imagesource

问题 The application I'm building requires my user to set 4 pieces of information before this image even has a chance of loading. This image is the center-piece of the application, so the broken image link makes it look like the whole thing is borked. I'd like to have another image take its place on a 404. Any ideas? I'd like to avoid writing a custom directive for this. I was surprised that I couldn't find a similar question, especially when the first question in the docs is the same one! http:/

问题 How do I create a System.Windows.Media.ImageSource from a byte array? I have a byte array, containing the exact and complete file contents of a TIFF image file. I need to display this on the screen, and I have no idea where to even start. Supposedly, it can be done (according to my boss, our dev team has done it in the past, but nobody remembers how). Has anyone here ever done something like this before? 回答1: BitmapImage bi = new BitmapImage(); bi.BeginInit(); bi.StreamSource = new

问题 I have a converter in my Windows Phone application but it seems you cannot use "await" methods in it? public object Convert(object value, Type targetType, object parameter, string language) { _IDataService = ServiceLocator.Current.GetInstance<IDataService>(); string imageUrlId = (string)value; byte[] imageByte = await iDataService.GetImage(imageUrlId); return LoadImageAsync(imageByte); } If I make the method async Task it says IValueConverter has no method Task async. This converter returns

问题 I know that there are a few similiar questions but they don´t help me: Have got the following code to show a Image in code behind: BitmapImage logo = new BitmapImage(); logo.BeginInit(); logo.UriSource = new `Uri("pack://application:,,,/ApplicationName;component/Images/Klar.JPG");` logo.EndInit(); The image is in the Images folder at the same level as the bin folder. What is my mistake? 回答1: For information about Pack URIs see here. I believe yours should be: logo.BeginInit(); logo.UriSource

问题 I followed instructions from this page to insert controls to tableLayoutPanel. http://goo.gl/SVKf8D I am using this code to try to add a dynamic picturebox and set it's source: tableLayoutPanel1.Controls.Add(new PictureBox() { Image.FromFile(TableLayoutPanelTool.Properties.Resources.BaldGuyImage)}, 0, 0); I cannot insert image source to picturebox this way. What I need: A way to set the image to the Picturebox that I have added dynamically to the TableLayoutview note:it is ok to give source

问题 How do I implement a DependencyProperty on a custom wpf control for an ImageSource ? I created a custom control (button) which amongst other things does display an image. I want to be able to set the ImageSource for the image from the outside of the control, so I implemented a DependencyProperty. Whenever I try to change the ImageSource though, I am getting a SystemInvalidOperationException : "The calling thread cannot access this object because a different thread owns it." OK, so the main

问题 I have set of images and I am replacing the image source in a button click event. I am getting the flickering effect when replacing the image source. How to resolve this ? Sample <StackPanel> <StackPanel Orientation="Horizontal"> <Image x:Name="image1" Height="200" Width="200" Source="ms-appx:///Assets/custom200.png"/> <Image x:Name="image2" Height="200" Width="200" Source="ms-appx:///Assets/custom201.png"/> <Image x:Name="image3" Height="200" Width="200" Source="ms-appx:///Assets/custom202

问题 Hi i am getting the following exception while fetching the image from server. I works for fetching 5-7 images after that got the following: 06-12 16:35:50.904: WARN/AsyncTask(717): java.lang.InterruptedException 06-12 16:35:50.904: WARN/AsyncTask(717): at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireSharedInterruptibly(AbstractQueuedSynchronizer.java:1254) 06-12 16:35:50.904: WARN/AsyncTask(717): at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:219) 06-12 16:35

问题 I have 4 Images in my Resources Directory into my Portable Project and i would like to use them directly for an ImageSource (because i need to bind it). ImageSource myImageSource = ImageSource.FromResource("resources.image.png"); I tried this but it doesn't recognize the path. How can i use my images for an ImageSource ? 回答1: Ok, my bad i forgot the name of my project before the Resources directory ImageSource myImageSource = ImageSource.FromResource("NameOfProject.Resources.image.png"); 来源：

问题 I was wondering how I could go about converting an ImageSource object (in my case the source property of an image element) to a WriteableBitmap . The WriteableBitmap(BitmapSource) constructor doesn't work in Windows 8 Metro, so I can't do that. I've tried to load the ImageSource object into a stream and then use WriteableBitmap.SetSource(stream) , but I can't figure out how do load the image in a stream either. InMemoryRandomAccessStream ras = new InMemoryRandomAccessStream(); BitmapEncoder