PHPGRID.ORG

        $g = new jqgrid();

        // file upload column
        $col = array();
        $col["title"] = "Image";
        $col["name"] = "news_image";
        $col["editable"] = true;
        $col["edittype"] = "file"; // render as file
        $col["upload_dir"] = "uploads/news_images"; // upload here
        $col["show"] = array("list"=>false,"edit"=>true,"add"=>true); // only show in add/edit dialog
        $cols[] = $col;


        $col = array();
        $col["title"] = "Image Preview";
        $col["name"] = "image";
        $col["formatter"] = "image";
        $col["formatoptions"] = array("class"=>'img_preview');
        $col["search"] = false;
        $col["show"] = array("list"=>true,"edit"=>true,"add"=>false); // Tried this trick to show Preview in Edit Popup
        $cols[] = $col;