Re: [flexcoders] determine if image source exists

[Scott Melby]

You can use a Loader and attempt a load as follows:

     /**
     * The Loader used to load images.
     */
     private var _imageLoader:Loader = new Loader();
    
...

     var urlRequest:URLRequest = new URLRequest(someURLString);
                
     try
     {
           _imageLoader.load(urlRequest);
     }
     catch (imageLoadError:Error)
     {
           trace("Unable to load image at '" + someURLString + "': " + 
imageLoadError.message);
      }

You will need to listen to the loader for events.  If it loads, your 
source is ok, if not you will likely get the ioError event... unless you 
have a security issue in which case you will catch the SecurityError 
that gets thrown.

hth
Scott




bhaq1972 wrote:

How can I check if a the jpg source defined by a string really exists.
eg

var image1:Image = new Image();
var sHello:String = "images/hello.jpg";

if(sHello exists) // this is the bit i need help on
{
image1.source = sHello;
}

tia
bod