trigger predupphone on Account (before insert) {        
  for(Account a:trigger.new)    
 {        
list<Account> la= [select id from Account where phone=:a.Phone];          
if(la.size() > 0)        
 {           
  a.Phone.adderror('phone already exist');         
 }            
  }

iam just able to seen headers only i have data but iam unable to seen in pageblock table.
according to my knowledge that is correct only but where is the problem iwant to know

my vf page 


<apex:page controller="Multipleobjwrapper">
    <apex:form >
        <apex:pageBlock >
            <apex:pageBlockSection >
                <apex:pageBlockTable value="{!wrplst}" var="w">
                    <apex:column headervalue="AccountName" value="{!w.acc.name}" />
                    <apex:column headervalue="ContactName" value="{!w.con.name}"/>
                    <apex:column headervalue="OpportunityName" value="{!w.opp.name}"/>
                    <apex:column headervalue="LeadName" value="{!w.led.name}"/>
                    <apex:column headervalue="CreditCardName" value="{!w.crd.name}"/>
                    <apex:column headervalue="Employee" value="{!w.emp.name}"/>
                    <apex:column headervalue="Student" value="{!w.stu.name}"/>
                    <apex:column headervalue="faculty" value="{!w.fac.name}"/>
                    <apex:column headervalue="paymentName" value="{!w.pay.name}"/>
                    <apex:column headervalue="pharmacyName" value="{!w.phm.name}"/>
                </apex:pageBlockTable>
            </apex:pageBlockSection>
        </apex:pageBlock>
    </apex:form>
</apex:page>




public class Multipleobjwrapper {
    public list<Account>      acclst{get; set;}
    public list<Contact>      conlst{get; set;}
    public list<Opportunity>  opplst{get; set;}
    public list<Lead>        ledlst{get; set;}
    public list<CreditCard__c>  crdlst{get; set;}
    public list<Employee__c>    emplst{get; set;}
    public list<Student__c>     stdlst{get; set;}
    public list<faculty__c>  faclst{get; set;}
    public list<payment__c>  paylst{get; set;}
    public list<pharmacy__c>  phmlst{get; set;}
    public list<Mywrapper> wrplst{get; set;}
    
    
    public Multipleobjwrapper(){
        acclst=[select Id,name from Account];
        system.debug('accounts'+acclst);
        conlst=[select id,name from Contact];
        opplst=[select id,name from Opportunity];
        ledlst=[select id,name from Lead];
        crdlst=[select id,Name__c from CreditCard__c];
        emplst=[select id,Lastname__c from Employee__c];
        stdlst=[select id,Name from Student__c];
        faclst=[select id,Name from faculty__c];
        paylst=[select id,Name from payment__c];
        phmlst=[select id,Name from pharmacy__c];
        
        wrplst=new list<Mywrapper>();
  
        for(integer i=0; i<10; i++)
        {
                        if(wrplst.size()!=0)
            {
          
                   wrplst.add(new Mywrapper (acclst[i],conlst[i],opplst[i],ledlst[i],crdlst[i],emplst[i],stdlst[i],faclst[i],paylst[i],phmlst[i]));
           
                   
                
            }
        }
    }
    
    public class Mywrapper{
        public Account acc{get; set;}
        public Contact con{get; set;}
        public Opportunity opp{get; set;}
        public Lead led{get; set;}
        public CreditCard__c crd{get; set;}
        public Employee__c emp{get; set;}
        public Student__c stu{get; set;}
        public faculty__c fac{get; set;}
        public payment__c pay{get; set;}
        public pharmacy__c phm{get; set;}
        
        public Mywrapper(Account a,Contact c,Opportunity o,Lead l,CreditCard__c cr, Employee__c e,
                         Student__c s,faculty__c f,payment__c p,pharmacy__c ph)
        {
            acc=a;
            con=c;
            opp=o;
            led=l;
            crd=cr;
            emp=e;
            stu=s;
            fac=f;
            pay=p;
            phm=ph;
            
        }
    }
    
    

}






 

I have a custom object Employee in that ihave lookup field city.
i have another custom object city.
i want to insert Employee but city not will be inserted.
how can i insert.
if it will insert in city object as well as employee object it is possible using standard controller.
it is only be possible in controller.

