Hi Chris,

Thanks for answering. I did what you mentioned. But I got this error:

.Default (self-tuning)'] org.displaytag.exception.BaseNestableJspTagException (BaseNestableJspTagException.java:99) - Exception: [.LookupUtil] Error looking up property "attrStartDate.time" in object type "com.app.persistence.voting.VotingBean". Cause: Unknown property 'time' java.lang.NoSuchMethodException: Unknown property 'time' at org.apache.commons.beanutils.PropertyUtilsBean.getSimpleProperty(Prop
ertyUtilsBean.java:1122)
at org.apache.commons.beanutils.PropertyUtils.getSimpleProperty(PropertyUtils.java:408)
       at org.displaytag.util.LookupUtil.getProperty(LookupUtil.java:271)
at org.displaytag.util.LookupUtil.getBeanProperty(LookupUtil.java:129)
       at org.displaytag.model.RowSorter.compare(RowSorter.java:140)
       at java.util.Arrays.mergeSort(Arrays.java:1284)
       at java.util.Arrays.mergeSort(Arrays.java:1295)
       at java.util.Arrays.mergeSort(Arrays.java:1295)
       at java.util.Arrays.sort(Arrays.java:1223)
       at java.util.Collections.sort(Collections.java:159)
       at org.displaytag.model.TableModel.sortRowList(TableModel.java:451)
       at org.displaytag.model.TableModel.sortPageList(TableModel.java:473)
       at org.displaytag.tags.TableTag.doEndTag(TableTag.java:1193)
at jsp_servlet._web_45_inf._pages._vote.__votelist._jsp__tag2(__votelist.java:414) at jsp_servlet._web_45_inf._pages._vote.__votelist._jsp__tag1(__votelist.java:295) at jsp_servlet._web_45_inf._pages._vote.__votelist._jsp__tag0(__votelist.java:255) at jsp_servlet._web_45_inf._pages._vote.__votelist._jspService(__votelist.java:223)
       at weblogic.servlet.jsp.JspBase.service(JspBase.java:34)
at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run (StubSecurityHelper.java:223) at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecuri
tyHelper.java:125)
at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:283) at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:175) at weblogic.servlet.internal.RequestDispatcherImpl.invokeServlet(RequestDispatcherImpl.java:500) at weblogic.servlet.internal.RequestDispatcherImpl.include(RequestDispatcherImpl.java:431) at weblogic.servlet.jsp.PageContextImpl.include(PageContextImpl.java:152) at org.apache.struts.tiles.TilesUtilImpl.doInclude(TilesUtilImpl.java:99)
       at org.apache.struts.tiles.TilesUtil.doInclude(TilesUtil.java:135)
at org.apache.struts.taglib.tiles.InsertTag.doInclude(InsertTag.java:760) at org.apache.struts.taglib.tiles.InsertTag$InsertHandler.doEndTag(InsertTag.java:892) at org.apache.struts.taglib.tiles.InsertTag.doEndTag(InsertTag.java:462)

at jsp_servlet._web_45_inf._pages._layout.__contentlayout._jsp__tag1(__contentlayout.java:155) at jsp_servlet._web_45_inf._pages._layout.__contentlayout._jspService(__contentlayout.java:95) <04/07/2007 12h30min14s BRT> <Error> <HTTP> <BEA-101020> <[weblogic.servlet.inte [EMAIL PROTECTED] - appName: '_appsdir_sdpClient_war', name: 'sdp
Client.war', context-path: '/sdpClient'] Servlet failed with Exception
org.displaytag.exception.RuntimeLookupException: LookupException while trying to fetch property "attrStartDate.time". Cause: Error looking up property "attrStartDate.time" in object type
"com.app.persistence.voting.VotingBean"..
       at org.displaytag.model.RowSorter.compare(RowSorter.java:148)
       at java.util.Arrays.mergeSort(Arrays.java:1284)
       at java.util.Arrays.mergeSort(Arrays.java:1295)
       at java.util.Arrays.mergeSort(Arrays.java:1295)
       at java.util.Arrays.sort(Arrays.java:1223)
       Truncated. see log file for complete stacktrace

Can I from a String bean parameter access it as "time" like you mentioned? Here is how I did:

<display:column title="Start Date" class="content-table"
   media="html csv xml excel pdf rtf" style="width=33%" sortable="true"
   sortProperty="attrStartDate.time">${vote.attrStartDate}</display:column>

Any Ideas?

Thanks again,
José Renato.

Chris Widhelm escreveu:
 sortProperty="attrEndDate.time"

And remove the comparator.

José Renato wrote:
Hi All,

I am still stucked here. Can someone give me some clue how can I sort a String date column properly?


I have a date field retrieved as plain String from database. When I try to sort the "date" column it does not work properly. So I extended display tag DefaultComparator as follows:

//...
public class DateStringComparator extends DefaultComparator {
   public int compare(Object dateOne, Object dateTwo) {
       int result = 0;
       final String mask = "dd/MM/yyyy HH:mm:ss";
       try {
Date d1 = DateWrapper.stringToDate(((String) dateOne).trim(), mask); result = d1.compareTo(DateWrapper.stringToDate(((String) dateTwo)
                   .trim(), mask));
       } catch (ParseException e) { e.priontStackTrace(); }
       return result;
   }
}

When declaring the String date column I do:

<display:column title="End Date" class="content-table"
   media="html csv xml excel pdf rtf" style="width=33%"
  comparator="com.app.web.util.DateStringComparator"
sortable="true" sortProperty="attrEndDate">${vote.attrEndDate}</display:column>

Here comes the problem. The table renders the comparator class name "com.app.web.util.DateStringComparator" instead of field value. I am using displaytag-1.1.1-2007-6-7.jar.

What am I missing here dudes? Can someone shed some light here :D

Thanks a lot,
José Renato.


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