WPF不能刪除文件

Question

我有以下代碼：

imgScreenshot.Source = new BitmapImage(new Uri(ShellFolder.DocumentsFolder() + System.IO.Path.DirectorySeparatorChar + screenshot.Filename)); 
File.Delete(ShellFolder.DocumentsFolder() + System.IO.Path.DirectorySeparatorChar + screenshot.Filename); 

我得到一個錯誤：

{"The process cannot access the file 'C:\Users\rover\Documents\MagicScreenshot\vEhWg3Ra20M.jpg' because it is being used by another process."}

我想過處置BitmapImage的，但這個類沒有實現這個接口。如何正確編寫此代碼？

Answer 1

嘗試：

 BitmapImage bi = new BitmapImage(); 
     bi.BeginInit(); 
     bi.UriSource = new Uri(ShellFolder.DocumentsFolder() + System.IO.Path.DirectorySeparatorChar + screenshot.Filename); 
     bi.CacheOption = BitmapCacheOption.OnLoad; 
     bi.EndInit(); 
     imgScreenshot.Source = bi; 
     File.Delete(ShellFolder.DocumentsFolder() + System.IO.Path.DirectorySeparatorChar + screenshot.Filename);