How to do Ajax in php pages

[maideen]

Hi 

I am not familiar with ajax. pls help me how i can do in script

Below my script  and using pdo and mssql 2005. Below script working fine. But everytime change the details, page refresh and display is delayed

 

Pls help me

 

---------------------------------------------------------------------------

index.php

----------------------------------------------------------------------------------------------

 

 

<?php

include_once '../inc/connection.inc.php';

?>

 

<?php

try {

       $stmt = $dbh->prepare('SELECT * FROM MVendorMaster order by MVName');

       $stmt->execute();

    } 

catch (PDOException $e) 

    {

       $output = 'Error fetching main vendor from database!';

       include '../errormsg.php';

       exit();

    }

 

foreach ($stmt as $row) 

    {

       $mvcode[] = array('MVCode' => $row['MVCode'], 'MVName' => $row['MVName']);

    }

include 'searchform.html.php';

?>

 

<?php

if (isset($_POST['mvendor']) && $_POST['mvendor']  != "" )

    {

        $mvcode = $_POST["mvendor"];

        $datefrom=$_POST["datefrom"];

        $dateto=$_POST["dateto"];

        

        $stmt = $dbh->query("SELECT * FROM InvoiceHead WHERE MVCode='$mvcode' and SODate>='$datefrom' and SODate<='$dateto' order by SODate");  

        $stmt->setFetchMode(PDO::FETCH_ASSOC);  

     }

    include 'view.html.php';

    exit();

   

?>

 

---------------------------------------------------------

searchform.html.php

-------------------------------------------

 

 

<?php

include '../templete/header.php';

?>

 

<form action="" method="post">

        <table>

              <tr>

                  <td>Main Vendor Name </td>

                  <td>

                      <select name="mvendor" id="mvcode"><option value="">Mian Vendor</option>

                    <?php foreach ($mvcode as $mvcodes): ?>

                        <option value="<?php htmlout($mvcodes['MVCode']); ?>">

                            <?php htmlout($mvcodes['MVName']); ?></option>

                    <?php endforeach; ?>

                    </select>

                        

                  </td>

                  

              </tr>

              <tr>

                <td>Date[From]:</td>

                <td><input type="text" id="datepicker1" name="datefrom" /></td>

              </tr>

              <tr>

                <td>Date[To]:</td>

                <td><input type="text" id="datepicker2" name="dateto" /></td>

              </tr>    

 

 

        </table>

  

        <div>

            

            <input type="submit" value="Search">

        </div>

</form>

 

------------------------------------------------------------------------

view.html.php

 

-----------------------------------------------------------------------

 

 

<?php //include '../templete/header.php'; ?>

<script language="javascript" type="text/javascript">

     //window.print();

</script>

 

<script type="text/javascript">

 

        function PrintGridData() {

            var prtGrid = document.getElementById('<%=txtDocNo%>');

            prtGrid.border = 0;

            var prtwin = window.open('', 'PrintGridViewData', 'left=100,top=100,width=1000,height=1000,tollbar=0,scrollbars=1,status=0,resizable=1');

            prtwin.document.write(prtGrid.outerHTML);

            prtwin.document.close();

            prtwin.focus();

            prtwin.print();

            prtwin.close();

 </script>

 

<table width="100%" align="center" cellpadding="4" cellspacing="1" class=tbl_table">

  <tr>

    <td class="tbl_header">MV CODE</td>

    <td class="tbl_header">MV NAME</td>

    <td class="tbl_header">SONO</td>

    <td class="tbl_header">SO Date</td>

    <td class="tbl_header">RATE</td>

    <td class="tbl_header">SUPP.QTY</td>

    <td class="tbl_header">RTN.QTY</td>

    <td class="tbl_header">BAL.Qty</td>

    <td class="tbl_header">SOLD AMT</td>

    

    

    

    <td class="tbl_header">Actions</td>

    

 

  </tr>

        <?php 

   

        

 

        if(isset($stmt))

            { 

                while($row = $stmt->fetch())

            {?>

    <tr>

      <td class="tbl_content"><?php echo $row['MVCode'];?></td>

      <td class="tbl_content"><?php echo $row['MVName'];?></td>

      <td class="tbl_content"><?php echo $row['SONo'];?></td>

      <td class="tbl_content"><?php echo date("d-m-Y", strtotime($row['SODate']));?></td>

      <td class="tbl_content_right"><?php echo number_format($row['Rate'],2) ;?></td>

      <td class="tbl_content_right"><?php echo number_format($row['Qty']) ;?></td>

      <td class="tbl_content_right"><?php echo number_format($row['RTNQty']) ;?></td>

      <td class="tbl_content_right"><?php echo number_format($row['BalQty']) ;?></td>

      <td class="tbl_content_right"><?php echo number_format($row['BalAmt'],2) ;?></td>

      <!--number_format

      <td>

          <a href="view?=<?php echo $row['SVCode'];?>">View</a> |

          <a href="edit?=<?php echo $row['SVCode'];?>">Edit</a> |

          <a href="delete?=<?php echo $row['SVCode'];?>">Delete</a>

      </td>

    -->

    </tr>

    <?php }}?> 

</table>

 

<?php unset($dbh); unset($stmt); ?>

 

<?php

include '../templete/footer.php';

?>

 

---------------------------------------------

Data connection

---------------------------------------------

 

<?php

  try {

        $hostname = "server";            //host

        $dbname = "db1";            //db name

        $username = "sa";            // username like 'sa'

        $pw = "7hjer34s$%";                // password for the user

        $dbh = new PDO ("mssql:host=$hostname;dbname=$dbname","$username","$pw");

    } 

 

  catch (PDOException $e) 

    {

        echo "cannot connect " . $e->getMessage() . "\n";

        file_put_contents('PDOErrors.txt', $e->getMessage(), FILE_APPEND);

        exit;

    }

?>

 

Pls help how can i add ajax in this page

 

thanking you

 

maideen