/// <summary>
/// Recursively retrieve entire linked document
/// hierarchy and return the resulting TreeNode
/// structure.
/// </summary>
void GetChildren(
Document mainDoc,
ICollection <ElementId> ids,
TreeNode parentNode)
{
int level = parentNode.Level;
foreach (ElementId id in ids)
{
// Get the child information.
RevitLinkType type = mainDoc.GetElement(id)
as RevitLinkType;
string label = LinkLabel(type, level);
TreeNode subNode = new TreeNode(label);
Debug.Print("{0}{1}", Indent(2 * level),
label);
parentNode.Nodes.Add(subNode);
// Go to the next level.
GetChildren(mainDoc, type.GetChildIds(),
subNode);
}
}
public Result Execute(
ExternalCommandData commandData,
ref string message,
ElementSet elements)
{
UIApplication uiapp = commandData.Application;
UIDocument uidoc = uiapp.ActiveUIDocument;
// Get the active document.
Document mainDoc = uidoc.Document;
// Prepare to show the resulting linked
// document tree hierarchy.
TreeNode mainNode = new TreeNode();
mainNode.Text = mainDoc.PathName;
// Start at the root links (no parent node).
FilteredElementCollector coll
= new FilteredElementCollector(mainDoc)
.OfClass(typeof(RevitLinkInstance));
foreach (RevitLinkInstance inst in coll)
{
RevitLinkType type = mainDoc.GetElement(
inst.GetTypeId()) as RevitLinkType;
if (type.GetParentId()
== ElementId.InvalidElementId)
{
string label = LinkLabel(type, 0);
TreeNode parentNode = new TreeNode(label);
Debug.Print(label);
mainNode.Nodes.Add(parentNode);
GetChildren(mainDoc, type.GetChildIds(),
parentNode);
}
}
// Show the results in a form.
System.Windows.Forms.Form resultForm
= new System.Windows.Forms.Form();
TreeView treeView = new TreeView();
treeView.Size = resultForm.Size;
treeView.Anchor |= AnchorStyles.Bottom
| AnchorStyles.Top;
treeView.Nodes.Add(mainNode);
resultForm.Controls.Add(treeView);
resultForm.ShowDialog();
return(Result.Succeeded);
}