Error in setting the query string parameter

Question

This is a vf page, trying to get &set the query string parameter The page compiled successfully and showing the list of related contacts but when I click the contact name link the following error occurs

Insufficient Privileges You do not have the level of access necessary to perform the operation you requested. Please contact the owner of the record or your administrator if access is necessary. For more information, seeInsufficient Privileges Errors.

<apex:page standardController="account">
  <apex:form >
   <apex:pageBlock title="contacts" >
    <apex:pageBlockTable value="{!account.contacts}" var="ca">
     <apex:column headerValue="Name" >
      <apex:commandLink > {! ca.name}
       <apex:param name="cid" value="{ca.id}"/>
       </apex:commandLink>
       </apex:column>
      <apex:column value="{!ca.email}"/>
    </apex:pageBlockTable>
   </apex:pageBlock>
   <apex:detail subject="{!$CurrentPage.parameters.cid}" relatedList="false"/>
  </apex:form>
</apex:page>

Anybody have solution for this problem?

Answer 1

Try following changes in the tag as below:

Change

<apex:commandLink > {! ca.name}
   <apex:param name="cid" value="{ca.id}"/>
</apex:commandLink>

to

<apex:commandLink action="/{!$CurrentPage.URL}?cid={!ca.id}"> 
 {! ca.name}
</apex:commandLink>