What 's the different of HttpProxy and ScriptTagProxy

[redalerthan]

Partial code in grid.js:

var ds = new Ext.data.Store({
// HttpProxy should be used here
proxy: new Ext.data.ScriptTagProxy({url: 'grid-paging-data.php'}),
reader: new Ext.data.JsonReader({root: 'results',totalProperty: 'total'}, [
{name: 'OrderID', mapping: 'OrderID'},
{name: 'ProductID', mapping: 'ProductID'},
{name: 'UnitPrice', mapping: 'UnitPrice'},
{name: 'Quantity', mapping: 'Quantity'},
{name: 'Discount', mapping: 'Discount'}
]),
// turn on remote sorting
remoteSort: true
});
ds.setDefaultSort('OrderID', 'desc');

This is work for the grid, while when I change the proxy to HttpProxy, the grid get no data.
entironment:winxpsp2+iis5+php5+mysql5+ie7, php file and .js file located in the root of wwwroot.
What 's the problem ?

[perrich]

Maybe your JSON result is bad :
Change IE7 and use Firefox + firebug => You can debug, show received JSON result and be notified after each error.

I've a similar script and if ScriptTagProxy is supported, HTTPProxy works also (and must be used, if you doesn't need a cross domain request).

[Animal]

Maybe your JSON result is bad :
Change IE7 and use Firefox + firebug => You can debug, show received JSON result and be notified after each error.

I've a similar script and if ScriptTagProxy is supported, HTTPProxy works also (and must be used, if you doesn't need a cross domain request).

A server script can be made to work for both, but you need to code for it.

The server is contacted by ScriptTagProxy by creating... guess what? a <script> tag with the src set to the URL you specify.

So what you return must be executable javascript code, not just an object.

This is made clear if you read the documentation: http://extjs.com/deploy/ext-1.1-beta1/docs/output/Ext.data.ScriptTagProxy.html

[redalerthan]

Hi All, I am newbie for both ext and php, I use the tutorial for paging grid located in http://www.vinylfox.com/extjs/examples/grid-paging.zip, I just change the mysql server to local and change ScriptTagProxy to HttpProxy, it not work, is there any change I have to do for the grid-paging-data.php ?

[perrich]

Could you compare http://extjs.com/forum/topics-remote.php?start=0&limit=25&_dc=1181633461171&callback=stcCallback1001 and your grid-paging-data.php result ?