public void Do1() { GenericTest <int, string> .DoStatic(); GenericTest <bool, int> .DoStatic2(false, 42); GenericTest <bool, int> .DoStatic3(false, 42, "wow"); GenericTest <int, string> instance = new GenericTest <int, string>(); instance.DoExtension(42, "wow", '2'); Grouping <string, int> x = null; x.FirstOrDefault(1234); }
private void UpdateItem(UpdateModel updateModel) { Grouping <string, ItemPreview> currentItems = null; if (Items != null) { currentItems = Items.Where(k => k.Key == updateModel.ItemPreview.ItemType.ToPluralString()) .FirstOrDefault(); } else if (Items is null) { Items = new ObservableCollection <Grouping <string, ItemPreview> >(); } if (currentItems is null)//that means no items of that type are in list { //add new item DisplayMsg("", false);//make sure there is no msg Items.Add(new Grouping <string, ItemPreview>(updateModel.ItemPreview.ItemType.ToPluralString(), new List <ItemPreview>() { updateModel.ItemPreview })); } else if (updateModel.UpdateType == TypeOfUpdates.Create) { currentItems.Add(updateModel.ItemPreview); } else if (updateModel.UpdateType == TypeOfUpdates.Modify) {//get current item that will be modified later var itemToBeModified = currentItems.FirstOrDefault(s => s.Id == updateModel.ItemPreview.Id); if (itemToBeModified != null) { int index = currentItems.IndexOf(itemToBeModified);//get index of the item from the list currentItems.SetNewItem(index, updateModel.ItemPreview); } } else if (updateModel.UpdateType == TypeOfUpdates.Delete) { Delete(updateModel.ItemPreview.Id); } if (IsUwp) { Items = UpdateItems(Items);//update the list with itself(bug: (when updating an item it will not be displayed so i updated the current list)) } }
public static int GetPlayingSongIndexInGroup(this Grouping <IGroupKey, Mediafile> group) { return(group?.IndexOf(group.FirstOrDefault(t => t.State == Core.Common.PlayerState.Playing)) ?? 0); }