/// <summary>
/// Replaces the item identified by the whereClause
/// </summary>
/// <param name="items">The items to modify</param>
/// <param name="whereClause">The predicate to use</param>
/// <param name="item">The new item</param>
/// <returns>True if an item was updated</returns>
public static bool ReplaceIf(this ObservableCollection <TodoItem> items, Func <TodoItem, bool> whereClause, TodoItem item)
{
var index = items.IndexOf(whereClause);
if (index >= 0)
{
items[index] = item;
return(true);
}
return(false);
}
public TodoListEventArgs(TodoListAction action, TodoItem item)
{
Action = action;
Item = item;
}
private void OnTodoListChanged(TodoListAction action, TodoItem item) => TodoListUpdated?.Invoke(this, new TodoListEventArgs(action, item));
/// <summary> /// Saves an item to the table, calling either update or add, depending on if it exists. /// </summary> /// <param name="item">The item to be saved</param> public Task SaveTodoItemAsync(TodoItem item) => (item.Id == null) ? AddTodoItemAsync(item) : UpdateTodoItemAsync(item);