private void LoadData()
{
_people = _dataContext.GetPeople();
var fPeople = new FilteredBindingList <Person>();
_people.ForEach(p => fPeople.Add(p));
_bsPeople.DataSource = fPeople;
}
protected override void ApplySortCore(PropertyDescriptor prop,
ListSortDirection direction)
{
_sortedList = new ArrayList();
// Check to see if the property type we are sorting by implements
// the IComparable interface.
Type interfaceType = prop.PropertyType.GetInterface("IComparable");
if (interfaceType != null)
{
// If so, set the SortPropertyValue and SortDirectionValue.
_sortPropertyValue = prop;
_sortDirectionValue = direction;
_unsortedItems = new FilteredBindingList <T>();
if (_sortPropertyValue != null)
{
// Loop through each item, adding it the the sortedItems ArrayList.
foreach (Object item in this.Items)
{
_unsortedItems.Add((T)item);
_sortedList.Add(prop.GetValue(item));
}
}
// Call Sort on the ArrayList.
_sortedList.Sort();
T temp;
// Check the sort direction and then copy the sorted items
// back into the list.
if (direction == ListSortDirection.Descending)
{
_sortedList.Reverse();
}
for (int i = 0; i < this.Count; i++)
{
int position = Find(prop.Name, _sortedList[i]);
if (position != i && position > 0)
{
temp = this[i];
this[i] = this[position];
this[position] = temp;
}
}
_isSortedValue = true;
// If the list does not have a filter applied,
// raise the ListChanged event so bound controls refresh their
// values. Pass -1 for the index since this is a Reset.
if (String.IsNullOrEmpty(Filter))
{
OnListChanged(new ListChangedEventArgs(ListChangedType.Reset, -1));
}
}
else
{
// If the property type does not implement IComparable, let the user
// know.
throw new InvalidOperationException("Cannot sort by "
+ prop.Name + ". This" + prop.PropertyType.ToString() +
" does not implement IComparable");
}
}
