WPF webbrowser opens PDF file in Adobe reader window - wpf

Question

I am creating one 32bit WPF application.It needs to show created PDF in WebBrowser control.
While doing ,
"WebBrowser.Navigate(new Url("D:\\TestPDF\\MyDocument.pdf"))";
it opens PDF file in Adobe reader window.
My Need is PDF should be opened inside WebBrowser not in Adobe reader window.
I have also tried WebBrowser.NavigateToStream and WebBrowser.Source but its not working.
What can be solution for this? I am looking forward for help.

Answer 1

Have you checked, that you have the Adobe reader installed for the Internet Explorer? You should also verify, that your Internet Explorer is allowed to open PDF-Files embedded.
Sometimes it helpes, to use another Internet Explorer Rendering Engine. This can be archived in with the following code (be warned: Administrator rights are needed for that).
private void CheckAndFixWebBrowserRenderingEngine()
{
RegistryKey baseRegistryKey = Registry.LocalMachine;
string renderingEngineSubKeyString = #"SOFTWARE";
// 64bit operationg systems have another registry path
if (Environment.Is64BitOperatingSystem)
{
renderingEngineSubKeyString += #"\Wow6432Node";
}
renderingEngineSubKeyString += #"\Microsoft\Internet Explorer\MAIN\FeatureControl\FEATURE_BROWSER_EMULATION";
var assemblyValueKey = Path.GetFileName(App.ResourceAssembly.Location);
var renderingEngingeValue = 9999; // check other values below
try
{
RegistryKey sk1 = baseRegistryKey.CreateSubKey(renderingEngineSubKeyString);
var value = sk1.GetValue(assemblyValueKey);
if (value == null || value.ToString() != renderingEngingeValue.ToString())
{
sk1.SetValue(assemblyValueKey, renderingEngingeValue);
LogHandler.Instance.Add(string.Format("Did update webbrowser rendering engine from {0} to 9000.", value == null ? "[missing]" : value));
}
}
catch (Exception ex)
{
LogHandler.Instance.Add("Could not check webbrowser rendering engine in registry.");
LogHandler.Instance.Add(ex.ToString(), Logging.LoggingPriorities.Exception);
}
/*
9999 (0x270F)
Internet Explorer 9. Webpages are displayed in IE9 Standards mode, regardless of the !DOCTYPE directive.
9000 (0x2328)
Internet Explorer 9. Webpages containing standards-based !DOCTYPE directives are displayed in IE9 mode.
8888 (0x22B8)
Webpages are displayed in IE8 Standards mode, regardless of the !DOCTYPE directive.
8000 (0x1F40)
Webpages containing standards-based !DOCTYPE directives are displayed in IE8 mode.
7000 (0x1B58)
Webpages containing standards-based !DOCTYPE directives are displayed in IE7 Standards mode.
*/
}