Getting Specific rows in Datatable using JavaScript in Salesforce

I am working with visualforce pages. I am using datatable in page and i have used a checkbox in each row in datatable, now i want to get only those rows whose checkbox values is true, the code is given below.

<apex:page controller="searchDuplicate">
<apex:pageBlock title="Searching for Duplicate Contacts Record">
 <center>
     <apex:form>
         <apex:dataTable id="dTable" value="{!selectedContactList}" var="cn" border="1" cellpadding="5">
            <apex:column headerValue="Name" value="{!cn.Name}" />
            <apex:column headerValue="Email" value="{!cn.Email}" />
            <apex:column headerValue="Select">
                <apex:inputCheckbox/>
            </apex:column>
         </apex:dataTable>
         <apex:commandButton value= "Delete Selected"/>
    </apex:form>
 </center>
</apex:pageBlock> 
</apex:page>

kindly help

May 8, 2013
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Best Answer chosen by Admin (Salesforce Developers)

hitesh90
Hi,

You have to take one string variable "strSelectedIds" in your controller and using javascript you can get the value of selected contactid to this variable in your controller.

Public sting strSelectedIds {get; set;}

<apex:page controller="searchDuplicate"> <script> function checkOne(cb){ var selectedIds=document.getElementById("{!$Component.pbSearchCon.frm.hdnSelectedIds}").value; if(selectedIds.indexOf(cb.title)!=-1){ selectedIds=selectedIds.replace(cb.title+",",""); }else{ selectedIds=selectedIds+cb.title+","; } document.getElementById("{!$Component.pbSearchCon.frm.hdnSelectedIds}").value=selectedIds; } </script> <apex:pageBlock id="pbSearchCon" title="Searching for Duplicate Contacts Record"> <center> <apex:form id="frm"> <apex:inputhidden id="hdnSelectedIds" value="{!strSelectedIds}"/> <apex:dataTable id="dTable" value="{!selectedContactList}" var="cn" border="1" cellpadding="5"> <apex:column headerValue="Name" value="{!cn.Name}" /> <apex:column headerValue="Email" value="{!cn.Email}" /> <apex:column headerValue="Select"> <apex:inputCheckbox title="{!cn.id}" onClick="checkOne(this);"/> </apex:column> </apex:dataTable> <apex:commandButton value= "Delete Selected"/> </apex:form> </center> </apex:pageBlock> </apex:page>

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Thank You,
Hitesh Patel
SFDC Certified Developer & Administrator