public void AddEventCancel()
{
var collection = new StatefulCollection <string>(new[] { "Hello", "World" });
collection.AddItem += (s, e) =>
{
e.Cancel = e.Item.ToString() != "simplic";
Assert.IsNotNull(e.Item);
};
collection.Add("test");
Assert.AreEqual(collection.Count, 2);
Assert.AreEqual(collection.CountNewItems, 0);
Assert.AreEqual(collection.CountRemovedItems, 0);
collection.Add("simplic");
Assert.AreEqual(collection.Count, 2);
Assert.AreEqual(collection.CountNewItems, 1);
Assert.AreEqual(collection.CountRemovedItems, 0);
collection.Commit();
Assert.AreEqual(collection.Count, 3);
Assert.AreEqual(collection.CountNewItems, 0);
Assert.AreEqual(collection.CountRemovedItems, 0);
}
public void RemoveEventCancel()
{
var collection = new StatefulCollection <string>(new[] { "Hello", "World", "Simplic" });
collection.RemoveItem += (s, e) =>
{
e.Cancel = e.Item.ToString() != "Simplic";
Assert.IsNotNull(e.Item);
Assert.AreNotEqual(e.Item, "NotInList");
};
collection.Remove("NotInList");
Assert.AreEqual(collection.Count, 3);
Assert.AreEqual(collection.CountNewItems, 0);
Assert.AreEqual(collection.CountRemovedItems, 0);
collection.Remove("Hello");
Assert.AreEqual(collection.Count, 3);
Assert.AreEqual(collection.CountNewItems, 0);
Assert.AreEqual(collection.CountRemovedItems, 0);
collection.Remove("Simplic");
Assert.AreEqual(collection.Count, 2);
Assert.AreEqual(collection.CountNewItems, 0);
Assert.AreEqual(collection.CountRemovedItems, 1);
collection.Commit();
Assert.AreEqual(collection.Count, 2);
Assert.AreEqual(collection.CountNewItems, 0);
Assert.AreEqual(collection.CountRemovedItems, 0);
}