Question

我正在使用Acrobat Reader 11.0.3和Windows 7，Visual Studio 2012并且已经在Manage Addon中启用了Acrobat Reader

并关注WPF webbrowser opens PDF file in Adobe reader window

尝试两种方法后

仍然有错误

导航到网页已取消即使使用管理员帐户打开WPF程序

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 = System.IO.Path.GetFileName(App.ResourceAssembly.Location);
            var assemblyValueKey = System.IO.Path.GetFileName(System.Windows.Application.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.
            */
        }

        public ReportForm()
        {
            this.formID = "Test Report";
            //base.Initialization();
            InitializeComponent();
            CheckAndFixWebBrowserRenderingEngine();

            String PDFPath = @"C:\Users\LAB-User2\Downloads\Elimination_Methods_in_Polynomial_Computer_Alge(Bookos.org).pdf";
            WebBro1.Navigate("file:///" + PDFPath);

方法2

我还尝试了另一种方法，它添加了参考windowformintegration并使用winform的UserControl，它只能在一个独立的WPF小项目中工作当在我的大项目中集成它时，它出现了错误

String PDFPath = @"C:\Users\LAB-User2\Downloads\Elimination_Methods_in_Polynomial_Computer_Alge(Bookos.org).pdf";
            //WebBro1.Navigate("file:///" + PDFPath);
            webBrowser1.Navigate("file:///" + PDFPath);

private System.Windows.Forms.WebBrowser webBrowser1;
<WindowsFormsHost Margin="1" x:Name="windowsFormsHost1" Height="600" HorizontalAlignment="Left" VerticalAlignment="Bottom" Width="1000"/>

var uc = new UserControl1();
            this.windowsFormsHost1.Child = uc;


application.UI.CreateNewForm("Test Report", new Client.Reporting.Pages2.ClientStatement.ReportForm());

public partial class ReportForm : BaseForm

public void CreateNewForm(string title, BaseForm form)
    mw.CreateNewForm(title, form);


public class BaseMainWindow : MetroWindow
    {
        public virtual void CreateNewForm(string title, BaseForm form)
        {

        }

更新：在集成到大项目之前，它要求在html文件中允许阻止内容和灰色屏幕

<html>
<body>

<object
  classid="clsid:ca8a9780-280d-11cf-a24d-444553540000" id="pdf1" 
  type="application/pdf"
  data="C:\Users\LAB-User2\Downloads\Elimination_Methods_in_Polynomial_Computer_Alge(Bookos.org).pdf"
  style="width: 100%; height: 100%">

<param name="src" "value="C:\Users\LAB-User2\Downloads\Elimination_Methods_in_Polynomial_Computer_Alge(Bookos.org).pdf"></param>

</object>

</body>
</html>

enter image description here

更新：在大型WPF项目中运行代码时，它显示红叉 enter image description here

更新：更新后的html工作在独立的html文件中，但是在WPF大项目中集成，它无法显示并且只显示红叉

String temphtml = "<!-- saved from url=(0016)http://localhost --><body style=\"border: 0; margin: 0; padding: 0\"><object classid=\"clsid:ca8a9780-280d-11cf-a24d-444553540000\" id=\"pdf1\"  type=\"application/pdf\" data=\"02_LAB_LeaveApplication.pdf\" style=\"width: 100%; height: 100%; border: 0; margin: 0; padding: 0\"></object><script>window.onload = function(){ window.focus();pdf1.setActive(); }</script></body>";
            System.IO.File.WriteAllText(@"C:\Users\LAB-User2\Desktop\vpfs-ivpfs-client\iVPFS_Client\Application\bin\Debug\a.html", temphtml);            
            this.WebBro1.Navigate(System.IO.Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "a.html"));

更新虽然运行从codeproject下载的项目，它显示错误，然后可以显示pdf并打开时有几次空白，然后我将代码和库复制到一个小的WPF项目并运行，它也出现错误，只显示空白https://docs.google.com/file/d/0Bxs_ao6uuBDUeV8yREVBOExSbW8/edit?usp=sharing

Answer 1

您可以生成临时HTML文件以嵌入所需的PDF：

<body>

<object
  classid="clsid:ca8a9780-280d-11cf-a24d-444553540000" id="pdf1" 
  type="application/pdf"
  data="test.pdf"
  style="width: 100%; height: 100%">

<param name="src" "value"="test.pdf"></param>

</object>

</body>

有趣的是，要使其与本地（file：//）PDF文档一起使用，我必须同时指定 data 属性和 src 参数。当它通过来自localhost的http提供时，仅数据就足够了。

更新：我不知道为什么这对OP不起作用，所以我已经做了一个非常基本的C# WebBrowser project演示。它在我的环境中运行得非常可靠（Win8，IE10，Acrobat Reader 11.0.3）。

更新：我想我明白为什么会这样。您的项目使用WPF，而我的示例使用Winforms。对不起，我没有注意到这一点。 WPF WebBrowser具有不同的security model，默认情况下它在IE保护模式下运行。

使用WPF WebBrowser，我设法摆脱了提示（注意），但我确实确认Acrobat Reader控件只是暂时挂起加载文件：

<!-- saved from url=(0016)http://localhost -->

<body style="border: 0; margin: 0; padding: 0">

<object
  classid="clsid:ca8a9780-280d-11cf-a24d-444553540000" id="pdf1" 
  style="width: 100%; height: 100%; border: 0; margin: 0; padding: 0">

  <param name="src" "value"="test.pdf"></param>

</object>

<script>
window.onload = function()
{
  window.focus();
  pdf1.setActive(); 
}
</script>

</body>

Acrobat Reader控件is known存在保护模式问题。您可以更轻松地直接在WPF项目中托管Acrobat Reader ActiveX控件，而不是试图找到解决方法。以下是它的完成方式：

http://www.codeproject.com/Articles/380019/Using-Adobe-Reader-in-a-WPF-app http://hugeonion.com/2009/04/06/displaying-a-pdf-file-within-a-wpf-application/

如何在Web浏览器控件中显示PDF而不是打开Acrobat Reader

1 个答案: