title: Operator '+' cannot be applied to operands of type 'string' and 'method group in mvc
body: <p>this error appear</p>
  
  <p>Operator '+' cannot be applied to operands of type 'string' and 'method group'</p>
  
  <p>for this statement in my code:</p>
  
  <pre><code>&lt;input type="checkbox" name="selectedItems" id=@string.Format("radio"+     (item.Id).ToString()) class="css-checkbox9 all_check" value="@item.Id" /&gt;
  &lt;label for=@string.Format("radio"+ (item.Id).ToString()) class="css-label9" checked="checked"&gt;&amp;nbsp; &lt;/label&gt;
  </code></pre>
  
  <p>can anyone help me ????</p>