Thanks Lance for the really informative clarification. 

By using your shared example, now I am able to convert HTML content/text to PDF contents (byte[])

I am having two other concerns here - 
1) See below snapshot, while converting same HTML content/text to Docx, images are not getting populated in Docx, so am I missing something here?

2) Is it possible to convert PDF content (byte[]) to Docx content  (byte[]) ?   

I am referring example 1 - HTML to PDF conversion ( https://docs.telerik.com/devtools/document-processing/pdf-export)

 But, I am not able to find out nuget packages for Telerik.Windows.Documents.Flow.FormatProviders.Html.HtmlFormatProvider and RadFlowDocument.

So which nuget package should be used here?
can you please help here.

Hi

Is there any new information on this or a rough timeline?

Hi

Please when SpreadProcessing library will be available ?

Regards

Ahmed (NoobMaster)

Hi All,

This may be releated, but I just downloaded the .NET Core release of telerik and I've noticed that the Telerik.Windows.Documents.dll file is not present.  What do I need to do to get that file?

Hello ,

today is 20th Sept.

any updates ?

@Ryan,

I also created a Support Ticket for my issue and got the following answer:

This functionality is currently unavailable server-side as it depends on the SpreadProcessing library which is still not ported for .NET Core. You can vote for its implementation and subscribe to receive updates about status changes using the related public item: Document Processing: Provide version for .NET Core.

To achieve the desired goal, you could send the .xlsx document on the client so you can use the Spreadsheet.fromFile()method to load the document in the control. I hope this approach will be suitable for you.

Not sure if you already have an Excel sheet, but if you do you can just return it from ASP.NET Core and then use the Spreadsheet.fromFile() method to load the excel file into the Spreadsheet. Works like a charm for me!

However, at first I tried to use jQuery to make the Ajax call to retrieve a Blob object from the Server but somehow jQuery messes up the Blob data. Therefore, I used the XMLHttpRequest object to retrieve the Blob from the server and that worked immediately! 

Hope this works for you too!

Well the latest that i see for Kendo UI Angular is that Progress has redone all the controls and downgraded the control without all the current features. So it will take time for Progress to get current but i still have projects todo. 

I can only add Kendo UI Angular controls via the CLI; now all your projects have to be done only 1 way-CLI. Try and do a manual add, good luck.

Telerik is going by the way side which means the document processing for these systems are not happening. 

In case you do not understand I am not amused at all and will not renew in October. I can do the https://www.primefaces.org/primeng/#/ be just as confused and not spend the renew money.

Tanya,

Just like Marcel I am using ASP.NET Core 2.2 (I did take the time to up to 3.0 preview 8), and received the error "Could not load type 'System.Windows.Size' from assembly 'WindowsBase, Version=4.0.0.0, Culture=neutral, publicKeyToken=31bf3856ad364e35'." I would love to see if there was a version that is compatible with .net core 2.2 for importing an excel file.

Hi Tanya,

It has been three months since your latest post here, telling us that server-side spreadprocessing is on the roadmap for .NET Core, but that you don't have an exact time frame for the release.

I was wondering if there is any news on this?

I am using ASP.NET Core 2.2 (ready to upgrade to 3.0 preview 8 if necessary) and need to load an excel sheet which resides on the server into the .NET Core Spreadsheet control, but I too get the error "Could not load type 'System.Windows.Size' from assembly 'WindowsBase, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'."

Kind regards

I'd like to share my experience with this, maybe this might help someone or the support team might suggest better alternatives. In short, what we're trying to achieve:

1. User uploads some .xlsx file with values from the client
2. We do some server-side processing and modify this file
3. We send modified file back to client, so the user can preview and approve changes in Spreadsheet component
4. User confirms changes and file is being saved on server

We encountered several problems with this task. First, we can't use Spreadsheet Processing, because it lacks .net core version. Second, Xamarin version of RadSpreadStreamProcessing (as was suggested as an option by Lance) lacks file reading capability, which is crucial for us. Third, Spreasheet control has an ability to read .xlsx files on the client, but it doesn't work well with files generated with custom libraries (we tried ClosedXml, EPPlus and npoi). It seems that javascript code in spreadsheet component doesn't handle arbitrary prefixes of xml namespaces in open xml files well. Looks like native json format is the best option for it.

