Wednesday, September 15, 2010

Checkbox in DataTable

Displaying the check box in a data table or page block table is a general requirement in every project. with the help of wrapper class we can display the checkboxes in a data table (Which Fetches the records automatically on check box selected). For the select all checkbox we need to add small javascript so that if we select the header checkbox it will select all the checkboxes.
Please watch the below figure for details.

Image:Checkbox_in_DataTable.PNG


Page Code as follows:

<apex:page controller="Checkbox_Class" Tabstyle="Account">
<apex:form>
 
<apex:pageBlock Title="Accounts with CheckBoxes">
<apex:pageBlockSection Title="List of Available Accounts">
<apex:dataTable value="{!accounts}" var="a" columnswidth="50px,50px" cellpadding="4" border="1">
<apex:column >
<apex:facet name="header"> <apex:inputCheckbox >
<apex:actionSupport event="onclick" action="{!GetSelected}" onsubmit="checkAll(this)" rerender="Selected_PBS"/>
</apex:inputCheckbox></apex:facet>
<apex:inputCheckbox value="{!a.selected}" id="checkedone">
<apex:actionSupport event="onclick" action="{!GetSelected}" rerender="Selected_PBS"/>
</apex:inputCheckbox></apex:column>
<apex:column headervalue="Account Name" value="{!a.acc.Name}" />
<apex:column headervalue="Account Number" value="{!a.acc.AccountNumber}" />
<apex:column headervalue="Phone" value="{!a.acc.Phone}" />
</apex:dataTable>
</apex:pageBlockSection>

<apex:pageBlockSection Title="Selected Accounts" id="Selected_PBS">
<apex:dataTable value="{!SelectedAccounts}" var="s" columnswidth="50px,50px" cellpadding="4" border="1">
<apex:column headervalue="Account Name" value="{!s.Name}" />
<apex:column headervalue="Account Number" value="{!s.AccountNumber}" />
<apex:column headervalue="Phone" value="{!s.Phone}" />
</apex:dataTable>
</apex:pageBlockSection>

</apex:pageBlock>
</apex:form>
<script>
function checkAll(cb)
{
var inputElem = document.getElementsByTagName("input");
for(var i=0; i<inputElem.length; i++)
{
if(inputElem[i].id.indexOf("checkedone")!=-1)
inputElem[i].checked = cb.checked;
}
}    
</script>
</apex:page> 

Controller Code is:

public class Checkbox_Class 
{ 
    List<accountwrapper> accountList = new List<accountwrapper>();
    List<Account> selectedAccounts = new List<Account>();
        
    public List<accountwrapper> getAccounts()
    {
        for(Account a : [select Id, Name, AccountNumber, Phone from Account limit 5])
        accountList.add(new accountwrapper(a));
        return accountList;
    }
    
    public PageReference getSelected()
    {
        selectedAccounts.clear();
        for(accountwrapper accwrapper : accountList)
        if(accwrapper.selected == true)
        selectedAccounts.add(accwrapper.acc);
        return null;
    }
    
    public List<Account> GetSelectedAccounts()
    {
        if(selectedAccounts.size()>0)
        return selectedAccounts;
        else
        return null;
    }    
    
    public class accountwrapper
    {
        public Account acc{get; set;}
        public Boolean selected {get; set;}
        public accountwrapper(Account a)
        {
            acc = a;
            selected = false;
        }
    }
} 

 Cheers!!!

3 comments:

  1. Hi Rajesh

    This was really nice one, It really help me a lot

    Thanks a lot

    ReplyDelete
  2. I need to hightlight the entire row oncheck of the check box.

    Pls help.

    ReplyDelete
  3. Hi Rajesh,
    Your this blog is so helpful to me. but if there problem arise on the basis of group records that's mean we want to check all on the basis of group then how can that handle.

    ReplyDelete