need a customised pdf

Question

I have a table that shows 10 record and whenever i click on 'create PDF' button..whole page is rendered as PDF..But i have a requirement that if i select lets say any 5 record from the table using the check box..then only that records should appear in the pdf

my vf page:

<apex:page controller="queryaccountrecords"  >
<apex:panelGrid columns="2">
<apex:form >
<apex:pageBlock title="Account_Records">
<apex:repeat value="{!accts}" var="dbItem">
<apex:inputCheckbox id="ankita"/>
<apex:outputField value="{!dbItem.Name}" /><br/>
</apex:repeat>
</apex:pageBlock>
<apex:commandButton value="Create PDF" action="{!createpdf}"/>
</apex:form>
</apex:panelGrid>
</apex:page>

my controller:

public class queryaccountrecords {
    public Account[] accts{get;set;}
    public queryaccountrecords()
     {
        accts= [SELECT Name FROM Account LIMIT 10];
    }

    public pagereference createpdf()
    {
    pagereference redirect = new PageReference('/apex/generatepdf');
    redirect.setRedirect(true);
    return redirect;
}
    }

page that is rendered as pdf:

<apex:page controller="queryaccountrecords" renderAs="pdf" showHeader="false" sidebar="false">
<apex:panelGrid columns="2">
<apex:form >

<apex:pageBlock title="Account_Records">

<apex:repeat value="{!accts}" var="dbItem">
<apex:outputField value="{!dbItem.Name}" /><br/>
</apex:repeat>
<apex:commandButton value="Create Pdf" action="{!createpdf}"/>

</apex:pageBlock>
</apex:form>
</apex:panelGrid>
</apex:page>

can someone please help me?

Thanks Ankita Singh

Answer 1

I just went with @KeithC approach and implemented it in my dev org with some modifications. Below is the working code.

First Page:

<apex:page controller="queryaccountrecords">
    <apex:panelGrid columns="2">
        <apex:form >
            <apex:pageBlock title="Account_Records">
                <apex:repeat value="{!accts}" var="dbItem">
                    <apex:inputCheckbox value="{!dbItem.selected}" id="ankita"/>
                    <apex:outputField value="{!dbItem.sob.Name}" /><br/>
                </apex:repeat>
            </apex:pageBlock>
        <apex:commandButton value="Create PDF" action="{!createpdf}"/>
        </apex:form>
    </apex:panelGrid>
</apex:page>

Second page which is rendered as pdf:

<apex:page controller="queryaccountrecords" renderAs="pdf" showHeader="false" sidebar="false">
    <apex:panelGrid columns="2">
        <apex:form >
            <apex:pageBlock title="Account_Records">
                <apex:repeat value="{!accts}" var="dbItem">
                    <apex:outputField value="{!dbItem.sob.Name}" /><br/>
                </apex:repeat>
            <apex:commandButton value="Create Pdf" action="{!createpdf}"/>
            </apex:pageBlock>
        </apex:form>
    </apex:panelGrid>
</apex:page>

Controller:

public class queryaccountrecords {
    public class AccountWrapper {
        public Boolean selected {get; set;}
        public Account sob {get; set;}
        AccountWrapper(Account sob,Boolean selected) {
            this.sob = sob;
            this.selected = selected;
        }
    }
    public AccountWrapper[] accts {get;set;}
    public queryaccountrecords() {      
        accts = new AccountWrapper[] {};
        String s = ApexPages.currentPage().getParameters().get('ids');
        if(s != NULL && s != '') {
            Set<String> ids = new Set<String>(!String.isEmpty(s) ? s.split(',') : new Id[] {});            
            for (Account a : [SELECT Id, Name FROM Account WHERE Id IN : ids]) {
                AccountWrapper w = new AccountWrapper(a,false);
                accts.add(w);
            }
        }
        else {
            for (Account a : [SELECT Id, Name FROM Account LIMIT 10]) {
                AccountWrapper w = new AccountWrapper(a,false);
                accts.add(w);
            }
        }
    }
    public pagereference createpdf() {      
        pagereference redirect = new PageReference('/apex/generatepdf');
        redirect.setRedirect(true);
        Id[] ids = new Id[] {};
        for (AccountWrapper w : accts) {
            if (w.selected)
            ids.add(w.sob.Id);
        }
        redirect.getParameters().put('ids', String.join(ids, ','));
        return redirect;
    }
}

Hope it helps.

Answer 2

As well as needing a wrapper class to record the selection, the selected values need to be passed to the PDF page which will have a separate instance of the controller and so will not have the selections available.

Here is one way to pass the ID values (via a URL parameter):

public class AccountWrapper {
    public Boolean selected {get; set;}
    public Account sob {get; set;}
    AccountWrapper(Account sob) {
        this.sob = sob;
    }
}

public AccountWrapper[] accts {get;set;}

public PageReference createpdf() {
    PageReference pr = Page.generatepdf;
    pr.setRedirect(true);
    Id[] ids = new Id[] {};
    for (AccountWrapper w : accts) {
        if (w.selected) ids.add(w.sob.Id);
    }
    pr.getParameters().put('ids', String.join(ids, ','));
    return redirect;
}

Then in the controller constructor select any IDs passed in the ids parameter so the PDF page can then do its rendering based on the selected flag:

public queryaccountrecords {
    String s = ApexPages.currentPage().getParameters().get('ids');
    Set<String> ids = new Set<String>(!String.isEmpty(s) ? s.split(',') : new Id[] {});
    accts = new AccountWrapper[] {};
    for (Account a : [SELECT Id, Name FROM Account LIMIT 10]) {
        AccountWrapper w = new AccountWrapper(a);
        a.selected = ids.contains(a.Id);
    }
}

Answer 3

Here is the link for the Wrapper class implementation

https://developer.salesforce.com/page/Wrapper_Class

This explains very clearly how to implement the wrapper class and for the pdf part you may need to do some more coding .