User Guide

LoadVars 405

Example

For the following example, add a TextInput instance called name_ti, a TextArea instance

called

result_ta, and a Button instance called submit_button to the Stage. When the user

clicks the Login button instance in the following example, two LoadVars objects are created:

send_lv and result_lv. The send_lv object copies the name from the name_ti instance

and sends the data to greeting.cfm. The result from this script loads into the

result_lv

object, and the server response displays in the TextArea instance (

result_ta). Add the

following ActionScript to Frame 1 of the Timeline:

var submitListener:Object = new Object();

submitListener.click = function(evt:Object) {

var result_lv:LoadVars = new LoadVars();

result_lv.onLoad = function(success:Boolean) {

if (success) {

result_ta.text = result_lv.welcomeMessage;

} else {

result_ta.text = "Error connecting to server.";

}

};

var send_lv:LoadVars = new LoadVars();

send_lv.name = name_ti.text;

send_lv.sendAndLoad("http://www.flash-mx.com/mm/greeting.cfm",

result_lv, "POST");

};

submit_button.addEventListener("click", submitListener);

To view a more robust example, see the login.fla file in the ActionScript samples folder.

Typical paths to the ActionScript samples folder are:

■ Windows: boot drive\Program Files\Macromedia\Flash 8\Samples and

Tutorials\Samples\ActionScript

■ Macintosh: Macintosh HD/Applications/Macromedia Flash 8/Samples and Tutorials/

Samples/ActionScript