title: How to count grouping records in JasperReports
body: <p>I have a problem with <em>JasperReports</em>.<br>
  I want to count the group, for example report data:</p>
  
  <pre><code>Item Movement 
  
  No Product Name  DOC      Date       In    OUT    Saldo
  **1**  Product_name_1                               0
                   DOC-0001 12-06-2013 2      0       2
                   DOC-0002 12-06-2013 2      0       4
  
  **2**  Product_name_2                               0
                   DOC-0003 13-06-2013 2      1       1
  
  **3**  Product_name_3                               0
                   DOC-0004 14-06-2013 1      0       1
  </code></pre>
  
  <p>I'm using <em>iReport Designer 5.1.0</em>.<br>
  Can someone help me to make <strong>1</strong> *<em>2</em>* <strong>3</strong> like the report?</p>