Having trouble creating a PDF with ABCPdf using HtmlOptions.OnLoadScript?

Hey everyone, I'm currently working on a bootstrap-based HTML page and trying to generate a PDF from it using ABCPdf. I've been attempting to run a JavaScript script to apply some custom styles to my HTML content, but for some reason, it's not working as expected. Does anyone have any insight into what might be causing this issue?


Doc theDoc = new Doc();
theDoc.Rect.Inset(5, 20);
theDoc.HtmlOptions.Timeout = 3000000; 
theDoc.HtmlOptions.UseScript = true;
theDoc.HtmlOptions.PageCacheEnabled = false;
theDoc.HtmlOptions.DoMarkup = true;
theDoc.HtmlOptions.HostWebBrowser = false;
theDoc.HtmlOptions.Media = MediaType.Screen;
theDoc.HtmlOptions.BrowserWidth = 1500;
theDoc.HtmlOptions.AddLinks = true;
string script = @"var elemento = document.getElementById('description');"
                  +"for (i = 0; i < elemento.childNodes.length; i++) {"
                  +    "if (elemento.childNodes[i].className == 'row') {"
                  +       " if (elemento.childNodes[i].offsetHeight > 200) {"                                    
                                 +            "elemento.childNodes[i].className += ' saltoPagina'; } } }";

theDoc.HtmlOptions.OnLoadScript = script;
int theID;
theID = theDoc.AddImageUrl(url, true, 0, true);

Any help or guidance would be greatly appreciated! Thank you. :)

javascriptc#asp.netpdfabcpdf

Answer №1

To solve the issue at hand, when working with ABCPdf, it is imperative to include the following line of code in order to execute JavaScript effectively (note that jQuery may not work as expected without this setup):

 theDoc.HtmlOptions.Engine = EngineType.Gecko;

After implementing the above line, you can proceed to run your code smoothly:

theDoc.HtmlOptions.GeckoSubset.OnLoadScript =
                @"(function() {
                        window.ABCpdf_go = false;

                        var element = document.getElementById('description');
                        var childNodes =  element.childNodes;
                        var count = 0;
                        for (i = 0; i < childNodes.length; i++) {  
                            if(childNodes[i].className == 'info'){ 
                                count = count + childNodes[i].offsetHeight;
                                if(count > 1600) {
                                    count = childNodes[i].offsetHeight;
                                    var elements = childNodes[i].childNodes; 
                                    for(j = 0; j < elements.length; j++) { 
                                        if (elements[j].className == 'infoDescrip'  && i != 1){
                                            elements[j].className += ' page-break';
                                        }        
                                    }
                                }           
                             }   
                        }


                        window.ABCpdf_go = true;
                })();";

However, please keep in mind that utilizing EngineType.Gecko may cause compatibility issues with the Bootstrap library.

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