<style scoped>

/* custom styles for this example */

.dt-example {margin:1em;}

/* css to counter global site css */

.dt-example th {text-transform:none;}

.dt-example table {width:auto;}

.dt-example caption {display:table-caption;}

</style>

<div class="intro">

<p>Custom format row data for display with string templates or custom functions.</p>

</div>

<div class="example yui3-skin-sam">

{{>datatable-formatting-source}}

</div>

<h2>Formatting Row Data for Display</h2>

<p>Data can be stored in one format but be displayed in a different format. For instance, prices can be stored as numbers but be displayed as "$2.99", and birthdays can be stored as date objects but be displayed as "12/9/2009".

<p>Simple formatting can be defined with a string template on the column definition.</p>

```

YUI().use("datatable-base", function(Y) {

var cols = ["id","name", {key:"price", formatter:"\${value}"}],

data = [

{id:"ga-3475", name:"gadget", price:6.99},

{id:"sp-9980", name:"sprocket", price:3.75},

{id:"wi-0650", name:"widget", price:4.25}

],

table = new Y.DataTable.Base({

columnset: cols,

recordset: data,

caption: "Data formatting with string template"

}).render("#template");

```

<p>When a calculation is needed, define a custom function that generates markup for the data cell. The custom formatter function receives an object with the following properties: `{tbody, tr, classnames, headers, rowindex, record, column, data, value}`.</p>

```

// The custom formatter function recieves an object with the properties:

// {tbody, tr, td, classnames, headers, rowindex, record, column, data, value}

var calculate = function (o){

var record = o.record;

return "$"+(record.getValue("price") - record.getValue("cost"));

},

cols = [

"id",

"name",

{ key: "profit", formatter: calculate }

],

data = [

{id:"ga-3475", name:"gadget", price:6.99, cost:4.99},

{id:"sp-9980", name:"sprocket", price:3.75, cost:2.75},

{id:"wi-0650", name:"widget", price:4.25, cost:3.25}

],

dt = new Y.DataTable.Base({

columnset: cols,

recordset: data,

caption: "Data formatting with custom function"

}).render("#function");

```

<p>The DataType utility can be used to help format date objects. This example

also uses the `emptyCellValue` column configuration to supply a custom cell

value in the case of missing data.</p>

```

YUI().use("datatype-date", "datatable-base", function (Y) {

// The custom formatter function recieves an object with the properties:

// {tbody, tr, classnames, headers, rowindex, record, column, data, value}

var formatDates = function (o){

return o.value &&

Y.DataType.Date.format(o.value, { format: "%m/%d/%Y" });

},

cols = [

"id",

"name",

{ key: "date", formatter: formatDates, emptyCellValue: "(unknown)" }

],

data = [

{id:"ga-3475", name:"gadget", date:new Date(2006, 5, 1)},

{id:"sp-9980", name:"sprocket", date:new Date(2004, 8, 16)},

{id:"wi-0650", name:"widget"} // no date for this record

],

dt = new Y.DataTable.Base({

columnset: cols,

recordset: data,

caption: "Data formatting with DataType.Date"

}).render("#dates");

```