I'd like to know if it possible to show HTML page created in VB using WebBrowser object without using files on disk.
That is, create HTML file in memory and show it within WebBrowser object.
Thanks!
Using Visual Basic in .Net Framework...
webBrowser1.DocumentText = "<html><body><a href='http://www.mywebsite.com'>My Web Site</a></body></html>"
In old Visual Basic 6, try...
WebBrowser1.Document.Open
WebBrowser1.Document.Write "<html><body><a href='http://www.mywebsite.com'>My Web Site</a></body></html>"
WebBrowser1.Document.Close
First wait for the DocumentComplete event (navigate to about:blank if you start from scratch), then use the document's IPersistMoniker (recommended if you want to provide a base url) or IPersistStreamInit interface to load HTML content.
You can find an example (the LoadHtmlIntoBrowser method) in the csexwb project.
Well, I've found the solution. It's not so complicated.
The solution is to run from the VB:
*
WebBrowserObject.Navigate "about:HTML TEXT"
It works, I've checked it.
Related
I am trying to open HTML file from the local URI which I use as XML Editor, to edit xml data that come from Silverlight application, then close browser window and return back edited xml data to the Silverlight application.
I tried to use HtmlPage.Window.Navigate but I don't quit like it.
I have tried using a method from: http://weblogs.asp.net/dwahlin/archive/2010/05/10/integrating-html-into-silverlight-applications.aspx
but instanly got an exception "failed to invoke ShowJobPlanIFrame"
Is there any way to handle this task?
"Out of browser" mode doesn't fit.
Thanks.
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Update:
It worked out using IFrame overlay.
Button click invokes the following code in C#:
var scriptObject = (ScriptObject)HtmlPage.Window.GetProperty("ShowJobPlanIFrame");
scriptObject.InvokeSelf(url);
Where "ShowJobPlanIFrame" is as defined at:
http://weblogs.asp.net/dwahlin/archive/2010/05/10/integrating-html-into-silverlight-applications.aspx
This allowed me to pass data into XML editor and then get it back.
An error with JavaScript function invocation I told above, was my fault in JavaScript code itself.
A very similar scenario: https://stackoverflow.com/a/7919065/384316
Try using an iframe overlay, then you can load any HTML-like content.
There is an excellent explanation of how to do this here:
http://www.wintellect.com/cs/blogs/jlikness/archive/2010/09/19/hosting-html-in-silverlight-not-out-of-browser.aspx
It worked out using IFrame overlay.
Button click invokes the following code in C#:
var scriptObject = (ScriptObject)HtmlPage.Window.GetProperty("ShowJobPlanIFrame");
scriptObject.InvokeSelf(url);
Where "ShowJobPlanIFrame" is as defined at:
http://weblogs.asp.net/dwahlin/archive/2010/05/10/integrating-html-into-silverlight-applications.aspx
This allowed me to pass data into XML editor and then get it back.
An error with JavaScript function invocation I told above, was my fault in JavaScript code itself.
Did you try NavigationFramework of Silverlight? It's capability may support your needs in a more simple way than using multiple browser pages.
I'm designing a Windows 8 Reader App, and I have to use a control to show the HTML content, which is fetched from some website feeds. Cause those HTML content may contains images or some other formatted text, now I'm using a richtextblock to show the HTML content, but it costs a lot of time to parse the HTML content.
So I'm wondering if there is any controls that can handle the HTML content except the WebView.
Thanks.
Updated:
The reason I can't use WebView is that I need to implement pagination, like the image belowed:
As JP Alioto mentioned you should use the WebView control.
You can use the NavigateToString method to load the HTML. Or use Navigate to request a URI.
There are issues however with using the WebView control, specifically it is rendered differently and is not a standard control, this means things like your app bar or settings pane will not render on top of the WebView, there is a workaround by using the WebViewBrush to "paint" the WebView to standard control such as a rectangle when needed.
Also you can make a screenshot of the webpage you want to display. But to make a screenshot of webpage it's also not easy to do, but I offer you to make it with some special sites wich are created to take screenshot of other websites. Then you can download an image this sites return and open and display it in your windows 8 app. I show You some example how to I did that:
StorageFolder screens = await Windows.ApplicationModel.Package.Current.InstalledLocation.CreateFolderAsync(#"Screens\" + folderName, CreationCollisionOption.GenerateUniqueName);
var downloader = new BackgroundDownloader();
IStorageFile file = await screens.CreateFileAsync(fname, CreationCollisionOption.GenerateUniqueName);
string my_uri = "http://api.snapito.com/web/e3c351d5994134eb1aea855ce78e296c3292d48a/lc/" + url + "?type=jpeg";
DownloadOperation download = downloader.CreateDownload(new System.Uri(my_uri), file);
await download.StartAsync();
I think there are only two options but none of them are really good:
Use WebView and transform your HTML with CSS and other techniques to look native. Use the ScriptNotify and NavigationStarting and other events to navigate to another page. In W8.1 the WebView is much better (eg. treated as regular control not floating over all other controls,...)
