/// <summary> /// Adds a new list. It is important to note that because there is no enforcement of /// data consistency in the context, the app must understand the data and enforce it. /// </summary> /// <param name="modelList">The model list to add</param> public void AddList(ModelList modelList) { // Extract the service entity from the model entity DefaultScope.List newList = modelList.List; // Simple argument checking if (null == newList) { throw new ArgumentNullException("newList"); } if (newList.ID == null) { throw new ArgumentNullException("List id is null"); } // Do a LINQ query to verify that the list can be added. Current constraints // are unique id and unique name. DefaultScope.List existingList = (from s in context.ListCollection where s.ID == newList.ID || s.Name == newList.Name select s).FirstOrDefault(); if (existingList != default(List)) { throw new ArgumentException("List with the same id already exists"); } // Add the list to the context. context.AddList(newList); }
/// <summary> /// Constructor which takes the parent list for a new item /// </summary> /// <param name="list">Parent list for an item</param> public ModifyItemChildWindow(ModelList list) { InitializeComponent(); item = ContextModel.Instance.GetNewItem(list); NewItem = true; this.Loaded += new RoutedEventHandler(ItemModifyChildWindow_Loaded); }
public ModifyListChildWindow(DefaultScope.List scopeList) { InitializeComponent(); list = ContextModel.Instance.GetList(scopeList); NewList = true; this.Loaded += new RoutedEventHandler(NewListChildWindow_Loaded); }
/// <summary> /// Gets a new model item for creating an item. Takes the /// parent list /// </summary> /// <param name="list"></param> /// <returns></returns> public ModelItem GetNewItem(ModelList list) { // This method requires the parent list and the user id // to ensure that referential integrity is maintained Item item = new Item() { ID = Guid.NewGuid(), UserID = UserID, ListID = list.List.ID }; return(new ModelItem(item, context)); }
public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture) { if (value == null) { return(null); } Model.ModelItem srcItem = value as Model.ModelItem; if (srcItem != null) { return(srcItem.Item); } Model.ModelList srcList = value as Model.ModelList; if (srcList != null) { return(srcList.List); } return(null); }
/// <summary> /// Gets a new model item for creating an item. Takes the /// parent list /// </summary> /// <param name="list"></param> /// <returns></returns> public ModelItem GetNewItem(ModelList list) { // This method requires the parent list and the user id // to ensure that referential integrity is maintained Item item = new Item() { ID = Guid.NewGuid(), UserID = UserID, ListID = list.List.ID }; return new ModelItem(item, context); }
/// <summary> /// Adds a new list. It is important to note that because there is no enforcement of /// data consistency in the context, the app must understand the data and enforce it. /// </summary> /// <param name="modelList">The model list to add</param> public void AddList(ModelList modelList) { // Extract the service entity from the model entity DefaultScope.List newList = modelList.List; // Simple argument checking if (null == newList) { throw new ArgumentNullException("newList"); } if (newList.ID == null) { throw new ArgumentNullException("List id is null"); } // Do a LINQ query to verify that the list can be added. Current constraints // are unique id and unique name. DefaultScope.List existingList = (from s in context.ListCollection where s.ID == newList.ID || s.Name == newList.Name select s).FirstOrDefault(); if (existingList != default(List)) { throw new ArgumentException("List with the same id already exists"); } // Add the list to the context. context.AddList(newList); }