public void EventOrdering_CommitItem_Sorted()
{
var items = new List <Rectangle>()
{
new Rectangle {
Width = 0
},
new Rectangle {
Width = 1
},
new Rectangle {
Width = 3
},
new Rectangle {
Width = 4
},
};
Source.Source = items;
View.CollectionChanged += (o, e) => CollectionChangedArgs.Add(e);
View.SortDescriptions.Add(new SortDescription("Width", ListSortDirection.Ascending));
Editable.AddNew();
CollectionChangedArgs.Clear();
Editable.CommitNew();
Assert.AreEqual(2, CollectionChangedArgs.Count, "#1");
Assert.AreEqual(NotifyCollectionChangedAction.Remove, CollectionChangedArgs[0].Action, "#2");
Assert.AreEqual(4, CollectionChangedArgs[0].OldStartingIndex, "#3");
Assert.AreEqual(NotifyCollectionChangedAction.Add, CollectionChangedArgs[1].Action, "#4");
Assert.AreEqual(0, CollectionChangedArgs[1].NewStartingIndex, "#5");
}
public void AddNew_DoesNotRegenerateGroups()
{
var groups = View.Groups;
Editable.AddNew();
Assert.AreSame(groups, View.Groups, "#1");
Editable.CommitNew();
Assert.AreSame(groups, View.Groups, "#2");
}
public void EventOrdering_CommitFilteredItem()
{
// Filter everything then add a new item
View.Filter = o => false;
Editable.AddNew();
CollectionChangedArgs.Clear();
Editable.CommitNew();
Assert.AreEqual(1, CollectionChangedArgs.Count, "#1");
Assert.AreEqual(NotifyCollectionChangedAction.Remove, CollectionChangedArgs[0].Action, "#2");
}
public void AddNew_CommitFilteredItem()
{
// Filter everything then add a new item
View.Filter = o => false;
var item = Editable.AddNew();
Assert.IsTrue(View.Cast <object>().Contains(item), "#1");
Editable.CommitNew();
Assert.IsFalse(View.Cast <object>().Contains(item), "#2");
}
public void AddNew_Sorted_SameKeys()
{
var items = new List <Rectangle> ()
{
new Rectangle {
Width = 0
},
new Rectangle {
Width = 2, Height = 1
},
new Rectangle {
Width = 1
},
new Rectangle {
Width = 2, Height = 2
},
new Rectangle {
Width = 3
},
new Rectangle {
Width = 2, Height = 3
},
new Rectangle {
Width = 4
},
new Rectangle {
Width = 2, Height = 4
},
};
Source.Source = items;
Source.SortDescriptions.Add(new SortDescription("Width", ListSortDirection.Ascending));
var rect = Editable.AddNew() as Rectangle;
Assert.AreSame(rect, View.Cast <object> ().Last(), "#1");
Assert.AreSame(rect, View.CurrentItem, "#2");
Assert.AreEqual(8, View.CurrentPosition, "#3");
rect.Width = 2;
Assert.AreSame(rect, View.Cast <object> ().Last(), "#4");
Assert.AreSame(rect, View.CurrentItem, "#5");
Assert.AreEqual(8, View.CurrentPosition, "#6");
Editable.CommitNew();
Assert.AreSame(rect, View.CurrentItem, "#7");
Assert.AreEqual(3, View.CurrentPosition, "#8");
Assert.AreSame(rect, View.Cast <object> ().ElementAt(3), "#9");
}
public void AddAndCommitNew_IsAddedToGroups()
{
// If we 'AddNew' the item ends up in a special group it seems
View.GroupDescriptions.Add(new ConcretePropertyGroupDescription()
{
GroupNameFromItemFunc = (item, depth, culture) => Items.IndexOf(item) < 3 ? "First" : "Second"
});
var groups = View.Groups;
var added = Editable.AddNew();
Editable.CommitNew();
Assert.AreEqual(2, groups.Count, "#1");
Assert.IsFalse(((CollectionViewGroup)groups [0]).Items.Contains(added), "#2");
Assert.IsTrue(((CollectionViewGroup)groups [1]).Items.Contains(added), "#3");
Assert.AreSame(added, ((CollectionViewGroup)groups [1]).Items.Last(), "#4");
Assert.AreSame(groups, View.Groups, "#5");
}
public void CommitNew_NoAdd()
{
// This has no effect if there's no add new
Editable.CommitNew();
}