hMailServer.Administrator.formMain.treeNodes_MouseUp C# (CSharp) Method

        private void treeNodes_MouseUp(object sender, MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Right)
            {
                TreeViewHitTestInfo hitTest = treeNodes.HitTest(e.Location);

                // Determine whether we should display a context menu or not.
                TreeNode currentNode = hitTest.Node;
                if (currentNode == null)
                    return;

                INode internalNode = currentNode.Tag as INode;
                if (internalNode == null)
                    return;

                // Let's see if we can create a context menu now.
                ContextMenuStrip menu = internalNode.CreateContextMenu();
                if (menu == null)
                    return;

                /*
                    Switch to the new node. We do this to make sure that the
                    event handler can refresh the tree properly.

                    For example, if the user clicks on a domain, right clicks
                    on the Accounts node and selects Add, we need to do the following:
                    1) Ask the user if he wants to save the domain changes (if any)
                    2) Switch to the Accounts node
                    3) Show the context menu

                    Number 2 isn't strictly required here. However, if we don't change
                    the node, it will be hard for the Account user control to update
                    the tree in the correct location.
                */

                /*if (!ChangeToNode(currentNode))
                    return;
            */
                // Display the context menu.
                menu.Show(treeNodes.PointToScreen(e.Location));

            }
        }