title: How to get a list parameter from a grails view
body: <p>In my view I have the following:</p>
  
  <pre><code>&lt;g:hiddenField name='expandableEducationList[${edIdx}]._deleted' value='false'/&gt;
  &lt;button 
                  onclick="dojo.byId('expandableEducationList[${edIdx}]._deleted').value='true'; getContainer(this, 'tr').style.display='none'"
                  style="width:auto;"
                  iconClass="minusIconSmall"
                  showlabel="false"
                  class="embedded"            
                  dojoType="dijit.form.Button"&gt;&lt;/button&gt;
  </code></pre>
  
  <p>How do I get that expandableEducationList from my controller? If I do a "println params" I can see the values there, but I want to iterate over the list and params.expandableEducationList is returning null</p>
  
  <p>Here's what I get in my controller when I print the values:</p>
  
  <pre><code>    params?.each{
          println ("it: " + it)
      }
  </code></pre>
  
  <p>returns</p>
  
  <pre><code>it: expandableEducationList[2].type.id=35
  it: expandableEducationList[2]=["lastModified_day":"29", "id":"272", "lastModified_year":"2010", "areaOfStudy":"Computer
   Science", "yearGranted":"2008", "lastModified_month":"9", "_deleted":"false", "_inProcess":"", "type":["id":"35"], "col
  legeName":"COLLEGE3", "type.id":"35"]
  it: expandableEducationList[1]._deleted=false
  it: expandableEducationList[1]=["id":"271", "lastModified_day":"29", "lastModified_year":"2010", "areaOfStudy":"Mathemat
  ics and Computer Science", "yearGranted":"2009", "lastModified_month":"9", "_inProcess":"", "_deleted":"false", "type":[
  "id":"30"], "type.id":"30", "collegeName":"COLLEGE1"]
  it: expandableEducationList[2].id=272
  it: _action_update=
  it: expandableEducationList[1].lastModified_month=9
  it: expandableEducationList[2].yearGranted=2008
  it: expandableEducationList[1].collegeName=COLLEGE1
  it: id=518
  it: _expandableEducationList[2].inProcess=
  it: expandableEducationListx[0]_name=42
  it: expandableEducationList[0].areaOfStudy=Systems Engineering
  it: expandableEducationList[0]=["lastModified_day":"29", "id":"270", "lastModified_year":"2010", "yearGranted":"2010", "
  areaOfStudy":"Systems Engineering", "lastModified_month":"9", "_deleted":"false", "_inProcess":"", "type":["id":"42"], "
  type.id":"42", "collegeName":"COLLEGE2"]
  it: expandableEducationList[2].lastModified_day=29
  it: expandableEducationList[0].id=270
  it: expandableEducationList[2]._deleted=false
  it: expandableEducationList[0].lastModified_day=29
  it: geographicPreferences=
  it: expandableEducationList[2].areaOfStudy=Computer Science
  it: expandableEducationList[2].collegeName=COLLEGE3
  it: expandableEducationListx[1]_name=30
  it: expandableEducationList[1].lastModified_day=29
  it: _expandableEducationList[0].inProcess=
  it: _expandableEducationList[1].inProcess=
  it: expandableEducationList[0]._deleted=false
  it: expandableEducationList[1].yearGranted=2009
  it: expandableEducationList[1].lastModified_year=2010
  it: expandableEducationList[2].lastModified_month=9
  it: expandableEducationList[1].areaOfStudy=Mathematics and Computer Science
  it: expandableEducationList[2].lastModified_year=2010
  it: expandableEducationList[1].id=271
  it: expandableEducationListx[2]_name=35
  it: expandableEducationList[0].yearGranted=2010
  it: expandableEducationList[0].lastModified_month=9
  it: expandableEducationList[0].collegeName=COLLEGE2
  it: expandableEducationList[0].lastModified_year=2010
  it: expandableEducationList[0].type.id=42
  it: expandableEducationList[1].type.id=30
  </code></pre>