我尝试在圆圈中使用BitmapImage类的实例,但有时我会收到BitmapImage未初始化的错误消息。使用前如何检查位图图像是否已初始化?
工作位图时常用 2 个事件,图像成功打开时触发 1 个,图像失败时触发另一个;
var myImage = new BitmapImage(new Uri(@"Images/img.jpeg",UriKind.Relative));
myImage.ImageOpened += myImage_ImageOpened;
myImage.ImageFailed += myImage_ImageFailed;
void myImage_ImageFailed(object sender, ExceptionRoutedEventArgs e)
{
//handle failed event
}
void myImage_ImageOpened(object sender, RoutedEventArgs e)
{
//handle Image Opend OK event
}