So the only temporary solution we came up with is to write tiny application with .net 4.0 that uses Telerik.Web.Spreadsheet.Workbook.ToJson and converts file generated by ClosedXml to Json representation to be consumed by Spreadsheet on the client. It's ugly, but helps us to test proof of concept.

What about spreadsheet?

I need to load a xlsx file in the .net core web control

Just wanted to reply that I have had success using the PdfFormatProvider from these Document libraries in a .NET core 2.2 ASP.Net web app, the same application I couldn't get it to work with from my original post over two months ago. I used the DLLs from the Xamarin R2 2019 release. Using this in conjunction with the new PDF Viewer worked pretty flawlessly. Very excited!

Thank you all for keeping this post live and working towards a solution! Now time to build some useful apps!

HB

Hello, Tanya!

I'm trying to build a small prototype with trial version of Telerik Spreadsheet processing and Kendo Spreadsheet for asp.net core. In my asp.net core 3.0 project I reference latest dlls for Wpf (2019.2.527).

Everything builds just fine, but when I try to

Workbook workbook = new Workbook();

I get the following error:

TypeLoadException: Could not load type 'System.Windows.Size' from assembly 'WindowsBase, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'.

Is there anything to do about it?

Regards

Hi Tonya,

On this R2 2019 post (titled: "New library for working with PDF documents: PdfProcessing") for Xamarin, it mentions the PdfProcessing support for .NET Standard. So this is what we've been waiting for, correct?

Also want to express my appreciation for posting the update Tanya. We are very much looking forward to this. When is the expected release date of R2 2019?

Thanks for the update!

Hi Tanya,

Thanks for the update!  I appreciate the timeline as it will help us in planning this (our current project) out.

Hi Tanya,

Has this been released to general availability yet, or when it will be if it has not?

Thanks!

Tanya,

I just noticed your comment: "...you should have a valid license for UI for WPF in order to be able to see this version."

We have DevCraft Complete which comes with the Telerik UI for WPF package, yet I still cannot see the betas, unless that license does not count(?). Could you perhaps IM me a direct link?

Note to others: I also tried setting up a "shim" following this guide (.NET Framework > .NET Standard >.NET Core) but did not get any differences. 'System.Windows.Point' of the 'WindowsBase' assembly still could not be found. Ideally this is not the way to go anyhow because it would not be truly cross-platform compatible, but for those of us that just want to use .NET core in our existing windows infrastructure and still be able to use these "legacy" parts, this seemed like the way. But again, could not get it to work for 'WindowsBase'.

Update to below comment:

Testing with VS 2019 Preview, no difference. Guessing that this has to do with the fact that the WPF beta is not available for download atm.

Tanya,

Looks like there is no available betas in the WPF section currently (as of 3/16/19). Thinking that it is part of the latest release, I installed the latest Telerik WPF package (2019.1.220). Found the binaries in 'C:\Program Files (x86)\Progress\Telerik UI for WPF R1 2019\Binaries\NetCore\*' for 'Telerik.Windows.Documents.Core.dll', 'Telerik.Windows.Documents.Fixed.dll', and 'Telerik.Windows.Zip.dll'. Imported those into my ASP.net core project, builded successfully but throws an exception when I call the class I am needing (PdfFormatProvider):

System.TypeLoadException: 'Could not load type 'System.Windows.Point' from assembly 'WindowsBase, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'.'

I did install the latest preview of .Net Core 3 (3.0.100). I enabled Tools > Options > Project and Solutions > .NET Core > Use Previews of the .NET Core SDK. I am using the latest release build of VS 2017 (15.9.9). The blog you posted did say that VS 2017 would work, although I am seeing warnings when downloading .NET Core preview that it will only work with 2019. Perhaps that is part of the problem.

Was the beta taking down, or perhaps available else where? Appreciate any insight you can provide.

Greetings, Tanya.

I appreciate you providing the information you did - that helps me see that the progress is being made, and helps me feel better as a customer.

Here’s to the hopes of this becoming avavailable soon.

Hi Tonya and Stefan,

We import word docs and do some major editing.  Sometimes we have to merge multiple docs.  We export the result to PDFs.  If no TOC is needed, we use your product for the export.  If we need a TOC, your PDF processor does not currently support adding one after the above is complete. In that case, we export to HTML and then import it to another product which can export the HTML to a PDF with a TOC (huge overhead here, but not much choice).  This is all done through a web application.  We would have done the development in Core for hosting flexibility if your product supported it. 

