Flash 8 Documentation

ActionScript 2.0 Language Reference > ActionScript classes > XML > sendAndLoad (XML.sendAndLoad method)

sendAndLoad (XML.sendAndLoad method)

Encodes the specified XML object into an XML document, sends it to the specified URL using the POST method, downloads the server's response, and loads it into the resultXMLobject specified in the parameters. The server response loads in the same manner used by the XML.load() method.

When the sendAndLoad() method is executed, the XML object property loaded is set to false. When the XML data finishes downloading, the loaded property is set to true if the data successfully loaded, and the onLoad event handler is invoked. The XML data is not parsed until it is completely downloaded. If the XML object previously contained any XML trees, those trees are discarded.

When using this method, consider the Flash Player security model:

For Flash Player 8:

• Data loading is not allowed if the calling SWF file is in the local-with-file-system sandbox and the target resource is from a network sandbox.
• Data loading is also not allowed if the calling SWF file is from a network sandbox and the target resource is local.

For more information, see the following:

• "Understanding Security" in Learning ActionScript 2.0 in Flash
• The Flash Player 8 Security white paper at http://www.macromedia.com/go/fp8_security
• The Flash Player 8 Security-Related API white paper at http://www.macromedia.com/go/fp8_security_apis

For Flash Player 7 and later websites can permit cross-domain access to a resource via a cross-domain policy file. In SWF files of any version running in Flash Player 7 and later, the url parameter must be in exactly the same domain. For example, a SWF file at www.someDomain.com can load data only from sources that are also at www.someDomain.com.

In SWF files running in a version of the player earlier than Flash Player 7, the url parameter must be in the same superdomain as the SWF file that is issuing this call. A superdomain is derived by removing the left-most component of a file's URL. For example, a SWF file at www.someDomain.com can load data from sources at store.someDomain.com, because both files are in the same superdomain of someDomain.com.

Availability: ActionScript 1.0; Flash Player 5 - Behavior changed in Flash Player 7.

Parameters

url:String - A string; the destination URL for the specified XML object. If the SWF file issuing this call is running in a web browser, url must be in the same domain as the SWF file; for details, see the Description section.

resultXML:XML - A target XML object created with the XML constructor method that will receive the return information from the server.

Example

The following example includes ActionScript for a simple e-commerce storefront application. The XML.sendAndLoad() method transmits an XML element that contains the user's name and password, and uses an onLoad handler to process the reply from the server.

var login_str:String = "<login username=\""+username_txt.text+"\" password=\""+password_txt.text+"\" />";
var my_xml:XML = new XML(login_str);
var myLoginReply_xml:XML = new XML();
myLoginReply_xml.ignoreWhite = true;
myLoginReply_xml.onLoad = myOnLoad;
my_xml.sendAndLoad("http://www.flash-mx.com/mm/login_xml.cfm", myLoginReply_xml);
function myOnLoad(success:Boolean) {
    if (success) {
        if ((myLoginReply_xml.firstChild.nodeName == "packet") &&
            (myLoginReply_xml.firstChild.attributes.success == "true")) {
            gotoAndStop("loggedIn");
        } else {
            gotoAndStop("loginFailed");
        }
    } else {
        gotoAndStop("connectionFailed");
    }
}

See also

send (XML.send method), load (XML.load method), loaded (XML.loaded property), onLoad (XML.onLoad handler)

Version 8

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