void treeView1_BeforeExpand(object sender, TreeViewCancelEventArgs e)
{
var node = (VvTreeNode)e.Node;
if (node.GetNodeCount(true) == 1)
{
VvTreeNode childnode = (VvTreeNode)node.Nodes[0];
//if node has an empty ID it has not been initialized
if (Guid.Empty.Equals(childnode.NodeID))
{
node.Nodes.Remove(childnode);
Guid folderID = node.NodeID;
VVRuntime.VisualVault.Library.Folders.FolderCollection folderCollection = _vault.DefaultStore.Library.GetChildFolders(folderID);
foreach (VVRuntime.VisualVault.Library.Folders.Folder folder in folderCollection)
{
VvTreeNode newnode = new VvTreeNode(folder.FolderID, folder.Name);
newnode.Nodes.Add(new VvTreeNode(Guid.Empty, ""));
node.Nodes.Add(newnode);
}
}
}
}
private void InitializeTreeview()
{
if (_vault != null)
{
var folderCollection = _vault.DefaultStore.Library.GetTopLevelFolders();
VvTreeNode node;
foreach (VVRuntime.VisualVault.Library.Folders.Folder folder in folderCollection)
{
node = new VvTreeNode(folder.FolderID, folder.Name);
node.Nodes.Add(new VvTreeNode(Guid.Empty, ""));
treeView1.Nodes.Add(node);
}
if (treeView1.GetNodeCount(false) > 0)
{
node = (VvTreeNode)treeView1.Nodes[0];
//select the first folder in the tree
if (node != null)
{
treeView1.SelectedNode = node;
_selectedFolderID = _vault.DefaultStore.Library.GetFolder(node.NodeID).FolderID;
}
}
}
}
