private void OnDelete(TreeNode node)
{
// Prompt first.
string promptText = "Are you sure you want to delete '" + node.Text + "'?";
if (MessageBox.Show(promptText, "Confirm deletion", MessageBoxButtons.OKCancel, MessageBoxIcon.Question) != DialogResult.OK)
{
return;
}
// Delete the element itself.
IElementPropertyInfo elementInfo = node.Tag as IElementPropertyInfo;
if (elementInfo == null)
{
return;
}
elementInfo.DeleteElement();
OnElementChanged();
// Delete the node.
ClearCurrentPage();
TreeNode parentNode = node.Parent;
tvwElements.Nodes.Remove(node);
tvwElements.Focus();
tvwElements.Select();
tvwElements.SelectedNode = parentNode;
}
