public int IndexOf(GroupViewItem item)
{
int count = this.Count;
for (int i = 0; i < count; i++)
{
if (this[i] == item)
{
return i;
}
}
return -1;
}
public void Remove(GroupViewItem value)
{
this._items.Remove(value);
}
public void AddRange(GroupViewItem[] items)
{
foreach (GroupViewItem item in items)
{
this.Add(item);
}
}
public bool Contains(GroupViewItem item)
{
return (this.IndexOf(item) != -1);
}
public void Add(GroupViewItem value)
{
this._items.Add(value);
this._owner.OnItemAdded(value);
}
internal void OnItemRemoved(GroupViewItem item)
{
if (this._groupListView != null)
{
int index = -1;
int num2 = 0;
foreach (GroupViewListViewItem item2 in this._groupListView.Items)
{
if (item2.GroupViewItem == item)
{
index = num2;
break;
}
num2++;
}
if (index != -1)
{
this._groupListView.Items.RemoveAt(index);
}
}
}
internal void OnItemAdded(GroupViewItem item)
{
if (this._groupListView != null)
{
int index = this._items.IndexOf(item);
GroupViewListViewItem item2 = new GroupViewListViewItem(item);
this._groupListView.Items.Insert(index, item2);
}
}
private void OnGroupViewItemDrag(object sender, ItemDragEventArgs e)
{
this._dragItem = null;
if (this._allowDrag)
{
GroupViewItem groupViewItem = ((GroupViewListViewItem) e.Item).GroupViewItem;
DataObject dragDropDataObject = groupViewItem.GetDragDropDataObject();
if (dragDropDataObject != null)
{
this._dragItem = groupViewItem;
if (this._dragCursor != IntPtr.Zero)
{
Interop.DestroyCursor(this._dragCursor);
this._dragCursor = IntPtr.Zero;
}
this._lastDragEffect = DragDropEffects.None;
base.DoDragDrop(dragDropDataObject, DragDropEffects.Move | DragDropEffects.Copy);
}
}
}
public GroupViewItemEventArgs(GroupViewItem item)
{
this._item = item;
}