levels = new List <KPITreeViewModel>();
List <KPITreeViewModel> hierarchy = new List <KPITreeViewModel>();
var listLevels = await _dbContext.Levels.OrderBy(x => x.LevelNumber).ToListAsync();
var user = _dbContext.Users.FirstOrDefault(x => x.ID == userid);
var levelNumber = await _dbContext.Levels.FirstOrDefaultAsync(x => x.ID == user.LevelID);
if (levelNumber == null)
{
return(new KPITreeViewModel());
}
listLevels = listLevels.Where(x => x.LevelNumber >= levelNumber.LevelNumber).OrderBy(x => x.LevelNumber).ToList();
foreach (var item in listLevels)
{
var levelItem = new KPITreeViewModel();
levelItem.key = item.ID;
levelItem.title = item.Name;
levelItem.code = item.Code;
levelItem.state = item.State;
levelItem.levelnumber = item.LevelNumber;
levelItem.parentid = item.ParentID;
levels.Add(levelItem);
}
var itemLevel = await _dbContext.Levels.FirstOrDefaultAsync(x => x.ID == user.LevelID);
hierarchy = levels.Where(c => c.parentid == itemLevel.ParentID)
.Select(c => new KPITreeViewModel()
{
key = c.key,
title = c.title,
code = c.code,
levelnumber = c.levelnumber,
parentid = c.parentid,
children = GetChildren(levels, c.key)
})
.ToList();
HieararchyWalk(hierarchy);
var obj = new KPITreeViewModel();
foreach (var item in hierarchy)
{
if (item.key == itemLevel.ID)
{
obj = item;
break;
}
}
var model = hierarchy.Where(x => x.key == itemLevel.ID).FirstOrDefault();
return(model);
}
/// <summary>
/// Convert the nested hierarchical object to flatten object
/// </summary>
/// <param name="parent"></param>
/// <returns></returns>
public IEnumerable <KPITreeViewModel> ConvertHierarchicalToFlattenObject(KPITreeViewModel parent)
{
yield return(parent);
foreach (KPITreeViewModel child in parent.children) // check null if you must
{
foreach (KPITreeViewModel relative in ConvertHierarchicalToFlattenObject(child))
{
yield return(relative);
}
}
}
public async Task <List <KPITreeViewModel> > GetListTree()
{
var listLevels = await _dbContext.Levels.OrderBy(x => x.LevelNumber).ToListAsync();
var levels = new List <KPITreeViewModel>();
foreach (var item in listLevels)
{
var levelItem = new KPITreeViewModel();
levelItem.key = item.ID;
levelItem.title = item.Name;
levelItem.code = item.Code;
levelItem.state = item.State;
levelItem.levelnumber = item.LevelNumber;
levelItem.parentid = item.ParentID;
levels.Add(levelItem);
}
List <KPITreeViewModel> hierarchy = new List <KPITreeViewModel>();
hierarchy = levels.Where(c => c.parentid == 0)
.Select(c => new KPITreeViewModel()
{
key = c.key,
title = c.title,
code = c.code,
levelnumber = c.levelnumber,
parentid = c.parentid,
children = GetChildren(levels, c.key)
})
.ToList();
HieararchyWalk(hierarchy);
return(hierarchy);
}