public TreeNode FindNode(TreeNode node, NodeTag tag)
{
// check with node itself
if (null != node)
{
NodeTag tagNode = node.Tag as NodeTag;
if (null != tagNode && tagNode.Equals(tag))
return node;
}
// check with child nodes
TreeNodeCollection tnCollection = null == node ? Nodes : node.Nodes;
foreach (TreeNode tn in tnCollection)
{
TreeNode tnResult = FindNode(tn, tag);
if (null != tnResult)
return tnResult;
}
return null;
}
public void PopulateAndSelectNode(NodeTag tag)
{
TreeNode nodeSelected = FindNode(null, tag);
BeginUpdate(); // this disables redrawing of tree
if (null == nodeSelected)
{
_log.Error(string.Format("Failed to retrieve valid node from NodeTag {0}", tag.ToString()));
// retrieve db node
Pic.DAL.SQLite.PPDataContext db = new Pic.DAL.SQLite.PPDataContext();
Pic.DAL.SQLite.TreeNode tn = Pic.DAL.SQLite.TreeNode.GetById(db, tag.TreeNode);
// insert all needed parents and node
nodeSelected = InsertNodeAndParents(tn, db);
if (null == nodeSelected)
{
_log.Error(string.Format("Failed to retrieve valid node from NodeTag {0}", tag.ToString()));
return; // -> complete failure
}
}
if (null != nodeSelected)
{
_preventEventTriggering = true;
// ################## --> needed to update tree
nodeSelected.Expand();
// ################## --> needed to update tree
SelectedNode = nodeSelected;
EndUpdate(); // enables the redrawing of the treeview
_preventEventTriggering = false;
SelectedNode = nodeSelected;
}
else
EndUpdate(); // enables the redrawing of the treeview
}
public NodeEventArgs(int treeNodeId, NodeTag.NodeType type) { _treeNodeId = treeNodeId; _type = type; }
public void SelectNode(NodeTag tag)
{
SelectedNode = FindNode(null, tag);
if (null != SelectedNode)
SelectedNode.EnsureVisible();
}
private void insertNewDocumentLabel_Click(object sender, EventArgs e)
{
try
{
Pic.DAL.SQLite.PPDataContext db = new Pic.DAL.SQLite.PPDataContext();
NodeTag tag = GetCurrentTag();
if (null == tag || tag.IsDocument)
throw new Exception("Invalid TreeNode tag");
Pic.DAL.SQLite.TreeNode treeNode = Pic.DAL.SQLite.TreeNode.GetById(db, tag.TreeNode);
// force creation of a profile if no profile exist
Pic.DAL.SQLite.CardboardProfile[] cardboardProfiles = Pic.DAL.SQLite.CardboardProfile.GetAll(db);
if (cardboardProfiles.Length == 0)
{
FormEditProfiles dlgProfile = new FormEditProfiles();
dlgProfile.ShowDialog();
}
cardboardProfiles = Pic.DAL.SQLite.CardboardProfile.GetAll(db);
if (cardboardProfiles.Length == 0)
return;
// show dialog
FormCreateDocument dlg = new FormCreateDocument();
dlg.TreeNode = tag;
if (DialogResult.OK == dlg.ShowDialog())
{
// insert document in treeview
List<Pic.DAL.SQLite.TreeNode> tnodes = Pic.DAL.SQLite.TreeNode.GetByDocumentId(db, dlg.DocumentID);
// (re)populate parent node
PopulateChildren(SelectedNode);
if (dlg.OpenInsertedDocument)
{
// select current node
NodeTag newDocTag = new NodeTag(NodeTag.NodeType.NT_DOCUMENT, tnodes[0].ID);
SelectedNode = FindNode(null, newDocTag); // <- for some reasons, this does not work
// however, we can force document opening with the following line
SelectionChanged(this, new NodeEventArgs(newDocTag.TreeNode, newDocTag.Type), newDocTag.Name);
}
}
}
catch (System.Exception ex)
{
Debug.Fail(ex.ToString());
_log.Error(ex.ToString());
}
}