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Shruthi NarsiShruthi Narsi 

Variable does not exist: selectedProducts

I am getting error 'Variable does not exist: selectedProducts' Request you to help me fix the error. I need to display the list of existing products . like the below pic. All objects are custom
User-added image

Controller class

global class ProductSearchPopupController {
    
    public String query {get; set;}
    public List<PricebookEntry__c> products {get; set;}
    public List<wrapProduct> wrapProductList {get; set;}
    public List<PricebookEntry__c> selectedProduct{get;set;}
    public List<QuoteLineitem__c> quoteLineList{get;set;}
    public List<wrapProduct> selectedWrapperList{get;set;}
    public Boolean normalList{get;set;}
    public Boolean selectedList{get;set;}
    public Boolean block{get;set;}
    public Boolean block1{get;set;}
    public Boolean block2{get;set;}
    public String SalesPrice {get; set;}
    public integer Discount {get; set;}
    public String Quantity {get; set;}
    public String ServiceDate {get; set;}
    Id recordId;
    
    
    public ProductSearchPopupController(ApexPages.StandardController controller){
        recordId = controller.getId();
        SalesPrice='';
        Discount=0;
        Quantity='';
        ServiceDate='';
        system.debug('recordId '+recordId);
        wrapProductList = new List<wrapProduct>();
        selectedWrapperList = new List<wrapProduct>();
        normalList = true;
        selectedList = false;
        block = true;
        block1 = false;
        block2 = false;
    }
    public PageReference runQuery(){
        if(Test.isRunningTest()){
            query='Test';
        }
        system.debug('this query '+query);
        if(query == null || query == ''){
            system.debug('query '+query);
            ApexPages.addmessage(new ApexPages.message(ApexPages.severity.Info,'Please enter the product to be searched'));
            return null;
        }
        
        List<List<PricebookEntry__c>> searchResults=[FIND :query IN ALL FIELDS RETURNING PricebookEntry__c (id, Name, ProductCode__c, Product2Id__r.Product_Description__c,UnitPrice__c, UseStandardPrice__c)];
        system.debug('searchResults '+searchResults[0].size());
        System.debug('searchResults  result ' + searchResults[0]);       
        System.debug('oth  result ' + SearchResults[0]);
        if(searchResults[0]!=null){
            for(PricebookEntry__c a: searchResults[0]) {
                // As each Account is processed we create a new wrapAccount object and add it to the wrapAccountList
                wrapProductList.add(new wrapProduct(a));
                block = true;   block1 = true;   block2 = false;
            }
        }
        return null;
    }
    public void processSelected() {
   selectedProducts = new List<Product2__c>();
 
        for(wrapProducts wrapProductObj : wrapAccountList) {
            if(wrapProductObj.selected == true) {
                selectedProducts.add(wrapProductObj.acc);
            }
        }
    }
 
 
    // This is our wrapper/container class. A container class is a class, a data structure, or an abstract data type whose instances are collections of other objects. In this example a wrapper class contains both the standard salesforce object Account and a Boolean value
    public class wrapProducts {
        public Product2__c acc {get; set;}
        public Boolean selected {get; set;}
 
        //This is the contructor method. When we create a new wrapAccount object we pass a Account that is set to the acc property. We also set the selected value to false
        public wrapProducts(Product2__c a) {
            acc = a;
            selected = false;
        }
    }
    public PageReference ProceedWithSelectedToNextPage(){
        selectedWrapperList = new List<wrapProduct>();
        normalList = false;
        selectedList = true;
        for(wrapProduct selectedWrapObj: wrapProductList){
            system.debug('selectedWrapObj.selected  ---------'+selectedWrapObj.selected);
            if(selectedWrapObj.selected == true)
                selectedWrapperList.add(selectedWrapObj);
        }
        system.debug('selectedWrapperList size ---------'+selectedWrapperList.size());
        PageReference pageRef = new PageReference('/apex/AccountOpportunityTwoPage');
        pageRef.setRedirect(false);
        return pageRef;
    }
    
 
      
    public void SelectProduct() {
        selectedProduct = new List<PricebookEntry__c>();
        for(wrapProduct wrapProductObj : wrapProductList) {
            if(wrapProductObj.selected == true) {
                selectedProduct.add(wrapProductObj.acc);
                block = false;  block1 = false;  block2 = true;
                
            }
        }
    }
    
    public void GoBack() {
        block = true;
        block1 = true;
        block2 = false;
    }
    
    global   class wrapProduct {
        public PricebookEntry__c acc {get;set;}
        public Boolean selected {get;set;}
        public wrapProduct(PricebookEntry__c p) {
            this.acc = p;
            this.selected = false;
        }
    }
    
    public pagereference saveproduct(){
        List<QuoteLineitem__c> quoteLineList = new  List<QuoteLineitem__c>();
        if(Test.isRunningTest()){
            insertTestData();
        }
        if(!selectedProduct.isEmpty()){
            for(PricebookEntry__c sp:selectedProduct){
                system.debug('sp '+sp);
                QuoteLineitem__c qli = new QuoteLineitem__c();
                qli.QuotesId__c = recordId;
                qli.ListPrice__c = sp.UnitPrice__c;
                qli.UnitPrice__c = sp.UnitPrice__c;
                qli.Product2Id__c = sp.Product2Id__c;    
                if(Discount!=0 || Discount!=null){
                    qli.Discount__c = Discount;
                }
                quoteLineList.add(qli);
            }
            