please helpl me 

thanks 
devaraj

phone                  count
995566                 2
995566                 2
123456                 1
 

iam just able to seen headers only i have data but iam unable to seen in pageblock table.
according to my knowledge that is correct only but where is the problem iwant to know

my vf page 


<apex:page controller="Multipleobjwrapper">
    <apex:form >
        <apex:pageBlock >
            <apex:pageBlockSection >
                <apex:pageBlockTable value="{!wrplst}" var="w">
                    <apex:column headervalue="AccountName" value="{!w.acc.name}" />
                    <apex:column headervalue="ContactName" value="{!w.con.name}"/>
                    <apex:column headervalue="OpportunityName" value="{!w.opp.name}"/>
                    <apex:column headervalue="LeadName" value="{!w.led.name}"/>
                    <apex:column headervalue="CreditCardName" value="{!w.crd.name}"/>
                    <apex:column headervalue="Employee" value="{!w.emp.name}"/>
                    <apex:column headervalue="Student" value="{!w.stu.name}"/>
                    <apex:column headervalue="faculty" value="{!w.fac.name}"/>
                    <apex:column headervalue="paymentName" value="{!w.pay.name}"/>
                    <apex:column headervalue="pharmacyName" value="{!w.phm.name}"/>
                </apex:pageBlockTable>
            </apex:pageBlockSection>
        </apex:pageBlock>
    </apex:form>
</apex:page>




public class Multipleobjwrapper {
    public list<Account>      acclst{get; set;}
    public list<Contact>      conlst{get; set;}
    public list<Opportunity>  opplst{get; set;}
    public list<Lead>        ledlst{get; set;}
    public list<CreditCard__c>  crdlst{get; set;}
    public list<Employee__c>    emplst{get; set;}
    public list<Student__c>     stdlst{get; set;}
    public list<faculty__c>  faclst{get; set;}
    public list<payment__c>  paylst{get; set;}
    public list<pharmacy__c>  phmlst{get; set;}
    public list<Mywrapper> wrplst{get; set;}
    
    
    public Multipleobjwrapper(){
        acclst=[select Id,name from Account];
        system.debug('accounts'+acclst);
        conlst=[select id,name from Contact];
        opplst=[select id,name from Opportunity];
        ledlst=[select id,name from Lead];
        crdlst=[select id,Name__c from CreditCard__c];
        emplst=[select id,Lastname__c from Employee__c];
        stdlst=[select id,Name from Student__c];
        faclst=[select id,Name from faculty__c];
        paylst=[select id,Name from payment__c];
        phmlst=[select id,Name from pharmacy__c];
        
        wrplst=new list<Mywrapper>();
  
        for(integer i=0; i<10; i++)
        {
                        if(wrplst.size()!=0)
            {
          
                   wrplst.add(new Mywrapper (acclst[i],conlst[i],opplst[i],ledlst[i],crdlst[i],emplst[i],stdlst[i],faclst[i],paylst[i],phmlst[i]));
           
                   
                
            }
        }
    }
    
    public class Mywrapper{
        public Account acc{get; set;}
        public Contact con{get; set;}
        public Opportunity opp{get; set;}
        public Lead led{get; set;}
        public CreditCard__c crd{get; set;}
        public Employee__c emp{get; set;}
        public Student__c stu{get; set;}
        public faculty__c fac{get; set;}
        public payment__c pay{get; set;}
        public pharmacy__c phm{get; set;}
        
        public Mywrapper(Account a,Contact c,Opportunity o,Lead l,CreditCard__c cr, Employee__c e,
                         Student__c s,faculty__c f,payment__c p,pharmacy__c ph)
        {
            acc=a;
            con=c;
            opp=o;
            led=l;
            crd=cr;
            emp=e;
            stu=s;
            fac=f;
            pay=p;
            phm=ph;
            
        }
    }
    
    

}






 

Hi i want to develop a page block table with all the account records ,each record contains a checkbox in the pageblocktable ,when a user check/select some records on the table and press show selected button it need to display selected records in another pageblocktable. i am new to this and i am in learning stage.i have referred http://wiki.developerforce.com/page/Wrapper_Class but the example wont work . I have developed visualforce code but confused with the adding controller and wrapperclass.can any one help me plsss.. Thanks&Regards Veer