internal static void AddListBoxItems(ListBox listBox1)
{
var Items = new FilteredBindingList <Item>();
foreach (var Item in Constants.Items.Values)
{
Items.Add(Item);
}
listBox1.DataSource = new BindingSource(Items, null);
listBox1.Sorted = true;
}
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.
var 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)
{
foreach (object item in 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 (var i = 0; i < Count; i++)
{
var 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 +
" does not implement IComparable");
}
}
