I would like to manually load HTML into a web browser control and make sure it does not create any internet traffic, so just show the content to the best of its abilities.
As specified in MSDN, WebBrowser.IsOffline is read-only.
Is there a way to set it (without using reflection hacks)?
Or do I have to resort to using a 3rd party control for this:
The most complete C# Webbrowser wrapper control
You can set WebBrowser.AllowNavigation to False.
Whether the control can navigate to another page after its initial page has been loaded.
Related
I'm making a winform application containing a WebBrowser control. I'm trying to connect to a Web page that contains ads, but it's affecting the loading speed of the page. The adblock plugin for Chrome blocks ads. So is there any way to add that plugin or any other way to achieve the same result?
The adblock plugin is just some js script with some browsers specific metadata on top. You can check the source code here: https://adblockplus.org/source
You can probably sort something out with this (like run the plugin's code after page load)
Is possible to make the .Net Webbrowser control render form elements, like buttons, input text, with winform elements appearance? Using the visual styles of OS to look like an native Windows application not an page displayed in IE?
It is not possible configure or to supply custom rendering for buttons and input controls in IE - without CSS you get what browser decided to use as default.
It is possible to style buttons/input elements with CSS pretty much whatever way you want.
I am not entirely sure what you want to get. Possible you can render the entire form as it is in the broswer. WPF let you embed winform in the browser:
http://www.codeproject.com/Articles/31429/Embedding-a-NET-WinForms-Application-in-an-Interne
It is not possible as #Alexei Levenkov Informed.
But I recommend you to have look over this link where the web browser is created with C#.
I haven't looked into it very much but am struggling to find relevant information on the topic. I basically want to create a browser that applies a filter to a webpage by changing colors in a webpage. My guess is that I will have to change the html once loaded or something, would this work? Do I have other options?
PS. I don't just want to make every color darker, I would more like to invert the colors.
Edit:
If any you were wondering, I am talking about the XAML browser component that can be used in a Windows Phone application.
I think the simplest way to do that is to inject some Javascript into your page once it has loaded.
To do that, you need to set the IsScriptEnabled to true on your WebBrowser control and then subscribe to the Navigated event.
When that event occurs you can inject some JS codeby using the WebBrowser.InvokeScript method.
Here is an example of JS code that darken the page : JavaScript: Invert color on all elements of a page
If you are talking about in a PC internet browser, you can find an add-on to execute Javascript automatically, such as Greasemonkey for Firefox. If you are talking about Windows Phone's Internet Explorer, I don't really know what you could do there, as I don't think they allow add-ons.
I'm using a standard WebBrowser control to perform various automated web requests. I am aware of the default IE 7 setting unless changed by registry, which I have done, and now use a mainly functional version of IE 10 embedded within my program.
Unfortunately, there are times when I need to click JS buttons to add data to the displayed webpage, and other times when there are Modal popups that require me to input information. Webbrowser chokes on this, and for the button, and popup, does nothing.
I am aware of the route of using ScriptInvoke to send my data, but I wondered if there is any way I can avoid this and just use the WebBrowser control as if it where a normal browser, that accepts the two described functions.
Thanks to all,
Stan.
I have a WinForms program written on .NET 2 which hosts a webbrowser control and renders asp.net pages from a known server.
I would like to be able to drag, say, a tree node from a treeview in my winforms app into a specific location in the hosted web page and have it trigger a javascript event there.
Currently, I can implement the IDocHostUIHandler interface and getting drag\drop events on the browser control, then call Navigate("javascript:fire_event(...)") on the control to execute a script on the page. However, I want this to work only when I drop data on a specific part of the page.
One solution, I suppose, would be to bite the bullet and write a custom browser plugin in the form of an activex control, embed that in the location I want to drop to and let that implement the needed drag\drop interfaces.
Would that work?
Is there a cleaner approach? Can I take advantage of the fact that the browser control is hosted in my app and provide some further level of interaction?
Take a look at the BrowserPlus project at Yahoo.
It looks like they have built a toolkit so that you don't have to do the gritty work of writing the browser plugin yourself.
If you can find out the on screen position of the part of the page you are interested in, you could compare this with the position of the mouse when you receive the drop event. I'm not sure how practical this is if you can get the info out of the DOM or whatnot.
As an alternative could you implement the mouse events on the bit of the page using javascript?