How to change the selected nodes's text color to highlight a particular node in WinForms TreeViewAdv?

private void treeViewAdv1_MouseDown(object sender, MouseEventArgs e)
{
    if (e.Button == MouseButtons.Left)
    {
        if (this.treeViewAdv1.PointToNode(new System.Drawing.Point(e.X, e.Y)) == null)
            return;

        this.treeViewAdv1.PointToNode(new System.Drawing.Point(e.X, e.Y)).TextColor = Color.Red;
    }
}

Private Sub treeViewAdv1_MouseDown(ByVal sender As Object, ByVal e As MouseEventArgs) Handles treeViewAdv1.MouseDown
    If e.Button = MouseButtons.Left Then
        If Me.treeViewAdv1.PointToNode(New System.Drawing.Point(e.X, e.Y)) Is Nothing Then
            Return
        End If

        Me.treeViewAdv1.PointToNode(New System.Drawing.Point(e.X, e.Y)).TextColor = Color.Red
    End If
End Sub