Parse your HTML and generate native elements. I started such an implementation and created a XAML control to display HTML with native controls (see https://mytoolkit.codeplex.com/wikipage?title=HtmlTextBlock). However if you have complex HTML (eg iframes, etc.) this may not work and you have no other choice than to use the WebView control.
I want to implement a help system for my tiny SWT desktop application.
I've thought about a SWT browser widget containing a single html markup page and a set of anchors to navigate (there are only very few things to explain).
Everything works fine, but how do I load the html file from a jar?
I know aboutgetClass().getClassLoader().getResourceAsStream("foo");, but what is the best practice when reading from the input stream? The answer to Load a resource contained in a jar dissuades using a FileInputStream.
Thanks in advance
Well, I found a rather simple solution that obviously just works:
InputStream in = getClass().getClassLoader().getResourceAsStream("html/index.html");
Scanner scanner = new Scanner(in);
StringBuffer buffer = new StringBuffer();
while(scanner.hasNextLine()) {
buffer.append(scanner.nextLine());
}
browser.setText(buffer.toString());
i tend to use commons-io for such a task giving me simple abstraction methods like IOUtils.toString(InputStream in); and leaving the choice of best implementations to the able people at apache ;)
commons-io: http://commons.apache.org/io/
apidocs: http://commons.apache.org/io/api-release/index.html
The VB.Net desktop app uses the IE browser control to navigate the web. When a normal page loads the document_complete event fires and I can read the resulting page and go from there. The issue I am having is that the page I am driving is written with AJAX, so the document complete event never fires. Furthermore, when you view the source of the page after it loaded a new portion via AJAX, it hasn't change. How are people handling this? What are my options?
This solution might solve your problem.
prerequists:
AxwebBrowser control,
reference to mshtml.dll
Dim axmshtml As mshtml.HTMLDocument = YourAxWebBrowserControl.Document
Dim HTMLSource As String = axmshtml.body.innerHTML 'html source, including DOM changes
If you know what you are looking for you can put the above code in a timer/loop
and simply monitor the page source for changes.
If wb is your webbrowser control, then instead of getting the HTML by using:
wb.DocumentText
use:
wb.Document.Body.InnerHtml
This will give you the updated html, reflecting the AJAX update.
As to detecting when the AJAX completes, for me it seems to be triggering a DocumentCompleted event. Not sure why it's different for you.
You need to interact with the Javascript code in the website using the methods on HtmlDocument.
I have seen this kind of behavior with C# when some AJAX scripts created a race condition. Adding the defer attribute to the script tag helped in that case. YMMV.
Not sure if this will work.
When the Ajax call completes, add a random anchor hash to the URL like so: foo.html#23234
then add your code to the NavigateComplete2 event.
http://msdn.microsoft.com/en-us/library/aa768334%28VS.85%29.aspx
I'm guessing that the page your load in your windows app does an AJAX call, which appears to refresh the page. In that case, the document_complete event isn't fired, because the webpage itself isn't refreshed, but a portion of the page.
I found a similar question about this problem, with an accepted answer in VB.Net.
You can use the ProgressChanged event, it seems to fire during ajax calls
I have been looking into CruiseControl configuration recently (I'm a complete CC noob) and so far I understand that various XML reports generated by your build process (eg mbunit.xml, ncover.xml, fxcop.xml) can be shown in the dashboard by adding a reference to the xml to the following part of the ccnet.config:
<publishers>
<merge>
<files>
<file>logs\some-report.xml</file>
</files>
</merge>
</publish>
adding an xsl file to transform the xml into presentable html and adding a report build plugin to dashboard.config which references the xsl:
<xslReportBuildPlugin description="Some report"
actionName="SomeReportAction" xslFileName="xsl\some-report.xsl" />
My question is: if I have some reports (code documentation generated by JGregory's Docu and test specs generated by jpboodhoo's Bdddoc) which are pure HTML, is there any way I can show these in the dashboard in a similar way? I can't figure this out. I did think of adding an ExternalLink directly to the HTML page, but this is in a protected area which users normally cant access. Anyone any ideas?
Currently this is not possible in CruiseControl.NET up to version 1.4.4. However this functionality is being added as part of version 1.5.0.
We can't give you a timeframe on the release yet, but you can download and try out the latest version from http://ccnetlive.thoughtworks.com/CCNet-builds/1.5.0/.
Craig
As craig already mentioned this functionality was added in CCNet 1.5, you'll find the documentation about the HtmlPlugin here: http://cruisecontrolnet.org/projects/ccnet/wiki/HtmlReportPlugin