My guess is that the majority of folks asking for this functionality are wanting to build web applications in Core using your products.

I just bought DevCraft complete and now feel that it was a waste of my time and money; this is critical for all web apps and i have seen past issues like this not happen.  yes, i am not happy with myself in not looking at Telerik closer and assuming that this kind of interop is important to Telerik and Progress.
sorry 2+ years of waiting tells me that this is not going to happen, i dont care what a Progress / Telerik developer says they are waiting on.

I need to display an Excel file in the Spreadsheet control . mvc core
like this
@{
    var path = ViewBag.Path;
    var workbook = Telerik.Web.Spreadsheet.Workbook.Load(path);
}
        @(Html.Kendo().Spreadsheet()
                            .Name("spreadsheet")
                            .Toolbar(false)
                            .Events(e => e.Render("RenderXLS"))
                            .BindTo(workbook)
                          .Deferred()
        )

We need to read, write and update spreadsheets on the server (bulk data) with .NET Core. When will this be available?

Any time estimate when we get this feature??

@Stefan welcome. Any time estimate when we get a first version? :)

Our Main Use Case:

Read/Write Excel on the Server (bulk data)
Generate PDF on the Server

Currently utilizing these:
Telerik.Windows.Documents.Core.for.Net40
Telerik.Windows.Documents.Fixed.for.Net40
Telerik.Documents.SpreadsheetStreaming.for.Net40

However, it is conceivable that I may utilize all of them in the future

Thank you

Hello Tanya,

Use Case = Need to have the same functionality in .NET Core, it does "not" work right now unless the full network is targetted; additionally, it does not work even with the windows compatibility pack because of windows media dependencies.

It would be great to have this functionality cross-platform Win/Mac/Linux

It would be great to have Async versions too

In the mean time, we moved to EPPLus library ( https://github.com/JanKallman/EPPlus ) , 
Version 4.5 works perfectly with .net Core ( https://www.nuget.org/packages/EPPlus/4.5.0.3-rc )

Any update on this?  Is there an estimated release date?

Thanks

Any update on this?  Is there an estimated release date?

Thanks

Simon

>> Stefan Stefanov
Guys just make it word with netstanrad. 2.0 is almost here but we still need to keep all export excel pdf staff in separate project

Hi Stefan,
in our ASP.NET Core Solution, we need to create Excel documents programmatically as a result of a controller view, so the user can save it.

We currently help us by using the Telerik UI for ASP.NET Core SpreadSheed Component, but this more complicated and by for not as flexible as the RadSpreadProcessing library (e.g. you can't put some custom infos into the top cells and some lines below put all the result records from a linq query... you have to decide).
Torsten

HI, 
for some current projects we have the requirement to generate pdf documents. The client give us some word (.docx and .xlsx) templates to fill and manipulate to later export as PDF using Telerik document processing for every part of the process. We are now upgrading some sections of the application to .Net Core and micro services; In the old asp.net version we do all of this without any problem at server side. For the new Core app, our solution was to create a separate process (full .net) that handle the document processing on demand until we have a Core version of the document processing libraries that we can deploy with the app. This solution, as you can see, isn't very portable to cloud at this moment. Hope this can help. 

Yes - on the server. Yes, I would generate the document and email it or store on the server. The HTML data is stored on the server in a zip file (templates basically).  And actually to add to that, most of the time once the flow document has been generated I would convert it to a PDF. And also we will have the PDF files also in those templates and so we need to load those and add some content in (Sometimes using HTML to PDF conversion, Otherwise just adding bits of text in like filling in forms) and then get it to the user. HTH

Currently I take HTML and generate word documents. I also generate PDF documents including bits converting from HTML.

RadPdfProcessing, RadSpreadProcessing, RadWordsProcessing, RadZipLibrary

RadSpreadProcessing, RadZipLibrary

RadPdfProcessing, RadSpreadProcessing, RadWordsProcessing, RadZipLibrary

All of them. seriously. waiting  for update

I'm using PDF Processing and Words Processing

.NET Standard 2.0 preview released. Any update?

Is there any update on this?