public void GetResource() { //Add another resource manager to the list Assembly ass = Assembly.LoadWithPartialName("Spring.Core.Tests"); string baseName = "Spring" + "." + "Resources.Images"; resourceManagerList.Add(new ResourceManager(baseName, ass)); messageSource.ResourceManagers = resourceManagerList; object obj = messageSource.GetResourceObject("bubblechamber", CultureInfo.CurrentCulture); Assert.IsNotNull(obj, "expected to retrieve object form resource set"); Bitmap bitMap = null; //.NET 1.0 returns this as a base64 string while .NET 1.1 returns it as a Bitmap //There are some isues with resx compatability between framework versions. if (obj is string) { //thanks dotnetdave for the string to bitmap cookbook. //http://www.vsdntips.com/Tips/VS.NET/Csharp/76.aspx string ImageText = obj as string; Byte[] bitmapData = new Byte[ImageText.Length]; bitmapData = Convert.FromBase64String(FixBase64ForImage(ImageText)); MemoryStream streamBitmap = new MemoryStream(bitmapData); bitMap = new Bitmap((Bitmap)Image.FromStream(streamBitmap)); } else { bitMap = obj as Bitmap; } Assert.IsNotNull(bitMap, "expected to retrieve BitMap. Instead Type = " + obj.GetType()); Assert.AreEqual(146, bitMap.Size.Width, "Width of image wrong"); Assert.AreEqual(119, bitMap.Size.Height, "Height of image wrong"); object obj2 = messageSource.GetResourceObject("notExist", CultureInfo.CurrentCulture); Assert.IsNull(obj2, "non existent resourse found"); }