Hi bryano,

Well, it appears that you found a bug in the sendEMail function in the flex toolkit.  The address fields (to, bcc, cc) should all be string arrays.  The SingleEmailMessage defined those fields as strings.  I have fixed and tested this issue. 

To temporarily work around the issue until we publish a new cut of the toolkit, you can create a new SingleEmailMessage class that has the correct address type definitions.  I've created one below that you can use in your project.

Code:

package
{
 import com.salesforce.XmlWriter;
 import com.salesforce.objects.BaseEmail;
 import flash.utils.*;
 
 import mx.utils.ObjectProxy;

 public class MySingleEmailMessage extends BaseEmail
 {
  public var bccAddresses:Array; 
  public var toAddresses:Array;
  public var ccAddresses:Array;
  public var htmlBody:String;
  public var charset:String;
  public var plainTextBody:String;
  public var targetObjectId:String;
  
     public static const HIGHETS:String = "Highest";
     public static const HIGH:String = "High";
     public static const NORMAL:String = "Normal";
     public static const LOW:String = "Low";
     public static const LOWEST:String = "Lowest";


  public function MySingleEmailMessage(obj:ObjectProxy = null) { 
   super(obj);
   for (var key:String in obj) {
    this[key] = obj[key];
   } 
  } 

  public function toXml(sobjectNs:String, name:String, writer:XmlWriter):void
    {
      writer.writeStartElement(name, sobjectNs);
      writer.writeXsiType('SingleEmailMessage');  // need to apply our own xsi type

      var classInfo:XML = describeType(this); // used to walk thru the variable names of this class
      
      for each (var v:XML in classInfo..variable) {
           var propName:String = v.@name;
             var propVal:Object = this[propName];
             
             if (!propVal) continue;   // skip empty properties
          if (propVal is Array) {
              for (var propArrayVal:String in propVal) {
                  writer.writeNameValueNode( propName, propVal[propArrayVal]);
              }
          } else {
           writer.writeNameValueNode( propName , propVal);
          }
          
      }
      
      writer.writeEndElement(name, sobjectNs);
    } 

 }
}

Below is a sample of using this class instead of the SingelEmailMessage class:

Code:

 private function makeEmailMessage(subject:String, toAddress:Array, body:String, priority:String):BaseEmail {
  var single:MySingleEmailMessage = new MySingleEmailMessage();
  single.subject = subject;
  single.toAddresses = toAddress;
  single.plainTextBody = body;
  single.emailPriority = MySingleEmailMessage.LOW;
  return single;
 }
  
 private function sendEmail() : void {
  var emails:ArrayCollection = new ArrayCollection(
    [makeEmailMessage("Test Three", ["dcarroll@merce.com", "dcarroll@salesforce.com"], "This is the body", SingleEmailMessage.LOW)]
   );      

    apex.sendEmail( emails.toArray() , new AsyncResponder(
   function (result:SendEmailResult):void  {
      ta.text = 'email Result\n' + ObjectUtil.toString(result) ;
     },  genericFault));
   }

 


We will post in the Ajax Toolkit & SControls board when the fix is publicly available.


Cheers.