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# YUI Library Examples: DataTable Control: Client-side Sorting

# DataTable Control: Client-side Sorting

A custom sort handler has been defined in this example to enable custom nested sorting, such that clicking on the "States" Column will sort by states, and then by area code.

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## Sample Code for this Example

Data:

YAHOO.example.Data = { areacodes: [ {areacode: "201", state: "New Jersey"}, {areacode: "202", state: "Washington, DC"}, {areacode: "203", state: "Connecticut"}, ... ] }

CSS:

/* No custom CSS. */

Markup:

<div id="sort"></div>

JavaScript:

YAHOO.util.Event.addListener(window, "load", function() { YAHOO.example.CustomSort = function() { // Custom sort handler to sort by state and then by areacode // where a and b are Record instances to compare var sortStates = function(a, b, desc) { // Deal with empty values if(!YAHOO.lang.isValue(a)) { return (!YAHOO.lang.isValue(b)) ? 0 : 1; } else if(!YAHOO.lang.isValue(b)) { return -1; } // First compare by state var comp = YAHOO.util.Sort.compare; var compState = comp(a.getData("state"), b.getData("state"), desc); // If states are equal, then compare by areacode return (compState !== 0) ? compState : comp(a.getData("areacode"), b.getData("areacode"), desc); }; var myColumnDefs = [ {key:"areacode",label:"Area Codes",sortable:true}, {key:"state",label:"States",sortable:true,sortOptions:{sortFunction:sortStates}} ]; var myDataSource = new YAHOO.util.DataSource(YAHOO.example.Data.areacodes.slice(0,25)); myDataSource.responseType = YAHOO.util.DataSource.TYPE_JSARRAY; myDataSource.responseSchema = { fields: ["areacode","state"] }; var myDataTable = new YAHOO.widget.DataTable("sort", myColumnDefs, myDataSource, {sortedBy:{key:"areacode", dir:"asc"}}); return { oDS: myDataSource, oDT: myDataTable }; }(); });

## Configuration for This Example

You can load the necessary JavaScript and CSS for this example from Yahoo's servers. Click here to load the YUI Dependency Configurator with all of this example's dependencies preconfigured.

### YUI Logger Output:

Note: Logging and debugging is currently turned off for this example.

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### DataTable Control Examples:

### More DataTable Control Resources:

- User's Guide (external)
- API Documentation
- Cheat Sheet PDF (external)

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