public override async void Execute(object parameter)
{
JsonObject obj = this.Data.JsonObject;
await obj.TreatAsJson();
_tree.SelectItem(obj.ViewObject).IsExpanded = true;
if (obj.AllChildren.Count <= 10)
{
_tree.ExpandSubtree(obj.ViewObject, int.MaxValue);
}
}
internal void ApplyExpandRule(CustomTreeView tree)
{
if (_expandByRules == null)
{
_expandByRules = new SingularAction(tree.Dispatcher);
}
FileLogger.Assert(_expandByRules.Dispatcher == tree.Dispatcher);
bool expandedSomething = false;
_expandByRules.BeginInvoke(
System.Windows.Threading.DispatcherPriority.Background,
async(actionId, action) =>
{
foreach (JsonObject jsonObj in this.AllChildren)
{
int?depth = jsonObj.Rules.ExpandChildren;
if (depth.HasValue)
{
tree.ExpandToItem(jsonObj.ViewObject);
tree.ExpandSubtree(jsonObj.ViewObject, depth.Value);
expandedSomething = true;
}
if (!await action.YieldAndContinue(actionId))
{
return(false);
}
}
if (!expandedSomething)
{
tree.ExpandAll(this.ExpandLevelWithLessThanCount(50));
}
return(true);
});
}