// END - NEW ADD OVERLOADS IN WHIDBEY -->
/// <include file='doc\TreeNodeCollection.uex' path='docs/doc[@for="TreeNodeCollection.AddRange"]/*' />
public virtual void AddRange(TreeNode[] nodes)
{
if (nodes == null)
{
throw new ArgumentNullException(nameof(nodes));
}
if (nodes.Length == 0)
{
return;
}
TreeView tv = owner.TreeView;
if (tv != null && nodes.Length > TreeNode.MAX_TREENODES_OPS)
{
tv.BeginUpdate();
}
owner.Nodes.FixedIndex = owner.childCount;
owner.EnsureCapacity(nodes.Length);
for (int i = nodes.Length - 1; i >= 0; i--)
{
AddInternal(nodes[i], i);
}
owner.Nodes.FixedIndex = -1;
if (tv != null && nodes.Length > TreeNode.MAX_TREENODES_OPS)
{
tv.EndUpdate();
}
}
/// <include file='doc\TreeNodeCollection.uex' path='docs/doc[@for="TreeNodeCollection.Add1"]/*' />
/// <devdoc>
/// Adds a new child node to this node. Child node is positioned after siblings.
/// </devdoc>
public virtual int Add(TreeNode node)
{
if (node == null)
{
throw new ArgumentNullException("node");
}
if (node.handle != IntPtr.Zero)
{
throw new ArgumentException(SR.GetString(SR.OnlyOneControl, node.Text), "node");
}
// If the TreeView is sorted, index is ignored
TreeView tv = owner.TreeView;
if (tv != null && tv.Sorted)
{
return(owner.AddSorted(node));
}
owner.EnsureCapacity();
node.parent = owner;
node.index = owner.childCount++;
owner.children[node.index] = node;
node.Realize();
if (tv != null && node == tv.selectedNode)
{
tv.SelectedNode = node; // communicate this to the handle
}
return(node.index);
}
