public MetadataRule ShowRuleEditor(MetadataRule rule)
        {
            using (var dlg = new MetadataRuleEditor(DocumentContainer))
            {
                if (rule != null)
                {
                    dlg.MetadataRule = rule;
                }
                if (dlg.ShowDialog(this) == DialogResult.OK)
                {
                    return(dlg.MetadataRule);
                }
            }

            return(null);
        }
 public RuleRow(MetadataRule rule)
 {
     Rule = rule;
 }