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();
});
}
/// <summary>
/// This method will listen to the CurrentChanged event and will commit any add or edit
/// operations taking place in the PagedCollectionView.
/// </summary>
/// <param name="sender">PagedCollectionView firing the event</param>
/// <param name="e">CurrentChanged event args</param>
private void CommitAddOrEditOperation(object sender, EventArgs e)
{
PagedCollectionView pcv = sender as PagedCollectionView;
if (pcv != null)
{
if (pcv.IsAddingNew)
{
pcv.CommitNew();
}
else if (pcv.IsEditingItem)
{
pcv.CommitEdit();
}
}
}