How to use rowClasses in a dataTable or PageBlockTable in VisualForce

Scenario:
 To have a table that would shade each alternative row.

Solution:
In your css file or even in the visualforce page place in the following:

1. In CSS:
1. .odd {
   background-color: #FCF7F7;
   }
   .even {
   background-color: #E3DCDB;
   }
2. Inside the VF Page:

So the Apex Visualforce page would look like this:
                <apex:page standardcontroller="Contact">
                <apex:form id="reportform"> <!-- Start of ReportForm-->
                <apex:dataTable value="{!queryResult}" var="r" id="       ttable" border="0" rowClasses="even,odd">
                 <!--yourcode here-->
                 </apex:dataTable>
                 </apex:form>
                 </apex:page>

Now you have each other row shaded gray/white.
Thanks
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How to use apex variable for total records in Visualforce

Scenario:
  I came across a issue where visualforce does not allow one to Count or Sum records in a page.
One solution would be to add more code to the controller to do a count of the records. Which is ok.
A simple solution is to use the apex variable function in Visualforce.

Solution:

1. Lets do it off Contacts
2. In your Apex Controller : Create a SOQL query as is:

public class countcontroller{

            public List<Contact> queryResult {get;private set;}

            public String qryString {get;set;}

            public PageReference query(){

            qryString =  'SELECT Name, Email, Phone from Contact';

            queryResult = Database.query(qryString);
             return null;

       }

} 

Pretty Simple and Straight Forward.

Now for the VF Page and Magic:

You will see I use the apex variable function to do a couple of things:

• 
  

  create a variable

  run the query inside that variable counting all the records by 1 within a repeat tag

  calling the variable with the total 

  Kind of like a for Loop but in Visualforce instead of controller. 

<apex:page standardcontroller="Contact" extensions="countcontroller">

<table width="95%" border="0" align="center" cellpadding="0" cellspacing="0">
<tr height="5">
    <td width="35%" class="outsideround_head" align="right">
        Total Contacts Returned:&nbsp;
    </td>
    <td width="8%" class="outside_round_head_value">
        <apex:variable var="call" value="{!0}" />
        <apex:repeat var="countitall" value="{!queryResult}" >
        <apex:variable var="call" value="{!call+1}"/>
        </apex:repeat>
        <apex:outputText value="{!call}"/>
    </td>

</tr>

</table>

</apex:page>

Wallah you have count.

Thanks please give me feedback!!! 

Thanks
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