Wrapper Class : Delete and Update Selected Records Using Wrapper Class

In below example we will learn about how we can delete and Update selected records using wrapper Class.



Wrapper Class:

global Class Casecls{
    
    List<CaseclsInner> CaseInList = new List<CaseclsInner>();
    public Case CaseType{get;set;}
    
    global casecls(){
    CaseType = new Case();
    }
        
    global Class CaseclsInner{
        
        global Case CaseObj{get;set;}
        global Boolean checkboxObj{get;set;}
        
        global CaseclsInner(){
        }                
    }
    
    public List<CaseclsInner> getAllCaseRecords(){
                        
        for(Case c:[Select Id,CaseNumber,Type FROM Case]){
            CaseclsInner caseInobj = new CaseclsInner();
            caseInobj.CaseObj = c;
            CaseInList.add(caseInobj);            
        }        
        return CaseInList;        
    }
    
    public pagereference DeleteRecords(){
        
        List<Case> cList = new List<Case>();
        //Iterating through the list
        for(integer i=0;i<CaseInList.size();i++)
        {  
            if(CaseInList[i].checkboxObj == true)
            {
                //deleting student records based on lists index
                cList.add(CaseInList[i].CaseObj);
            }                        
        }
        
        delete cList;
            
        pagereference ref = new pagereference('/apex/CaseclsDelete');
        ref.setredirect(true);
        return ref;                
    }
    
    public pagereference ChangeType(){
        
        List<Case> cList = new List<Case>();
        //Iterating through the list
        for(integer i=0;i<CaseInList.size();i++)
        {  
            if(CaseInList[i].checkboxObj == true)
            {                
                CaseInList[i].CaseObj.Type = CaseType.type;                
                cList.add(CaseInList[i].CaseObj);
            }                        
        }
        
        update cList;
            
        pagereference ref = new pagereference('/apex/CaseclsDelete');
        ref.setredirect(true);
        return ref;                        
    }    
}

Visualforce Page:-

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<apex:page Controller="Casecls"> <apex:form > <apex:pageBlock > <apex:pageblockSection > <apex:commandButton action="{!DeleteRecords}" value="Delete Selected Records"/><br></br> <apex:commandButton value="Change Type Of Selected Records" action="{!Changetype}" reRender="theTable"/> <apex:inputField value="{!CaseType.type}"/> </apex:pageblockSection> <apex:pageblockTable value="{!AllCaseRecords}" var="v"> <apex:column headerValue="Checkbox"> <apex:inputCheckbox value="{!v.checkboxobj}"/> </apex:column> <apex:column value="{!v.CaseObj.CaseNumber}"/> <apex:column value="{!v.CaseObj.Type}"/> </apex:pageblockTable> </apex:pageBlock> </apex:form> </apex:page>

Output :-