How to release the file used for BitmapImage?

Question

You need to release the 1.jpg file for writing after BitmapImage started working with another file.

Here is the code

 using System; using System.Drawing; //в ссылке System.Drawing using System.Windows.Media.Imaging;//в ссылке PresentationCore namespace Test { class Program { static void Main(string[] args) { BitmapImage img; img = new BitmapImage(new Uri(@"D:\img\1.jpg")); //Несмотря на переход к 2.jpg, файл 1.jpg остается занят img = new BitmapImage(new Uri(@"D:\img\2.jpg")); Image i = Image.FromFile(@"D:\img\3.jpg"); Console.WriteLine(@"Try write in D:\img\1.jpg"); Console.ReadKey(); i.Save(@"D:\img\1.jpg"); } } }

Community spirit ♦ one · Accepted Answer · 2016-12-16T11:44:23

The problem is in particular behavior. A slightly different solution:

 public static ImageSource BitmapFromUri(Uri source) { var bitmap = new BitmapImage(); bitmap.BeginInit(); bitmap.UriSource = source; bitmap.CacheOption = BitmapCacheOption.OnLoad; bitmap.EndInit(); return bitmap; }

After creating the file will be immediately closed.

Related Links:

https://social.msdn.microsoft.com/Forums/vstudio/en-US/5b2270cb-f182-4f5f-a6c6-c78dfe4e3230/how-to-dispose-a-systemwindowsmediaimagesourceforum=wpf https://stackoverflow.com / questions / 10319447 / release-handle-on-file-imagesource-from-bitmapimage

It is worth adding bitmap.CreateOptions = BitmapCreateOptions.IgnoreImageCache;
Then it will be possible to re-upload the file with the same name, but already changed contents.

Garrus_En Garrus_En 590 2 eleven · Answer 2 · 2016-12-16T11:33:07

Try to initialize the drawing otherwise:

 var stream = File.OpenRead(Directory.GetCurrentDirectory() + @"\1.jpg"); bitmap.BeginInit(); bitmap.CacheOption = BitmapCacheOption.OnLoad; bitmap.StreamSource = stream; bitmap.EndInit(); stream.Close();

After closing the stream, the file will be unlocked.

But I can't replace the contents of BitmapImage a second time.

How to release the file used for BitmapImage?

2 answers 2

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