Hi Everyone

I want to add more product in a perticular Quote.I know the relationship between Quote,QuoteLineItem ,Pricebook2,Product2 and PricebookEntry.my first product is saved but when I am  trying to add more product under a perticular Quote an error is fired.

"Id is not specified in an update call.."  .I have written update statement to update Quote because there is a required field Pricebook2Id in Quote.when I  am creating a new product at that time assisgning a unit price through PricebookEntry.Because Product2 and Pricebook2 are related in a many to many relationship and the junction object is PricebookEntry.

My problem is that how can we update PricebookId field In Quote each time when a Product is created.

That means there is one record in Quote but I have to created more product inside perticular Quote.

I am beginner in salesforce.May be I canot express my problem.So I request please help me in a simpler way....

Here is my code.

<apex:page controller= pcontactdetailcontroller>

................

...............

       <!----QUOTE table-->
  <apex:pageBlockSection title="Quote Details of a Perctcular Opportunity" rendered="{!table=='Show'}">
           
                <B>OPPORTUNITY NAME:&nbsp;{!Opportunity1.Name}</B>
            <!--<apex:outputField label="OPPORTUNITY" value="{!OpportunityContactRoles.Opportunity.Name}"/>-->
              <apex:outputPanel style="float:middle">
                  <p><B> All Quotes </B></P>
                 <apex:dataTable value="{!Opportunity1.Quotes}" var="Qut" cellpadding="2" border="1"  rowClasses="odd,even" >
           
                    <apex:column headerValue="Quote Name">
                    <apex:commandLink value="{!Qut.Name}"  title="to see product" style="font-size:15;color:blue;" action="{!forProduct}">
                     <apex:param name="quoteId" value="{!Qut.Id}"/>
                     </apex:commandLink>
                    </apex:column>
                     <apex:column headerValue="Status">{!Qut.Status}</apex:column>
               
                   </apex:dataTable>
                  </apex:outputPanel>
                  <apex:commandButton value="Add Quote" action="{!toaddQoute}"/>
             </apex:pageBlockSection>

 <!--product table------>
                 <apex:pageBlockSection title="Product Details" rendered="{!asish=='Show'}">
            
                  <B>OPPORTUNITY NAME:&nbsp;{!Opportunity1.Name}</B><br/><br/>
                  <B>QUOTE NAME:&nbsp;{!Quote1.Name}</B>
               <apex:outputPanel style="float:middle">
                  <p><B> Product Details </B></P>
                  <apex:datatable value="{!quote1.QuoteLineItems}" var="pdct" cellpadding="2" border="1"  rowClasses="odd,even">
                  <apex:column headerValue="Product Name">{!pdct.PricebookEntry.Product2.Name}</apex:column>
                  <apex:column headerValue="Unit Price">{!pdct.UnitPrice}</apex:column>
                  <apex:column headerValue="Quantity">{!pdct.Quantity}</apex:column>
                  <apex:column headerValue="Sub Total">"{!pdct.Subtotal}</apex:column>
                  <apex:column headerValue="Discount">"{!pdct.Discount}</apex:column>
                  <apex:column headerValue="TotalPrice">{!pdct.TotalPrice}</apex:column>
                  
                  </apex:datatable>
                  
               </apex:outputPanel>
               <apex:commandButton value="Add Product" action="{!toaddProduct}"/>
              
       </apex:pageBlockSection>

.......................

         <!--PRODUCT SECTION FOR ENTRY-->
            
            <apex:pageBlockSection title="Product Details" rendered="{!visible=='Step3'}">
            <apex:inputField value="{!Product.Name}"/>
           <!--<apex:inputField value="{!PricebookEntry.UnitPrice}"/>-->
            <apex:inputField value="{!QuoteLineItem.UnitPrice}"/>
            <apex:inputField value="{!QuoteLineItem.Quantity}"/>
             <apex:inputField value="{!QuoteLineItem.Discount}"/>
            <apex:inputCheckbox value="{!PricebookEntry.IsActive}"/>
           
            <apex:commandButton value="save" action="{!tosaveProduct}" style="float:left"/>
            
            </apex:pageBlockSection>

   </apex:page>

here is my controller code.....

public class pcontactdetailcontroller {

..................

.................

 public Quote quote{get;set;}

 public PricebookEntry pbentry{get;set;}
     public Pricebook2 pb{get;set;}
     public Product2 product{get;set;}
     public QuoteLineItem qutlineitem{get;set;}

 public Id quoteId{get;set;}

 public pcontactdetailcontroller() {

 pb= new Pricebook2();
      pbentry= new PricebookEntry(UseStandardPrice=true,UnitPrice=0.00);
      product=new Product2();
      qutlineitem=new QuoteLineItem();

}

 public Quote getQuote() {
       return quote;
       }

public Product2 getProduct2() {
    
        return product;
        }
     public Pricebook2 getPricebook2() {
    
        return pb;
        }
     public PricebookEntry getPricebookEntry() {
    
        return pbentry;
        }
     public QuoteLineItem getQuoteLineItem() {
    
       return qutlineitem;
       }

 
    //saving Quote and opening product entry section    
         
    public PageReference tosaveQuote() {
 
       quote.BillingName=contact.Account.Name;
       quote.ShippingName=contact.Account.Name;
       quote.ContactId =contact.Id;
       quote.Phone=contact.MobilePhone;
       quote.Email= contact.Email;
 
      // System.debug('########## quoteOpportunityId######'+ quote.OpportunityId);
       insert quote;
    
       visible='Step3';
   
    // insert quote1;
       return null;
       }
       
    //saving Product   
    
    
   public PageReference tosaveProduct() {
 
       insert product;
 
       pb.Name='Standard';
 
       insert pb;
       pbentry.Product2Id=product.Id;
       pbentry.Pricebook2Id=pb.Id;
    // pbentry.UnitPrice=0.00;  
    // pbentry.UseStandardPrice=true;
   
       insert pbentry;
       quote.Pricebook2Id=pb.Id;
       update quote;
       qutlineitem.PricebookEntryId = pbentry.Id;
       qutlineitem.quoteId=quote.Id;
       insert qutlineitem;
       visible=null;
       Id Id = ApexPages.currentPage().getParameters().get('Id');
       PageReference samepage= new PageReference('/apex/pcontactdetail?id='+id);
       samepage.setRedirect(true);
       return  samepage;
   }

 public PageReference forProduct() {
    
       quoteId = ApexPages.currentPage().getParameters().get('quoteId');
      quote1= [select Id,Name,(select Id,PricebookEntry.Product2.Name,UnitPrice,Quantity,Subtotal,Discount,TotalPrice From QuoteLineItems) from Quote where Id=:quoteId];
    
     asish = 'Show';
      return null;
   }

 public PageReference toaddProduct() {
       visible = 'Step3';
       return null;
       }
  }

I have sent necessary code at which I am facing problem.I have faced problem in the line

Update Quote;

kindly reply me as soon as possible...