绑定之前如何在WP7中获取图像

Question

I have worked for Image binding for listbox. For that I have binded the Image Url to Image Source. My proplem is someURL not valid does not contain image. Normally I have loaded defalut image for no url contains items.

That not valid url, binded the image as empty pixel. In this i want to show default image. If no pixel in image means, binding not needed.

string Url="Some URl.jpg";

Binded this "URL" to the Image.

Pls Help me

Answer 1

为此，请尝试在您的图片内容中提供与您图片内容尺寸相等的背景图片。默认情况下，URL中没有图片时会显示背景图片。

Answer 2

Use Stackpanel at background, so when image is loading , it will show by default color of stackpanel, and when image is loaded it will show Image, thereby hiding the background color

StackPanel background = new StackPanel();
background.Background = new SolidColorBrush(Colors.LightGray);

Image img1 = new Image();
img1.Height = 250;
img1.Stretch = Stretch.UniformToFill;

LowProfileImageLoader.SetUriSource(img1, new Uri(n.Image, UriKind.RelativeOrAbsolute));
background.Children.Add(img1);