Here is the code
<mx:Script>
<![CDATA[
private function send_data():void {
userRequest.send();
}
]]>
</mx:Script>
<mx:Form x="22" y="10" width="493">
<mx:HBox>
<mx:Label text="UserId"/>
<mx:TextInput id="userid"/>
</mx:HBox>
<mx:HBox>
<mx:Label text="Ip Address"/>
<mx:TextInput id="ip"/>
</mx:HBox>
<mx:Button label="Submit" click="send_data()"/>
</mx:Form>
<mx:DataGrid id="dgUserRequest" x="22" y="128"
dataProvider="{userRequest.lastResult.users.user}">
<mx:columns>
<mx:DataGridColumn headerText="User ID" dataField="userid"/>
<mx:DataGridColumn headerText="User Name" dataField="ip"/>
</mx:columns>
</mx:DataGrid>
<mx:TextInput x="22" y="292" id="selectedemailaddress"
text="{dgUserRequest.selectedItem.emailaddress}"/>
<mx:HTTPService id="userRequest" url="http://localhost/post.php";
useProxy="false" method="POST" resultFormat="e4x">
<mx:request xmlns="">
<userid>{userid.text}</userid>
<ipaddress>{ip.text}</ipaddress>
</mx:request>
</mx:HTTPService>
