/// <summary>
/// Removes each node of the collection
/// </summary>
public new void Clear()
{
ReadWriteLock.AcquireWriterLock(-1);
while (this.Count > 0)
{
this[0].Remove();
}
ReadWriteLock.ReleaseWriterLock();
}
/// <summary>
/// Remove an item from the collection and the TreeListView
/// </summary>
/// <param name="item"></param>
public virtual void Remove(TreeListViewItem item)
{
int index = -1;
ReadWriteLock.AcquireWriterLock(-1);
for (int i = 0; i < this.Count; i++)
{
if (this[i] == item)
{
index = i;
}
}
if (index > -1)
{
RemoveAt(index);
}
ReadWriteLock.ReleaseWriterLock();
}
/// <summary>
/// Adds an item in the collection and in the TreeListView
/// </summary>
/// <param name="item"></param>
/// <returns>Index of the item in the collection</returns>
public virtual int Add(TreeListViewItem item)
{
int index = GetInsertCollectionIndex(item);
if (index == -1)
{
return(-1);
}
if (Parent != null)
{
item.SetParent(Parent);
}
item.Items.Comparer = this.Comparer;
ReadWriteLock.AcquireWriterLock(-1);
int treelistviewindex = GetInsertTreeListViewIndex(item);
// Insert in the ListView
if (treelistviewindex > -1)
{
ListView listview = (ListView)TreeListView;
InsertListViewItem insert = new InsertListViewItem(listview.Items.Insert);
if (listview.InvokeRequired)
{
listview.Invoke(insert, new object[] { treelistviewindex, (ListViewItem)item });
}
else
{
listview.Items.Insert(treelistviewindex, (ListViewItem)item);
}
if (item.IsExpanded)
{
item.Expand();
}
item.SetIndentation();
}
// Insert in this collection
if (index > -1)
{
List.Insert(index, item);
}
ReadWriteLock.ReleaseWriterLock();
return(index);
}
/// <summary>
/// Remove an item from the collection and the TreeListView
/// </summary>
/// <param name="index"></param>
public new void RemoveAt(int index)
{
ReadWriteLock.AcquireWriterLock(-1);
TreeListViewItem item = this[index];
if (this[index].Visible && this.TreeListView != null)
{
ListView listview = (ListView)TreeListView;
RemoveListViewItem remove = new RemoveListViewItem(listview.Items.Remove);
if (listview.InvokeRequired)
{
listview.Invoke(remove, new Object[] { (ListViewItem)item });
}
else
{
listview.Items.Remove((ListViewItem)item);
}
}
List.RemoveAt(index);
item.SetParent(null);
ReadWriteLock.ReleaseWriterLock();
}
/// <summary>
/// Sort the items in this collection (recursively or not)
/// </summary>
/// <param name="recursively">Recursively</param>
public void Sort(bool recursively)
{
ReadWriteLock.AcquireWriterLock(-1);
// Gets an array of the items
TreeListViewItem[] thisarray = Array;
// System.Array.Sort(thisarray, new TreeListViewItemCollectionComparer(order));
// Removes the items
this.Clear();
// Adds the items
foreach (TreeListViewItem item in thisarray)
{
this.Add(item);
}
if (recursively)
{
foreach (TreeListViewItem item in thisarray)
{
item.Items.Sort(true);
}
}
ReadWriteLock.ReleaseWriterLock();
}