async Task OnStateInitHandler(TreeListStateEventArgs <TreeListItemDto> args)
{
var localStorage = await LocalStorage.GetItemAsync <TreeListState <TreeListItemDto> >("TreeListExample");
if (null == localStorage)
{
Log.Warning("Empty state");
localStorage = new TreeListState <TreeListItemDto>()
{
//collapse all items in the TreeList upon initialization of the state
ExpandedItems = new List <TreeListItemDto>()
};
}
Log.Warning($"Tree State {localStorage.ExpandedItems.Count()}");
args.TreeListState = localStorage;
}
async Task OnStateChangedHandler(TreeListStateEventArgs <TreeListItemDto> args)
{
var state = args.TreeListState;
await LocalStorage.SetItemAsync("TreeListExample", state);
}
