Table of Contents
- Getting Started
- EO.Pdf
- EO.Web
- EO.WebBrowser
- EO.Wpf
- Common Topics
- Reference
- .NET API Reference
- EO.Base
- EO.Base.UI
- EO.Extensions
- EO.Pdf
- EO.Pdf
- Classes
- ClientCertificate Class
- HtmlDocument Class
- HtmlElement Class
- HtmlNode Class
- HtmlTextNode Class
- HtmlToPdf Class
- HtmlToPdfException Class
- HtmlToPdfOptions Class
- HtmlToPdfResult Class
- HtmlToPdfSession Class
- HtmlToPdfSession Class
- HtmlToPdfSession Members
- Properties
- Methods
- Methods
- Create Method
- CreatePaginator Method
- Dispose Method
- EscapeScriptString Method
- ExecScript Method
- Fill Method
- GetCookies Method
- GetCurrentUrl Method
- GetPageStyle Method
- LoadHtml Method
- LoadUrl Method
- RenderAsPDF Method
- ResetTrigger Method
- RunWebViewCallback Method
- ScrollThrough Method
- Submit Method
- PageInfo Class
- PageInfoCollection Class
- PageStyle Class
- Paginator Class
- PdfAction Class
- PdfAttachment Class
- PdfAttachmentCollection Class
- PdfBookmark Class
- PdfBookmarkCollection Class
- PdfCheckBoxField Class
- PdfComboBoxField Class
- PdfDestination Class
- PdfDocInfo Class
- PdfDocument Class
- PdfDocumentEventArgs Class
- PdfDocumentSecurity Class
- PdfField Class
- PdfFieldCollection Class
- PdfGenericField Class
- PdfGoToAction Class
- PdfJavaScriptAction Class
- PdfLaunchAction Class
- PdfLink Class
- PdfListBoxField Class
- PdfListField Class
- PdfListItem Class
- PdfListItemCollection Class
- PdfObject Class
- PdfOnOffField Class
- PdfPage Class
- PdfPageCollection Class
- PdfPageEventArgs Class
- PdfPageLocation Class
- PdfPageRectangle Class
- PdfPageSizes Class
- PdfPortfolio Class
- PdfPushButtonField Class
- PdfRadioButtonField Class
- PdfRadioButtonGroup Class
- PdfRender Class
- PdfSigner Class
- PdfTextField Class
- PdfUriAction Class
- PdfViewerException Class
- PdfViewerPreference Class
- Runtime Class
- YRange Class
- Interfaces
- Enumerations
- Delegates
- EO.Pdf.Acm
- EO.Pdf.Contents
- EO.Pdf.Drawing
- EO.Pdf.Mvc
- EO.Web
- EO.WebBrowser
- EO.WebBrowser.DOM
- EO.WebEngine
- EO.WinForm
- EO.Wpf
- EO.Wpf.Gauge
- EO.Wpf.Gauge.Shapes
- EO.Wpf.Primitives
- EO.Wpf.Themes.Aero
- EO.Wpf.Themes.Classic
- EO.Wpf.Themes.Luna
- EO.Wpf.Themes.Metro
- EO.Wpf.Themes.Royale
- JavaScript API Reference
- .NET API Reference
HtmlToPdfSession.RunWebViewCallback Method (WebViewCallback, Object) |
Run a WebViewCallback delegate in the context of this session.

Parameters
- callback
- The WebViewCallback delegate to run.
- args
- Additional arguments to be passed to your delegate.
Return Value
-
Returns the value returned by the callback.

Internally EO.Pdf use a WebView object to load the page and perform the conversion. You can use this method to interact with this underlying WebView object directly. For example, you can load a page and then execute certain JavaScript in WebView and then perform a conversion. The following code demonstrates how to use this feature:
//WebView and other related classes are defined in EO.WebBrowser //namespace. Also make sure EO.WebBrowser.dll is referenced by //your project using EO.WebBrowser; using (HtmlToPdfSession session = HtmlToPdfSession.Create()) { //Run a callback in the session to load a special request session.RunWebViewCallback((WebView webView, object args) => { //Create a EO.WebBrowser.Request object Request request = new Request(your_special_url); //Add some additional header entries request.Headers.Add(your_special_header_name, your_special_header_value); //Load the request webView.LoadRequestAndWait(request); return null; }, null); //Perform the conversion session.RenderAsPDF(result_pdf_file); }
The following code demonstrates how to load a Url into the converter, then modify it with JavaScript before rendering the page:
//WebView and other related classes are defined in EO.WebBrowser //namespace. Also make sure EO.WebBrowser.dll is referenced by //your project using EO.WebBrowser; using (HtmlToPdfSession session = HtmlToPdfSession.Create()) { //Run a callback in the session to load a special request session.RunWebViewCallback((WebView webView, object args) => { //Load the Url webView.LoadUrl(url_to_be_converted); //Modify the page with JavaScript webView.EvalScript(javascript_to_modify_the_page); return null; }, null); //Perform the conversion session.RenderAsPDF(result_pdf_file); }
