I look for a reporting library for flex 4 which it is an open source one or a free one.
Can i suggest me libraries? If they exist.
Have a look at KapLab Kolbert reporting components. It's free for non commercial usage.
Alos, Axiis components are open-source I think
Related
I have an application that we are going to upgrade from .net framework 4.6 to .net 6.
However one class library has to be run in .net 5 because of limitations in a Linux version that we have to use.
So I wonder if it is possible to use the .net 5 library with .net 6?
I tested experimentally on a simple case. The .NET6 app referencing .NET5 library could be built without any warnings or errors and ran without runtime problems:
Some related quotes from Microsoft Docs:
If you're using libraries to break down an application into several components, we recommend you target net5.0 or net6.0. For simplicity, it's best to keep all projects that make up your application on the same version of .NET. Then you can assume the same BCL features everywhere. (...)
To me, this sounds like a good practice to have everything on the same version (5 or 6), but not like a strong requirement.
I'm not 100% confident about edge cases, however. I couldn't find any confirmation of compatibility. At the moment, I would hesitate running a complex production app built from components mixing 5 and 6.
I am working on a ThreadX based embedded system. I want to include a 4.5 inch graphical UI to this device and hence exploring on the possible GUI library / frameworks existing for ThreadX based embedded applications - I am open for both open source and licensed frameworks.
Please help.
Thanks
Arun
Azure RTOS GUIX is probably your best bet. It's integrated with ThreadX already, has the same license, and comes with lots of examples.
I have been researching widely on this topic, but still haven't found a proper guide.
What I am doing is to create a GUI for an embedded system based on Linux Embedded and I would like to know if:
it's going to be possible to code the GUI using HTML, CSS and JS?
is it worth looking into porting a framework such as React JS?
is there any other alternative that allows for quick development and satisfying UI?
I am very new to this and I would be very grateful if someone more experienced could point me in the right direction.
Thanks so much.
I've just written an article listing the top 5 libraries for creating GUI on Embedded Linux. I've only mentioned one tool that renders HTML UI, the Sciter engine. It's much more compact than Webkit or Chromium. The owner of the project, Andrew Fedoniouk, recently released a new version called Sciter.Lite that will support embedded devices. Check out these two resources.
https://sciter.com/sciter-lite-is-published/
https://sciter.com/windowless-sciter-android-and-iot-devices/
Demos are already available on their GitHub
sdk/bin.lnx/x64lite
sdk/demos.lite
You don't have to limit yourself to HTML UI, check out the other tools I've recommended. All of them have a free version. For rich UI, I think HTML UI is easier. I mean, Sciter Notes doesn't look to shabby and it's just under 5Mb for Win, Linux and Mac. But the backend is C++. For more minimal hardware, you'll have to look into the C/C++ toolkits I've listed. TotalCross are planning to support Android XML but has not been released yet. So you can check on them also.
Oh. Almost forgot. Two whitepapers comparing QML and HTML5 were published in 2017. Qt requires you to register so I'll just give you the links so that you can download them without registering :)
Paper 1: Qt QML v HTML5 –a practical comparison
Published on May 2017 by Sequality Software Engineering an Austrian firm that is a Qt partner and does Qt consultancy.
Downlink Link 1, Download Link 2
Here is a review of the paper by a software engineer, Amir Shrestha, who provided the first download link. There is more discussion at Hacker News. There was also an interesting discussion thread in a YouTube video about the comparison. You can read the YT comment section but first search "Andrew MacAulay" and read that thread. He was the lead engineer for the autopilot system for the F-18 jets and has worked in other senior embedded roles.
Paper 2: Qt or HTML5? A Million Dollar Question
Published on Oct 2, 2017, by Burkhard Stubert a Qt consultant and developer.
Download Link
Here is the discussion on Hacker News.
An interesting piece of information I found in the second paper is that 90%+ of all home appliances are powered by micro-controllers with no OS or a very minimal RTOS.
Another interesting piece of information I discovered while writing my article, is that Micrium OS and components are now open-source under Apache 2.0. It has its own GUI toolkit written in C but it only targets Micrium OS and not embedded Linux. If developers start adopting Micrium OS (it was already quite popular in the industry and even launched in space) perhaps you can start looking into it too.
i was just wondering what the benefits are in using PCL with Xamarin.Forms.
I mean you share the Code between each Platform anyway.
In Xamarins native approach it is quite clear.
So maybe anybody can tell me why to use PCL in Xamarin.Forms?
PCL allows the maximum in code sharing across platforms. PCL will by it's very nature limit you to using only those API's that can be shared from platform to platform.
While you can use Shared Projects, you will find yourself using compiler directives and making coding sacrifices that can lead to bad coding practices across anything but the smallest of projects.
Using the Xamarin Forms 2.3.3 or later you can of course embed Platform Specific Controls in your Xamarin Forms pages in your PCL and they will only render when run on the platform.
In addition of maximum code sharing, it allows you to follow best practices like SOLID.
Also, please remember that there are 3 choices (not only 2):
Portable Class Library
Shared Library
.NET Standard Library
.NET Standard Library is still an ongoing work in process, so it's not there yet. But, it will be the way to go!. So, PCLs today can give you an excelent migration path to the .NET Standard Library way tomorrow.
Hope this helps.
I am starting to develop a J2ME app and the built-in GUI components of the java library are ugly and inflexible.
Can anyone recommend a nice and easy to use (open-source...) widget library?
Not too many choices out there. The best option is probably Sun's LWUIT. It's recently been GPL'ed. Alternatively you can go with J2ME Polish, which is licensed under GPL and commercially depending on what you are doing with it.
Our company is probably going to go with LWUIT. Seems likely that it will be the best-supported API in the future.