public void CannotSortTest()
{
List <TestClass> intList = new List <TestClass>()
{
new TestClass()
};
PagedCollectionView pcv = new PagedCollectionView(intList);
// we are not allowed to sort during an edit operation
pcv.EditItem(pcv[0]);
PagedCollectionViewTest.AssertExpectedException(
new InvalidOperationException(string.Format(CultureInfo.InvariantCulture, PagedCollectionViewResources.OperationNotAllowedDuringAddOrEdit, "Sorting")),
delegate
{
pcv.SortDescriptions.Clear();
});
pcv.CommitEdit();
// we are not allowed to sort during an add new operation
pcv.AddNew();
PagedCollectionViewTest.AssertExpectedException(
new InvalidOperationException(string.Format(CultureInfo.InvariantCulture, PagedCollectionViewResources.OperationNotAllowedDuringAddOrEdit, "Sorting")),
delegate
{
pcv.SortDescriptions.Clear();
});
}
public void CannotRefreshTest()
{
ObservableCollection <TestClass> collection = new ObservableCollection <TestClass>()
{
new TestClass()
};
PagedCollectionView pcv = new PagedCollectionView(collection);
// show that we will throw an exception if we try to change the PageSize while adding
pcv.AddNew();
PagedCollectionViewTest.AssertExpectedException(
new InvalidOperationException(string.Format(CultureInfo.InvariantCulture, PagedCollectionViewResources.OperationNotAllowedDuringAddOrEdit, "Refresh")),
delegate
{
pcv.Refresh();
});
pcv.CancelNew();
// show that we will throw an exception if we try to change the PageSize while editing
pcv.EditItem(pcv[0]);
PagedCollectionViewTest.AssertExpectedException(
new InvalidOperationException(string.Format(CultureInfo.InvariantCulture, PagedCollectionViewResources.OperationNotAllowedDuringAddOrEdit, "Refresh")),
delegate
{
pcv.Refresh();
});
}
public void CannotChangePageSize()
{
ObservableCollection <TestClass> collection = new ObservableCollection <TestClass>()
{
new TestClass()
};
PagedCollectionView pcv = new PagedCollectionView(collection);
// show that we will throw an exception if we try to change the PageSize while adding
pcv.AddNew();
PagedCollectionViewTest.AssertExpectedException(
new InvalidOperationException(PagedCollectionViewResources.ChangingPageSizeNotAllowedDuringAddOrEdit),
delegate
{
pcv.PageSize = 10;
});
pcv.CancelNew();
// show that we will throw an exception if we try to change the PageSize while editing
pcv.EditItem(pcv[0]);
PagedCollectionViewTest.AssertExpectedException(
new InvalidOperationException(PagedCollectionViewResources.ChangingPageSizeNotAllowedDuringAddOrEdit),
delegate
{
pcv.PageSize = 10;
});
}
public void MoveCurrencyToInvalidPosition()
{
// when setting to a value < -1, we should throw
PagedCollectionViewTest.AssertExpectedException(
new ArgumentOutOfRangeException("position"),
delegate
{
CollectionView.MoveCurrentToPosition(-2);
});
// when setting to a value > count, we should throw
PagedCollectionViewTest.AssertExpectedException(
new ArgumentOutOfRangeException("position"),
delegate
{
CollectionView.MoveCurrentToPosition(26);
});
}
public void CannotAddNewTest()
{
// if the size of the collection is fixed, we are not allowed to add items to it.
FixedSizeCollection <TestClass> fixedSizeCollection = new FixedSizeCollection <TestClass>();
PagedCollectionView pcv1 = new PagedCollectionView(fixedSizeCollection);
Assert.IsFalse(pcv1.CanAddNew);
// if the item type does not have a constructor, we are not allowed to call AddNew.
List <int> intList = new List <int>();
PagedCollectionView pcv2 = new PagedCollectionView(intList);
Assert.IsFalse(pcv2.CanAddNew);
PagedCollectionViewTest.AssertExpectedException(
new InvalidOperationException(string.Format(CultureInfo.InvariantCulture, PagedCollectionViewResources.OperationNotAllowedForView, "AddNew")),
delegate
{
pcv2.AddNew();
});
}
public void CannotChangeNewItemPlaceholderPositionTests()
{
List <TestClass> intList = new List <TestClass>()
{
new TestClass()
};
PagedCollectionView pcv = new PagedCollectionView(intList);
Assert.AreEqual(NewItemPlaceholderPosition.None, pcv.NewItemPlaceholderPosition);
PagedCollectionViewTest.AssertExpectedException(
new ArgumentException(
string.Format(CultureInfo.InvariantCulture,
PagedCollectionViewResources.InvalidEnumArgument,
"value",
"123",
typeof(NewItemPlaceholderPosition).Name)),
delegate
{
pcv.NewItemPlaceholderPosition = (NewItemPlaceholderPosition)123;
});
}
public void CultureTest()
{
// verify that Culture is set to null initially
PagedCollectionView pcv = new PagedCollectionView(new List <int>());
Assert.IsNull(pcv.Culture);
// validate setting and retrieving the property
pcv.Culture = CultureInfo.InvariantCulture;
Assert.AreEqual(CultureInfo.InvariantCulture, pcv.Culture);
pcv.Culture = CultureInfo.CurrentUICulture;
Assert.AreEqual(CultureInfo.CurrentUICulture, pcv.Culture);
// verify that if we try to set the value to null after it
// has been set, we get an exception
PagedCollectionViewTest.AssertExpectedException(
new ArgumentNullException("value"),
delegate
{
pcv.Culture = null;
});
}
public void CancelCurrentChangingDuringPageSizeUpdate()
{
// if we don't implement IList, we cannot run the rest of
// the test as we cannot add/remove items
if (this.ImplementsIList)
{
CollectionView.CurrentChanging += new CurrentChangingEventHandler(CancelCurrentChanging);
// add a new item
TestClass newItem = CollectionView.AddNew() as TestClass;
Assert.IsTrue(CollectionView.IsAddingNew);
// verify that because the currency change is cancelled, we do not continue and throw
PagedCollectionViewTest.AssertExpectedException(
new InvalidOperationException(PagedCollectionViewResources.ChangingPageSizeNotAllowedDuringAddOrEdit),
delegate
{
CollectionView.PageSize = 10;
});
// now edit an item
CollectionView.EditItem(CollectionView[0]);
Assert.IsTrue(CollectionView.IsEditingItem);
// verify that because the currency change is cancelled, we do not continue and throw
PagedCollectionViewTest.AssertExpectedException(
new InvalidOperationException(PagedCollectionViewResources.ChangingPageSizeNotAllowedDuringAddOrEdit),
delegate
{
CollectionView.PageSize = 10;
});
CollectionView.CurrentChanging -= new CurrentChangingEventHandler(CancelCurrentChanging);
}
}
