protected override bool OnViewFilter(CheckTreeItem item)
{
if (!base.OnViewFilter(item))
{
return(false);
}
var items = view.GetItems();
var self = this;
return(SlickTreeHelper.FilterCustom(item, x =>
{
if (x.ParentId == null)
{
return null;
}
if (self.byId == null)
{
self.byId = new JsDictionary <string, CheckTreeItem>();
for (var i = 0; i < items.Count; i++)
{
var o = items[i];
if (o.Id != null)
{
self.byId[o.Id] = o;
}
}
}
return self.byId[x.ParentId];
}));
}
private bool AllChildSelected(CheckTreeItem item)
{
for (int i = 0; i < item.Children.Count; i++)
{
if (!item.Children[i].IsSelected)
{
return(false);
}
}
return(true);
}
protected bool AllSubTreeSelected(CheckTreeItem item)
{
if (item.Children.Count > 0)
{
for (int i = 0; i < item.Children.Count; i++)
{
var sub = item.Children[i];
if (!sub.IsSelected)
{
return(false);
}
if (!AllSubTreeSelected(sub))
{
return(false);
}
}
}
return(true);
}
private bool SetAllSubTreeSelected(CheckTreeItem item, bool selected)
{
var result = false;
for (int i = 0; i < item.Children.Count; i++)
{
var sub = item.Children[i];
if (sub.IsSelected != selected)
{
result = true;
sub.IsSelected = selected;
view.UpdateItem(sub.Id, sub);
}
if (sub.Children.Count > 0)
{
result = SetAllSubTreeSelected(sub, selected) | result;
}
}
return(result);
}