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Frequently Asked Questions

Last Updated: Dec 30, 2012 09:03PM PKT
Q)  How to debug no records (blank grid)?
 
Few considerations before use 
 
1)  include the jqgrid_dist.php file before any thing rendered to output.
2)  Check the ajax response of grid,
 
Use firefox->firebug->net->ajax-call of grid->response
 
You will see the output there, in case of any error. It should be proper JSON format data in order to render grid
 
Q)  How can I set the width in this grid, i do not want to set screen size width but custom width size
 
You need to set following params:
 
$grid["autofilter"] = false;
$grid["width"] = "600"; // defaults to 900
...
$g->set_options($grid);
 
If you dont specify the width property, it will be the sum of all columns width.
 
Q) How can i integrate PHPGrid in MVC based frameworks like Codeignoitor, Zend, CakePHP and others.
 
To integrate in MVC, You can divide code in 2 sections. And put first in controller and pass the $out variable to view, where you can render it with rest of JS/CSS files.
 
# CONTROLLER PART
 
include("inc/jqgrid_dist.php");
$g = new jqgrid();
.....
$out = $g->render("list1");
 
# VIEW PART
 
<link rel="stylesheet" type="text/css" media="screen" href="js/themes/redmond/jquery-ui.custom.css"></link> 
<link rel="stylesheet" type="text/css" media="screen" href="js/jqgrid/css/ui.jqgrid.css"></link> 
 
<script src="js/jquery.min.js" type="text/javascript"></script>
<script src="js/jqgrid/js/i18n/grid.locale-en.js" type="text/javascript"></script>
<script src="js/jqgrid/js/jquery.jqGrid.min.js" type="text/javascript"></script> 
<script src="js/themes/jquery-ui.custom.min.js" type="text/javascript"></script>
 
<div style="margin:10px">
<?php echo $out?>
</div>
 
Q)  Change height of cell
 
 Inspect the cell using firebug, and check its class
 
.ui-jqgrid tr.jqgrow td { ... }
 
You can apply padding-top, padding-bottom in it to see effect.
 
Q) What documentation is available with package?
 
The documentation is one on web, then we have many working examples of almost all features  with inline commented docs. 
 
If still there is an issue in understanding, live email and chat support and remote session support is also there.
 
We also have a support center that provide resolution of many frequent concerns.
 
You will also have 1 month of refund claim policy, which is actually very rare in our customers.
 
Please consider one more fact, this is generic grid and provide customizations of user interface to an extent. So if you are willing to do some major playground in features ... ask before buying.
 
Q) How can i get IDs of the selected rows of grid?
 
on client side, you can have ids in this way.
 
var selr = jQuery('#grid').jqGrid('
getGridParam','selrow'); // returns null if no row is selected  (single row)
 
// array of id's of the selected rows when multiselect options is true. Empty array if not selection 
var selr = jQuery('#grid').jqGrid('getGridParam','selarrrow'); 
 
Q) How can i set the width of 'Actions' column?
 
You can also customize the width of that column,
 
# Customization of Action column width and other properties
$col = array();
$col["title"] = "Action";
$col["name"] = "act";
$col["width"] = "50";
$cols[] = $col;
 
This work when you define grid columns manually and pass to this function.
Otherwise, it will distribute all columns with equal width.
 
// pass the cooked columns to grid
$g->set_columns($cols);
 
Q) How can i use custom data formatter with column?
 
You can use it in following manner, e.g.
 
in php code ...
 
$col = array();
$col["title"] = "Closed";
$col["name"] = "closed";
$col["width"] = "50";
$col["editable"] = true;
$col["edittype"] = "checkbox"; // render as checkbox
$col["editoptions"] = array("value"=>"1:0"); // with these values "checked_value:unchecked_value"
$col["formatter"] = "function(cellvalue, options, rowObject){ return cboxFormatter(cellvalue, options, rowObject);}";
 
and in html ...
 
<script>
function cboxFormatter(cellvalue, options, rowObject)
{
return '<input type="checkbox" name="itemid[]" value="'+options.rowId+'" onclick="test('+options.rowId+',this.checked);"/> '+cellvalue;
}
</script>
<div style="margin:10px">
<?php echo $out?>
</div>
 
Q) How to load grid based on $_POST data from other page?
 
The grid is loaded with 2 server calls.
 
1) load the columns of grid.
2) do an ajax call, to load data of grid.
 
Now, if you want to pass data from external form, it is available for step1. But not there in 2nd ajax call, as it is not posted.
Solution is to put the POST variable in session and use it from session for step2.
 
e.g.
 
if (!empty($_POST["personid"]))
$_SESSION["personid"] = $_POST["personid"];
 
and use $_SESSION["personid"] in your SQL.
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