Custom C# Web Browser cannot support javascript - c#

I'm creating a web browser that has an automatic loading of specific web pages, but the problem is that the browser that i created using c# in visual studio wont load javascipt, the browser that i created only load html file, but don't support java script. can anyone help me on how to add some functionality on my custom web browser that will support javascript.

WebKit DotNet is the best port of WebKit powerful browser engine into DotNetFramework.
It has nice and easy tutorials and properties and methods to customize.
It has JavaScript activated by default.
http://webkitdotnet.sourceforge.net/ is the official website.
http://webkitdotnet.sourceforge.net/basics.php is where you can find the basic tutorial

Webbrowser control is really crappy. I'm assuming you're trying to scape some kind of website. For this use HttpWebRequest instead.
If you`re trying create your own webbrowser: don't, or use Webkit or Gecko instead.

In case you're using the webbrowser control you will have to enable JavaScript in your Internet Explorer settings, because the webbrowser control is the Internet Explorer or at least the engine of it. IE has local JavaScript disabled by default, so this could be your problem. As user #user3855678 said I would recommend using Webkit etc too.

Related

Scrape a javascript-generated website in C# without installing a browser

I am developing a website crawler API to scrape a javascript-generated website. The website that we are crawling requires the Javascript to be enabled to fully-render the HTML. I have tried many solutions such as HtmlAgilityPack and AngleSharp, but they are just HTML parsers and they cannot render the page due to missing Javascript capability.
I tried implementing headless browser using Selenium.WebDriver.ChromeDriver, it worked very well in my local machine. However, our production environment is very limited such that only Internet Explorer browser is available and we are not allowed to install any more browser. So this chromedriver did not work, too. Internet Explorer cannot even fully render the website from the browser itself. So IE is definitely out.
Is there a way to scrape a javascript-generated website without having to install a browser? Like implementing a headless browser on a server without that browser installed?
Or is it a dead-end situation. Thanks!
You can try using a solution that uses a fully-functional built-in Chromium and doesn't require installing Google Chrome in the target environment. All the required Chromium binaries will be shipped with the solution.
There are many such solutions for .NET and C#:
CefSharp
An open source .NET wrapper around the Chromium Embedded Framework (CEF). It allows you to embed Chromium in .NET apps.
Supported by community. If you need help with the library use, read docs or ask community. If you need a feature or a bug fix, you would probably need to do it by yourself.
DotNetBrowser
A commercial library that allows integrating a Chromium-based browser with your .NET app to display and process HTML5, CSS3, JavaScript, etc.
It's a proprietary solution supported by a commercial company. If you need help with the library use, read docs or get help from the engineers of this product. If you need a feature or a bug fix, it will be done by the product team as soon as possible. I know that, because I know the engineers from DotNetBrowser team.
WebView2
This control allows you to embed web technologies (HTML, CSS, and JavaScript) in your native apps. The WebView2 control uses Microsoft Edge (Chromium) as the rendering engine to display the web content in native apps. With WebView2, you can embed web code in different parts of your native app, or build all of the native app within a single WebView instance. Supported by Microsoft.
If you need some help, you should contact WebView2 team.

Loading jQuery in a C# windows form application

I'm making a Windows Form application that makes use of the browser tool. The browser does not connect to the internet and is only used to load local HTML content.
It's loading HTML CSS and JavaScript fine, but It cant seem to recognise jQuery. Is there a simple way for MVS to recognise jQuery as a script? All of the errors are related to it not understanding jQuery methods.
JQuery is supported form internet Explorer: 9+
when you use WebBrowserControl you get browser emulator ie 7,
change your regEdit key according with Use latest version of Internet Explorer in the webbrowser control

Open Website containing Javascript code

I want to open some websites which may contain javascript code for example google analytics or piwik. I think the using a webclient is the easiest way to visit websites but does the webclient run javascript code in the background automaticly or how could I get javascriptcode running by visiting a website in C#?
Have you considered using a headless browser like PhantomJS.
If you are looking for something with a UI interface, look at the WebBrowser Control.
If you need to just get the DOM or underlying elements of the DOM, I would suggest Watin. It is very mature and works well and its fast.
WebClient only loads data from the web. It does not interpret it in any way.
If you need to treat the page the way a web browser would, then you need to use a Web Browser control.
in C# there is an Internet Explorer control. You can execute javascript code on a client PC by setting web URL link to this control. Internet Explorer control is a fully functional browser which executes all client code.

Windows Forms WebBrowser control - supports Javascript?

The Windows Forms WebBrowser control (Visual Studio) hosts Web pages and provides Web browsing capabilities to your application.
Does the WebBrowser control have inbuild support for rendering content loaded through Javascript, CSS etc.? Or does it render only plain HTML?
It supports javascript, css and etc. WebBrowser component is wrapper of Internet Explorer, and it works like Internet Explorer installed on your computer.
Flash, Silverlight, Video play correctly too.
Also, you may interact with page content from your .NET code or call .NET methods from javascript through windows.external object.

Is there a way to display HTML page that is not dependent on IE?

My client WPF application needs to display an HTML page. I understand that the webbrowser control uses the version of IE that is installed on the box.
Is there a control to render HTML that can be totally embedded into my application so that it is not dependent on the version of IE, that the user has installed?
What would happed if a user is using IE6?
Thanks
You could always use WebKit .NET instead. It allows you to embed a WebKit browser in your .NET application without having to have extra software installed on the machine.
There is also geckofx if you would rather go the Mozilla Gecko route.

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