webbrowser-control | 易学教程

Internet Explorer 9 RC stops my WinForms WebBrowser control to work in editing mode

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问题 Using the IHtmlDocument2.designMode property set to On to switch a WebBrowser control hosted on a Windows Forms form to editing mode suddenly stopped working after installing Microsoft Internet Explorer 9 RC. Question: Any chance to fix this? I already tried to tweak with doctype or with the EmulateIE7 meta tag but without success. (An example would be this project) Update 2011-02-21: As Eric Lawrence suggested, I adjusted the "Zeta" example to set the document text before setting the edit

Is there a possibility to address elements on a website which have no ID?

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In Vb.net, with a Webbrowser, I normally use GetElementById to address for example a button. I know that there is GetElementFromPoint , which I find extremly laborious. Is there a better, simpler way when the ID is unknown? You will need to use some type of selector. The GetElementByID method works best because if the HTML file is formatted correctly then there should only be one element with that unique ID. The GetElementFromPoint will return an element based on the X,Y coordinate of the document, this is best used in the Document's Click event. The GetElementByTagName name will return a

Web Browser component is IE7 not IE8? How to change this?

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问题 So I have an C# Form application that utilizes the web browser component. Apparently Response.Write(Request.Browser.Version.ToString()); returns "7.0" when I visit my test page from the web browser component. How can I make this web browser component use IE8? 回答1: It appears you need to fiddle with the registry as per this article: - http://blogs.msdn.com/ie/archive/2009/03/10/more-ie8-extensibility-improvements.aspx To run a WebBrowser control in IE8 Standards Mode, use the following new

Getting HTML body content in WinForms WebBrowser after body onload event executes

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I have a WebBrowser control in WinForms whose URL property is set to an external webpage. I also have an event handler for the DocumentCompleted event. Inside this handler, I'm trying to get specific elements, but wb.Document.Body seems to capture the HTML before onload is executed. {System.Windows.Forms.HtmlElement} All: {System.Windows.Forms.HtmlElementCollection} CanHaveChildren: true Children: {System.Windows.Forms.HtmlElementCollection} ClientRectangle: {X = 0 Y = 0 Width = 1200 Height = 0} Document: {System.Windows.Forms.HtmlDocument} DomElement: {mshtml.HTMLBodyClass} ElementShim:

Get ReadyState from WebBrowser control without DoEvents

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This has been awnsered many times here and at other sites and its working, but I would like ideas to other ways to: get the ReadyState = Complete after using a navigate or post, without using DoEvents because of all of its cons. I would also note that using the DocumentComplete event woud not help here as I wont be navigating on only one page, but one after another like this. wb.navigate("www.microsoft.com") //dont use DoEvents loop here wb.Document.Body.SetAttribute(textbox1, "login") //dont use DoEvents loop here if (wb.documenttext.contais("text")) //do something The way it is today its

Calling a Javascript function in the C# webBrowser control

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I am using the webBrowser control in C# to load a webpage and need to call a JavaScript function that returns a string value. I got a solution to use the InvokeScript method, and I tried a lot, but everything has failed. Can you specify what failed? My sample below consists of a form with a WebBrowser and a Button. The object called y in the end has the sentence "i did it!". So with me it works. public partial class Form1 : Form { public Form1() { InitializeComponent(); webBrowser1.DocumentText = @"<html><head> <script type='text/javascript'> function doIt() { alert('hello again'); return 'i

Webbrowser Control Limitations

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I am using the WebBrowser control in a windows form C# project and wanted to know if there are any limitations of how many instances of such application you can have running at the same time. (in other words does MSFT enforce any limitations other than physical machine limits - CPU/memory etc) There are no artificial limitations on the WebBrowser control. However, it uses IE's rendering engine (whatever version is installed on the end-user's computer), so it uses a fair bit of memory. What are you trying to do? If you're trying to write a web browser, I recommend that you use a better

How to capture click event for any button inside in web browser control?

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问题 Suppose my web browser is showing a html page where many buttons are there. I just like to know how could I capture click on any button inside web browser control from my c# win apps. If it is possible then from that event i want to capture button name,height and width and any custom property. etc. Please guide me. 回答1: This will be helpful if you want to capture only mouse clicks: WebBrowser _browser; this._browser.DocumentCompleted+=new WebBrowserDocumentCompletedEventHandler(browser

How can I execute Javascript callback function from C# host application

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问题 I'm creating an application in C# that hosts custom web pages for most of the GUI. As the host, I'd like to provide a javascript API so that the embedded web pages can access some of the services provided by the host application. I've been able to get the simple case for this working using the WebBrowser.ObjectForScripting property and implementing a scripting class. This works great for synchronous javascript calls. However, some of the operations that the host provides are long running and

Implement IDispatch::Invoke to be called by a WebBrowser control

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I'm trying to do what they explain on this article in the Controlling Download and Execution section. I understand the Web Browser Control in that context is not .NET's WebBrowser . What I'm trying to do is to gain control over what the WebBrowser control downloads. I've been searching for this a lot and always en up in the csEXWB , which has a huge code that I just cannot decipher. What I've done so far is inherit .NET's WebBrowser , make my inherited class com visible by using the [ComVisible(true)] attribute, add this method to my class (taken from csEXWB): [DispId(HTMLDispIDs.DISPID