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  • Morten Peter Hagh Jensen 25 posts 85 karma points
    Apr 19, 2016 @ 06:55
    Morten Peter Hagh Jensen
    0

    PdfHelper return Object reference not set to an instance on 7.4

    I have installed PDF Creator on a 7.4. installation. If I test using the Razor Example template, I can create a PDF but when using the PdfHelper it returns

    System.NullReferenceException: Object reference not set to an instance of an object.
    
    
    
    Line 3:  @helper Start() {
    Line 4:      <!-- Start Root -->
    Line 5:         @Html.Raw("<fo:root xmlns:fo=\"http://www.w3.org/1999/XSL/Format\" xmlns:ibex=\"http://www.xmlpdf.com/2003/ibex/Format\">")
    Line 6:      <!-- End Root -->
    Line 7:  }
    

    I have created a new template:

    <?xml version="1.0" encoding="UTF-8" ?>
    @inherits Umbraco.Web.Mvc.UmbracoTemplatePage
    
    @{
        Layout = null;
        //Response.ContentType = "text/xsl";
        //Response.AppendHeader("X-Pdf-Render", "true");
    
        // -- Uncomment this to force the browser to download the PDF.
        // Response.AppendHeader("X-Pdf-Force-Download","darren.pdf");
    }
      @PdfHelper.Start()
    
        @PdfHelper.MetaData(@CurrentPage.Name, "Darren Ferguson")
        @PdfHelper.LayoutTwoColumnA4()
    
         @* For ecnryption and password protection there is a:
           PdfHelper.Secure() and PdfHelper.Secure("userPass", "ownerPass") helper *@
    
        @PdfHelper.StartBody()
    
           @PdfHelper.StartArea("header")
              @PdfHelper.Block(@CurrentPage.Name, "Arial", "23pt", "#3399ff")
           @PdfHelper.EndArea()
    
           @PdfHelper.StartArea("body")
    
              @Pdf.RenderRichText(@CurrentPage.BodyText)
    
              @PdfHelper.PagerBlock()
    
           @PdfHelper.EndArea()
    
        @PdfHelper.EndBody()
    
       @PdfHelper.End()
    

    And this just returns the above mentioned error.

    The log file contains this:

     2016-04-19 08:42:41,711 [P16524/D23/T130] ERROR Umbraco.Core.UmbracoApplicationBase - An unhandled exception occurred
    System.NullReferenceException: Object reference not set to an instance of an object.
       at ASP.PdfHelper.<Start>b__0(TextWriter __razor_helper_writer) in c:\Development\Projects\Support\Support\App_Code\PdfHelper.cshtml:line 5
       at System.Web.WebPages.WebPageBase.Write(HelperResult result)
       at ASP._Page_Views_PDF_cshtml.Execute() in c:\Development\Projects\Support\Support\Views\PDF.cshtml:line 12
       at System.Web.WebPages.WebPageBase.ExecutePageHierarchy()
       at System.Web.Mvc.WebViewPage.ExecutePageHierarchy()
       at System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage)
       at Umbraco.Core.Profiling.ProfilingView.Render(ViewContext viewContext, TextWriter writer)
       at System.Web.Mvc.ViewResultBase.ExecuteResult(ControllerContext context)
       at System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive(IList`1 filters, Int32 filterIndex, ResultExecutingContext preContext, ControllerContext controllerContext, ActionResult actionResult)
       at System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive(IList`1 filters, Int32 filterIndex, ResultExecutingContext preContext, ControllerContext controllerContext, ActionResult actionResult)
       at System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive(IList`1 filters, Int32 filterIndex, ResultExecutingContext preContext, ControllerContext controllerContext, ActionResult actionResult)
       at System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive(IList`1 filters, Int32 filterIndex, ResultExecutingContext preContext, ControllerContext controllerContext, ActionResult actionResult)
       at System.Web.Mvc.ControllerActionInvoker.InvokeActionResultWithFilters(ControllerContext controllerContext, IList`1 filters, ActionResult actionResult)
       at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass21.<BeginInvokeAction>b__1e(IAsyncResult asyncResult)
       at System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeAction(IAsyncResult asyncResult)
       at System.Web.Mvc.Controller.<BeginExecuteCore>b__1d(IAsyncResult asyncResult, ExecuteCoreState innerState)
       at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult)
       at System.Web.Mvc.Controller.EndExecuteCore(IAsyncResult asyncResult)
       at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult)
       at System.Web.Mvc.Controller.EndExecute(IAsyncResult asyncResult)
       at System.Web.Mvc.MvcHandler.<BeginProcessRequest>b__5(IAsyncResult asyncResult, ProcessRequestState innerState)
       at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult)
       at System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult)
       at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
       at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)
    
  • Darren Ferguson 1022 posts 3259 karma points MVP c-trib
    Apr 20, 2016 @ 07:17
    Darren Ferguson
    0

    Hi,

    You need:

    @using PdfHelper

    Below:

    @inherits Umbraco.Web.Mvc.UmbracoTemplatePage

    I hope this helps?

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