private void PopulateTreeView(int parentNodeVal, DataTable dt)
{
foreach (DataRow r in dt.Rows)
{
TreeNode t1 = new TreeNode();
TreeNode pIndex = Node(r["PARENT"].ToString());
t1.NodeKey = r["UID"].ToString();
t1.Text = r["NODE"].ToString();
OnNextSnippet(this, new NextSnippetEventArgs(t1.NodeKey));
if (parentNodeVal != -1)
{
// child node
if (pIndex != null)
{
AddNode(t1, pIndex.Key?.ToString());
}
}
else
{
// It's a root node
AddNodeRoot(t1);
}
if (ContainsNode(r["UID"].ToString()))
{
PopulateTreeView(Int32.Parse(r["UID"].ToString()), SnippetDb.PopulateTreeQuery(Int32.Parse(r["UID"].ToString())));
}
}
}
public void PopulateTreeView(int parentNodeVal)
{
if (parentNodeVal == -1 || ContainsNode(parentNodeVal.ToString()))
{
using (DataTable y = SnippetDb.PopulateTreeQuery(parentNodeVal))
{
OnSendTotal(this, new TotalCountEventArgs(y.Rows.Count));
PopulateTreeView(parentNodeVal, y);
OnComplete(this, new EventArgs());
}
}
}
protected override void OnAfterLabelEdit(NodeLabelEditEventArgs e)
{
base.OnAfterLabelEdit(e);
bool invalidText = false;
if (e.Label != null)
{
if (e.Label.Length > 0)
{
var h = e.Label;
if (e.Label.IndexOfAny(new char[] { '@', '.', ',', '!' }) > -1)
{
invalidText = true;
Regex r = new Regex(@"[@\.\,!]");
h = r.Replace(e.Label, "_");
r = null;
}
if (e.Node.Text == String.Empty)
{
// Brand New Node, Doesn't Exist Yet.
e.Node.Text = h;
e.Node.EndEdit(false);
// Store in Database
SnippetDb.InsertNodeV1(
(e.Node != null ? Int32.Parse(((TreeNode)e.Node).NodeKey.ToString()) : 0),
(e.Node.Parent != null ? Int32.Parse(((TreeNode)e.Node.Parent).NodeKey.ToString()) : -1),
e.Node.Text
);
}
else
{
e.Node.Text = h;
e.Node.EndEdit(false);
// Update Database
SnippetDb.RenameNode(Int32.Parse(((TreeNode)e.Node).NodeKey), e.Node.Text);
}
if (invalidText)
{
MessageBox.Show("Invalid tree node label.\n" +
"The invalid characters are: '@','.', ',', '!', replaced with '_'",
"Node Label Edit");
return;
}
}
LabelEdit = false;
}
}
