You can try using the present tag ex :
<logic:present id="conflicts" name="ConflictResolutionForm"
property="conflicts" type="com.pioneer.sales.terrmaint.demo.ConflictBean">
before actually going into the iterate and checkbox tags. This will check to
see if the collection exists, before executing the logic inside the tag.
Regards,
Dimitar
-----Original Message-----
From: Mike Finn [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, March 27, 2002 12:54 PM
To: Struts Users Mailing List
Subject: RE: Struts 1.0.2 checkbox - Error Message: No collection found
Yu,
This looks like the same problem I posted this AM (subject = logic:iterate
and "no collection found"). I found that if the array actually has data in
it, everything works OK. It's only when it's empty or null that it blows up.
Post if you find a solution and I will do the same. I am going to try to
step through the source this afternoon.
Mike
-----Original Message-----
From: Yu, Yanhui [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, March 27, 2002 1:03 PM
To: '[EMAIL PROTECTED]'
Subject: RE: Struts 1.0.2 checkbox - Error Message: No collection found
Sorry I forgot that the reset method in the ActionForm looks like this:
==============================================================
public void reset(ActionMapping mapping, HttpServletRequest request)
{
cat.debug("ConflictResolutionForm reset");
/*
this.checked = false;
this.linenum = null;
this.field = null;
this.level = null;
this.currentValue = null;
this.overrideValue = null;
*/
if(conflicts != null) {
for(int i=0; i< conflicts.size(); i++) {
((ConflictBean) conflicts.get(i)).setChecked(false);
}
}
}
==============================================================
Looking forward to hearing any hints, thank you very much,
Yanhui
-----Original Message-----
From: Yu, Yanhui
Sent: Wednesday, March 27, 2002 12:00 PM
To: [EMAIL PROTECTED]
Subject: Struts 1.0.2 checkbox - Error Message: No collection found
Hi All,
We are using struts verions 1.0.2 here. I have a problem using checkbox in
a jsp, getting No collection found error. Here is my sample code and I
really appreciate if anyone can give me a hand on this.
in jsp
=====================================
<logic:iterate id="conflicts" name="ConflictResolutionForm"
property="conflicts"
type="com.pioneer.sales.terrmaint.demo.ConflictBean">
<tr>
<td><html:checkbox name="conflicts" property="checked"
/></td>
<td><bean:write name="conflicts" property="field" /> </td>
<td><bean:write name="conflicts" property="level" /> </td>
<td><bean:write name="conflicts" property="currentValue"
/></td>
<td><bean:write name="conflicts" property="overrideValue" />
</td>
</tr>
</logic:iterate>
=======================================
in ConflictBean class
========================================
private String linenum = null;
private String field = null;
private String level = null;
private String currentValue = null;
private String overrideValue = null;
private boolean checked = false;
// all public getters and setters for all the String attributes
public boolean getChecked() {
return checked;
}
public void setChecked(boolean _checked){
checked = _checked;
}
==================================================
in Action class
==================================================
ConflictResolutionForm conFlictForm = new ConflictResolutionForm();
ArrayList conflicts = new ArrayList();
// Fill in the list here
ConflictBean cb = new ConflictBean();
cb.setLinenum("1");
cb.setField("Field 1");
cb.setLevel("Area");
cb.setCurrentValue("012345678");
cb.setOverrideValue("012345678");
conflicts.add(cb);
conFlictForm.setConflicts(conflicts);
return (mapping.findForward("conflictresolution")); //set up in
struts-config.xml
====================================================
in ActionForm
=====================================================
private ArrayList conflicts = null;
public ArrayList getConflicts() {
return conflicts;
}
public void setConflicts(ArrayList _conflicts) {
conflicts = _conflicts;
}
public ConflictBean getConflicts(int index) {
return (ConflictBean) conflicts.get(index);
}
public void setConflicts(int index, ConflictBean conflict) {
conflicts.set(index,conflict);
}
======================================================
Any help would be greatly appreciated. What I did wrong here? Maybe
multibox is what I need?
Yanhui
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