private void treeView_AfterLabelEdit(object sender, NodeLabelEditEventArgs e)
{
if (e.Label != null)
{
Regex alphaNumeric = new Regex("^[a-zA-Z0-9]*$");
if (alphaNumeric.IsMatch(e.Label) == false)
{
DialogResult result = MessageBox.Show(
"Invalid name given for node\r\n" +
"Use characters 'A-Z, a-z, or 0-9",
"Rename Node",
MessageBoxButtons.RetryCancel
);
e.CancelEdit = true;
if (result == DialogResult.Retry)
{
e.Node.BeginEdit();
}
}
else
{
TOKNode tokNode = (TOKNode)e.Node.Tag;
tokNode.Name = String.Copy(e.Label);
}
}
else
{
e.CancelEdit = true;
}
}
private TreeNode makeTreeNode(TOKNode tokNode)
{
TreeNode treeNode = new TreeNode(tokNode.Name);
treeNode.Tag = tokNode;
if (tokNode.GetType() != typeof(TOKLeaf))
{
TOKBranch tokBranch = (TOKBranch)tokNode;
foreach (TOKNode childTokNode in tokBranch.Nodes)
{
TreeNode childTreeNode = makeTreeNode(childTokNode);
treeNode.Nodes.Add(childTreeNode);
}
}
return(treeNode);
}
