SilverLight 2 (RCO): Sys.InvalidOperationException (when image does not exist)

10-09-2008 8:57 AM |

 I have an image that is defined in the XAML:

 <Image x:Name="ProductZero" Grid.Row="3" Grid.Column="3" Grid.RowSpan="12" Grid.ColumnSpan="12"  Opacity="1" />

In my C# code, I set the source (from a value got from the database).

Uri uri = new Uri(_products.ElementAt((int)productZeroIndex).PictureUrl, UriKind.Absolute);
ImageSource img = new BitmapImage(uri);
this.ProductZero.SetValue(Image.SourceProperty, img);

If the product image can not be found (i.e. http://www.myCompany.com/images/products/myGraphic.jpg ) then this causes a JavaScript error:

From FireFox (IE doesn't give that much data)

Error: Sys.InvalidOperationException: ImageError error #4001 in control 'Xaml1': AG_E_NETWORK_ERROR

This is fired from :

function Sys$UI$Silverlight$Control$_pluginError(slSender, e)

Maybe this is acceptable behaviour ?

Griff 

Re: SilverLight 2 (RCO): Sys.InvalidOperationException (when image does not exist)

10-09-2008 10:22 AM |

Hi,

 I just tried your code and made a slight modification to run at my end and found it is working.

Uri uri = new Uri("http://localhost:1628/a03.jpg", UriKind.Absolute);
ImageSource img = new BitmapImage(uri);
myImage.SetValue(Image.SourceProperty,img);

This error" #4001 in control 'Xaml1': AG_E_NETWORK_ERROR" normally comes when it will niot find image at that Particular Path.

Make sure are you able to type your image String to Browser which you are setting in URI and able to see image...

Re: SilverLight 2 (RCO): Sys.InvalidOperationException (when image does not exist)

10-09-2008 12:45 PM |

Hi

The problem is that the graphic will be on a different server beyond my control and it may not exist - in the cases where it does NOT exist, I get this JavaScript error.  In "traditional" applications, I simply get a broken image.  Whilst this looks less attractive, it does not cause an error that may worry some end users.

Maybe Silverlight could come with a default transparent graphic that it swaps if the image doesn't exist - that way, not "broken image" icons and no JavaScript errors ;-)

Griff

Re: SilverLight 2 (RCO): Sys.InvalidOperationException (when image does not exist)

11-07-2008 7:23 PM |

I ran into similar problem and was scrathing my head for more than a hour:

Following is what I did.

1) Place the image file in the webapplications ClientBin folder. Then you can directly use your code.

for e.g. I used the below code and it worked fine.

BitmapImage book1 = new BitmapImage(new Uri("book1.jpg", UriKind.Relative));

2) secondly, silverlight doesn't accept gif immage extensions. So I had to convert them to jpg.

Hope this helps you.