Empty Grid in jqgrid

I am trying to integrate a grid to my PHP project, JQgrid looked so easy!! When i Integrated I was only able to see the grid, not the data in the grid! I have just change the db settings of the sample code to work with my DB.

Debug results:

1. When I debugged with firebug I am able to see the db rows in the consolde mode of firebug.

2. Here with also pasting the logs of jqGrid.log

3. It also throws a warning msg "Warning: date() [function.date]: It is not safe to rely on the system's timezone settings. You are required to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'America/New_York' for '-5.0/no DST' instead in C:\Users\Karthik\Desktop\apache\htdocs\开发者_C百科php\jqGrid.php(1) : eval()'d code on line 1"

Both files resides in root directory. Some clues to troubleshoot

PHP Code"myfristgrid.php"

require_once 'jq-config.php';

// include the jqGrid Class

require_once "php/jqGrid.php";

require_once "php/jqGridPdo.php";

$conn = new PDO(DB_DSN,DB_USER,DB_PASSWORD);

$conn->query("SET NAMES utf8");

$grid = new jqGridRender($conn);

$grid->debug = true;

$grid->SelectCommand = 'SELECT * FROM question';

$grid->datatype = 'json';

$grid->setColModel();

$grid->setUrl('myfirstgrid.php');

$grid->setGridOptions(array( "caption"=>"This is custom Caption", "rowNum"=>10, "sortname"=>"id", "hoverrows"=>true, "rowList"=>array(10,20,50), ));

$grid->setColProperty("id", array("label"=>"ID", "width"=>60));

// Enjoy

$grid->renderGrid('#grid','#pager',true, null, null, true,true);

$conn = null;

jqGrid.log

Executed 2 query(s) - 2011-01-26 22:50:28 Array ( [0] => Array ( [time] => 2011-01-26 22:50:28 [query] => SELECT COUNT(*) AS COUNT FROM question [data] => [types] => [fields] => [primary] => [input] => )

[1] => Array
    (
        [time] => 2011-01-26 22:50:28
        [query] => SELECT * FROM question ORDER BY id asc LIMIT 0, 10
        [data] => 
        [types] => 
        [fields] => 
        [primary] => 
        [input] => 
    )

)

You can't properly use setColProperty in the jqGrid.