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Posted on November 27, 2018

DotNetBrowser 1.19

The new version of DotNetBrowser got more flexible and stable due to the following changes:

Browser.Dispose(bool checkBeforeUnload) Implemented

Due to this method, it got possible to invoke the DialogHandler.OnBeforeUnload method which is fired if the web page contains the onbeforeunload JavaScript event.

FileChooserParams.Filter Introduced

This property provides a meaningful description of the file extensions accepted by the file chooser. This information comes from the accept attribute of the input HTML element with the type=file attribute.


  • Now DotNetBrowser is able of managing download process even if the Browser instance which initiated the download activity has been disposed.
  • Starting with this update you can set the specific bitmap scaling mode for a WPFBrowserView instance in the lightweight rendering mode.
  • We also improved the memory usage in the Chromium binaries verification functionality.

Fixed issues:

  • The NullReferenceException exception which is thrown when disposing the WinFormsBrowserView instance in the heavyweight rendering mode.
  • The ArgumentOutOfRangeException exception which is thrown when setting the CultureInfo.
  • Inability to use a custom client certificate if it already exists in the certificate storage.
  • The UnauthorizedAccessException exception which is thrown if the LoggerProvider.Instance.OutputFile property is set to a path which has no write access.
  • The OutOfMemoryException exception which is thrown during verification of the Chromium binaries.
  • Inability to navigate with the arrow keys inside a drop-down list in the lightweight rendering mode.
  • The CertificateVerifyParams.VerifyFlags property always returning null.
  • The issue with the relative path in the BrowserContextParams constructor.

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