Weird behavior (bug) of inputCheckbox in the visualforce - visualforce

Question

inputCheckbox and commandLink/commandButton can't work together !!
Case 1:
Try the codes.
The visualforce action in this one can't work.
<apex:commandLink action="{!SelectTicket}" reRender="outputPanel">
<apex:inputCheckbox value="{!ordsOptions[o]}"/>
<apex:param name="selected" value="{!o.id}" assignTo="{!selected}"/>
</apex:commandLink>
Without value="{!ordsOptions[o]}" in the inputCheckbox. The almost same code just works fine.
<apex:commandLink action="{!SelectTicket}" reRender="outputPanel">
<apex:inputCheckbox/>
<apex:param name="selected" value="{!o.id}" assignTo="{!selected}"/>
</apex:commandLink>
Case 2:
It doesn't fire the action at all when add the inputCheckbox in another column.
<apex:dataTable border="4" value="{!ords}" var="o">
<apex:column >
<apex:commandLink action="{!SelectTicket}" reRender="outputPanel">
<apex:inputCheckbox />
<apex:param name="selected" value="{!o.id}" assignTo="{!selected}"/>
</apex:commandLink>
</apex:column>
<apex:column ><apex:inputCheckbox value="{!ordsOptions[o]}"/></apex:column>
<apex:column ><apex:outputText value="{!ordsOptions[o]}"/></apex:column>
<apex:column value="{!o.Id}"/>
<apex:column value="{!o.Name}"/>
</apex:dataTable>
It just works fine without inputCheckbox along with commandLink:
<apex:dataTable border="4" value="{!ords}" var="o">
<apex:column >
<apex:commandLink action="{!SelectTicket}" reRender="outputPanel">
<apex:inputCheckbox />
<apex:param name="selected" value="{!o.id}" assignTo="{!selected}"/>
</apex:commandLink>
</apex:column>
<-- <apex:column ><apex:inputCheckbox value="{!ordsOptions[o]}"/></apex:column> -->
<apex:column ><apex:outputText value="{!ordsOptions[o]}"/></apex:column>
<apex:column value="{!o.Id}"/>
<apex:column value="{!o.Name}"/>
</apex:dataTable>
The whole codes
vf:
<apex:page controller="SelectRadio" sidebar="false">
<apex:outputPanel id="outputPanel">
<apex:form >
<apex:dataTable border="4" value="{!ords}" var="o">
<apex:column >
<apex:commandLink action="{!SelectTicket}" reRender="outputPanel">
<apex:inputCheckbox />
<apex:param name="selected" value="{!o.id}" assignTo="{!selected}"/>
</apex:commandLink>
</apex:column>
<apex:column ><apex:inputCheckbox value="{!ordsOptions[o]}"/></apex:column>
<apex:column ><apex:outputText value="{!ordsOptions[o]}"/></apex:column>
<apex:column value="{!o.Id}"/>
<apex:column value="{!o.Name}"/>
</apex:dataTable>
<apex:commandButton action="{!rSfdc}" value="按鍵"/>
</apex:form>
<hr/>
<h1>Debug</h1>
<p>ordsOptions = {!ordsOptions}</p>
<p>ordsOptionName = {!ordsOptionName}</p>
<p>selected = {!selected}</p>
</apex:outputPanel>
</apex:page>
class:
public with sharing class SelectRadio {
public List<String> vars {get;set;}
public List<Custom_Object__c> ords {get; set;}
public Map<Id,Boolean> ordsOptions {get; set;}
public Map<Id,String> ordsOptionName {get; set;}
public Id selected {get;set;}
public SelectRadio(){
ordsOptions = new Map<Id,Boolean>();
ordsOptionName = new Map<Id,String>();
ords = [ SELECT Id, Name FROM Custom_Object__c ORDER BY Name ];
for (Custom_Object__c tmp : ords) {
ordsOptions.put(tmp.Id, false);
ordsOptionName.put(tmp.Id, tmp.Name);
}
}
public pageReference SelectTicket() {
for(Custom_Object__c tmp : ords) if(tmp.Id == selected) ordsOptions.put(tmp.Id, true); else ordsOptions.put(tmp.Id, false);
return null;
}
public PageReference rSfdc() {
PageReference rp = new PageReference('http://www.salesforce.com');
rp.setRedirect(true);
return rp;
}
}

Answer 1

It's not a bug at all. And, it has to be so.
It is all about the logic of OO programming.
Finally, I found myself the answer.
Check the answer here: http://boards.developerforce.com/t5/Visualforce-Development/Strange-Bug-of-the-apex-inputCheckbox/m-p/631629/highlight/false#M65163
It can be used to replace the selectRadio, and pattern code is more flexible than apex:selectRadio. The sample pattern is easily to use with apex:dataTable and apex:repeat. That's the reason to write the code. Enjoy it with me if you like.