Only display field name records are not showing [closed]

Question

vf page is

<apex:page standardController="QuickCase__c" extensions="qs">
<apex:pageBlock title="Nominate user">
<apex:pageblockTable value="{!QuickCase__c}" var="quick">
<apex:column value="{!quick.Name}"/>


</apex:pageblockTable>

</apex:pageBlock>

</apex:page>

class

public with sharing class qs {
    List<Quickcase__c> Quick = new list<Quickcase__c>();
    public qs(ApexPages.StandardController controller) {


    }
    public qs  ()
{
Quick = [select id ,Name from Quickcase__c limit 5];
}


}

Answer 1

You need to change your code in following way.

Visualforce

<apex:page standardController="QuickCase__c" extensions="qs" action="{!init}">
    <apex:pageBlock title="Nominate user">
        <apex:pageblockTable value="{!Quick}" var="qk">
        <apex:column value="{!qk.Name}"/>
        </apex:pageblockTable>
    </apex:pageBlock>
</apex:page>

Controller

public with sharing class qs 
{
    public List<Quickcase__c> Quick {get;set;}
    public qs(ApexPages.StandardController controller) {

    }
    public void init()
    {
        Quick = [select id ,Name from Quickcase__c limit 5];
    }
}

Note: following changes have been made.

1. Rather than using second no argument constructor, changed it to init() method which is getting called from apex:page action.

2. Instead of using List<Quickcase__c> Quick = new list<Quickcase__c>();, following public getter-setter used: public List<Quickcase__c> Quick {get;set;}

3. You have incorrectly used <apex:pageblockTable value="{!QuickCase__c}", value should expect List of records.

I should suggest you go through trailheads to learn Visualforce.

Answer 2

You should initialize your extension in its one-parameter constructor. Also, you can't bind to the standard object to iterate over the query you've written, but instead need a public variable to bind to. The following changes would be appropriate for your code:

---

<apex:page standardController="QuickCase__c" extensions="qs">
  <apex:pageBlock title="Nominate user">
    <apex:pageblockTable value="{!quickCaseList}" var="quick">
      <apex:column value="{!quick.Name}"/>
    </apex:pageblockTable>
  </apex:pageBlock>
</apex:page>

---

public with sharing class qs {
  public List<Quickcase__c> quickCaseList { get; set; }
  public qs(ApexPages.StandardController controller) {
    quickCaseList = [select Name from Quickcase__c limit 5];
  }
}