            if(quoteLineList.size()>0){
                insert quoteLineList;
                PageReference pageRef = new PageReference('https://proseraa.lightning.force.com/lightning/r/Quotes__c/'+recordId+'/view');
                pageRef.setRedirect(true);
                return pageRef;
            }
        }
        return null;
    }
    public void insertTestData(){
        Product2__c testProduct = new Product2__c();
            testProduct.Name='Test product';
            insert testProduct;
            PricebookEntry__c testpbe = new PricebookEntry__c();
                testpbe.Name='Test PriceBookEntry';
                testpbe.UnitPrice__c =123;
                testpbe.Product2Id__c=testProduct.Id;
                insert testpbe;
            selectedProduct.add(testpbe);
    }
}
 Vf Code
User-added image<apex:page standardController="Quotes__c" extensions="ProductSearchPopupController" showHeader="false" sidebar="false" lightningStylesheets="true">
   
    <apex:form id="form" >
        <apex:pageMessages ></apex:pageMessages>
        <apex:messages />
        <div style="width 100%">
            <apex:pageBlock title="Add Products" id="block" rendered="{!block}"> 
                <centre>
                    <div align="center"  >
                   <apex:pageBlockSection columns="1" id="section" > 
                        Enter the product to be added and select Go<br/>
                        
                        <apex:inputText value="{!query}" id="query" style="width: 1200px; height: 40px;"/> 
                    </apex:pageBlockSection> 
                  </div>
                </centre>
                <right>
                <apex:commandButton value="Go" action="{!runQuery}" style="align: right:100px;border-style:solid;
                     color:white; position:relative;background-color:rgba(13, 112, 165, 1);"/>
                <apex:commandButton value="Cancel" action="{!cancel}" style="float: centre:200px ;border-style:solid;
                     color:rgb(21, 137, 238); background-color:white;" />
                      </right>
            </apex:pageBlock>
                
            <apex:pageBlock id="block1" rendered="{!block1}" >
                <apex:pageBlockSection columns="1">
                    <apex:pageBlockTable value="{!wrapProductList}" var="accWrap">
                        <apex:column >
                            <apex:facet name="header">
                                <apex:inputCheckbox onclick="selectAllCheckboxes(this,'inputId')"/>
                            </apex:facet>
                            <apex:inputCheckbox value="{!accWrap.selected}" id="inputId"/>
                        </apex:column>
                        <apex:column headerValue="Name">
                            <apex:outputLink value="#">{!accWrap.acc.Name}</apex:outputLink>       
                        </apex:column>
                        <apex:column headerValue="Product Code">
                            <apex:outputText value="{!accWrap.acc.ProductCode__c}"  />       
                        </apex:column>
                        <apex:column headerValue="Product Description">
                            <apex:outputText value="{!accWrap.acc.Product2Id__r.Product_Description__c}"  />       
                        </apex:column>
                        <apex:column headerValue="Unit Price">
                            <apex:outputText value="{!accWrap.acc.UnitPrice__c}"  />  
                        </apex:column>
                        <apex:column headerValue="Standard Price">
                            <apex:outputText value="{!accWrap.acc.UseStandardPrice__c}"  />  
                        </apex:column>
                    </apex:pageBlockTable>  
                    <apex:commandButton value="Next"   action="{!processSelected}" style="float: right;border-style:solid;
                     color:white; background-color:rgba(13, 112, 165, 1);align-items: right;justify-content:right;"/>  
                </apex:pageBlockSection>
            </apex:pageBlock>
        </div>
        <div>
            <apex:pageBlock id="block2" rendered="{!block2}" >
                <apex:pageblockSection title="All Products" collapsible="false" columns="3">
                    <apex:pageBlockTable value="{!selectedProduct}" var="c" id="table2" title="Selected Products">
                        <apex:column value="{!c.Name}" headerValue="Product Name"/>
                        <apex:column headerValue="Sales Price">
                            <apex:inputText value="{!c.UnitPrice__c}" id="UnitPrice" /> 
                        </apex:column>
                        <apex:column headerValue="Discount">
                            <apex:inputText value="{!discount}" id="discount" /> 
                        </apex:column>
                        <apex:column headerValue="Quantity">
                            <apex:inputText value="{!quantity}" id="quantity" /> 
                        </apex:column>
                    </apex:pageBlockTable>  
                </apex:pageblockSection>
                <apex:commandButton action="{!GoBack}" value="Back" style="border-style:solid;
                     color:white; background-color:rgba(13, 112, 165, 1);"/>
                <apex:commandButton action="{!saveproduct}" value="Save" style="float: right;border-style:solid;
                     color:white; background-color:rgba(13, 112, 165, 1);"/>
                <apex:commandButton value="Cancel" oncomplete="doRedirect()" style="float: right;border-style:solid;
                     color:rgb(21, 137, 238); background-color:white;"/>           
            </apex:pageBlock>
            </div>
           
        
    </apex:form>
</apex:page>
 
Best Answer chosen by Shruthi Narsi
Patrick KaiserPatrick Kaiser
Hello Shruthi,

on the first view it looks like you have not declared your variable selectedProducts.

Try to replace the line
selectedProducts = new List<Product2__c>();
with 
ist<Product2__c> selectedProducts = new List<Product2__c>();

Greetings