public ChildrenService(FilterMode filterMode, ItemFilter itemFilter, SortParameterData sortParameters)
: base(item => item.Id)
{
var sort = sortParameters.WhenValueChanged(t => t.SelectedItem)
.Select(prop => prop.Comparer);
var modeFilter = itemFilter.WhenValueChanged(t => t.TreeMode)
.Select(ModeFilter);
var searchFilter = itemFilter.WhenValueChanged(t => t.SearchText)
.Select(SearchFilter);
var childNodes = this.Connect()
.TransformToTree(item => item.ParentId)
.Transform(item =>
{
item.Item.InitializeChildNodes(item);
return(item.Item);
})
.DisposeMany()
.Filter(modeFilter)
.Filter(searchFilter)
.Sort(sort)
.Bind(this.childNodes)
.Subscribe();
this.CleanUpTarget.Add(childNodes);
}
