/// <summary>
/// Creates a tree node and add it to the <c>TreeNodeCollection</c>.
/// </summary>
/// <param name="parentCollection"><c>TreeNodeCollection</c> to which the new node will added.</param>
/// <param name="parentNode">Parent node for the new created child node.</param>
/// <param name="text">The text displayed in the label of the tree node.</param>
/// <param name="path">The path the node represents.</param>
/// <param name="addDummyNode">True to add + sign, otherwise no + sign appears.</param>
/// <param name="forceChecked">True to check node in each case, otherwise false to allow normal check against selected paths.</param>
/// <param name="isSpecialFolder">Specifies if this node is a special folder. Special folders do not request data from the attached data provider.</param>
/// <returns>The newly created and added node</returns>
public virtual TreeNodePath CreateTreeNode(System.Windows.Forms.TreeNodeCollection parentCollection, TreeNodePath parentNode, string text, string path, bool addDummyNode, bool forceChecked, bool isSpecialFolder)
{
if (parentCollection == null)
{
throw new ArgumentNullException("parentCollection");
}
//
if (_treeView.InvokeRequired)
{
return(_treeView.Invoke(new CreateTreeNodeDelegate(CreateTreeNode), new object[] { parentNode, text, path, addDummyNode, forceChecked, isSpecialFolder }) as TreeNodePath);
}
//
forceChecked = forceChecked || (TreeView.CheckBoxBehaviorMode == CheckBoxBehaviorMode.RecursiveChecked && (parentNode != null && parentNode.Checked));
//
TreeNodePath childNode = CreateTreeNode(text, path, addDummyNode, forceChecked, isSpecialFolder);
parentCollection.Add(childNode);
return(childNode);
}
/// <summary>
/// Expands the tree node.
/// </summary>
/// <param name="parentNode">The Expand method expands the current TreeNode down to the next level of nodes.</param>
public virtual void ExpandNode(System.Windows.Forms.TreeNode parentNode)
{
if (_treeView.InvokeRequired)
{
_treeView.Invoke(new ExpandNodeDelegate(ExpandNode), new object[] { parentNode });
return;
}
System.Diagnostics.Debug.Assert(parentNode != null);
parentNode.Expand();
}