How to count the amount of registries of a grid?

Question

Hi, I have a grid generated through a HTTPService, Example:
<mx:HTTPService id="userRequest" url="
http://localhost/flex/php/prueba2.php"
useProxy="false" method="POST">
<mx:request xmlns="">
<userid>{userid.text}</userid>
<username>{username.text}</username>
<emailaddress>{emailaddress.text}</emailaddress>
<id_operacion>{txtOperacion.text}</id_operacion>
</mx:request>
</mx:HTTPService>
<mx:DataGrid id="dgUserRequest" x="22" y="10"
dataProvider="{userRequest.lastResult.users.user}">
<mx:columns>
<mx:DataGridColumn headerText="User ID"
dataField="userid"/>
<mx:DataGridColumn headerText="User Name"
dataField="username"/>
<mx:DataGridColumn headerText="Email Address"
dataField="emailaddress"/>
</mx:columns>
</mx:DataGrid>
how I can obtain the amount of registries that has my grid?
jfuentes

Answer 1

Also, be aware the the default for HTTPService is
resultFormat="object". this causes your XML to be converted into a
nested object structure.
I advise you keep your data as XML. It is much easier to work
with (search, etc) than the nexted objects. specify
resultFormat="e4x".
Tracy