Our Silverlight application needs to show to the user previews of HTML pages it generates dynamically, so we want to use the WebBrowser to show these pages. The problem is that the HTML contains links to other local files such as images, flash objects, CSS and javascript files. The CSS and javascript could be placed inline in the HTML, but I haven't found a way to embed images. Something simple like this just doesn't work:
Creating the HTML file and the image file in the isolated storage is doable, but I can't get the path to the created HTML file to pass on to WebBrowser.Navigate(uri).
Reading the contents of the HTML file and calling WebBrowser.NavigateToString(string) will show the page, but not any linked images or scripts.
Linking to online sources is not an option as the application needs to work offline (i.e. out of browser) and performance would be much better if the images and flash objects were able to be cached locally.
So, is there any way in Silverlight of showing in the WebBrowser control a local HTML file that contains an image from the local file system, or is it impossible?
Thanks, sandeep agrawal
The only way to make that work is to make the Silverlight an OOB application, and then you can still only access the My* folders.
I heard that someone wrote a browser control that can be used without going OOB but not sure about that. This is a real pain, but a necessary one I guess.
Related
I have a webform with and want to open it on smartphone - than take pictures of some documents which need to be merged in one PDF, and on the end this file need to be uploaded to server.
My solution is to use Google Drive to upload PDF (scan) to GDrive and then somehow download this file from gdrive to server via some sort of widget (any links appreciate) installed on website.
Maybe someone have a better idea?
I know its late but my answer might help others. I also face the same challenge and implemented a custom solution based on Javascript and Since you are using web form so this solution will perfectly fits on your need.
You have to use JSPdf javascript library, JSPdf provide you pdf object in your browser and you can upload it download it and there are many other thing to play with.
First you have to initialize JSPdf object as per your requirement. I am creating PDF with page size width:500px and height 500px.
pdf = new jsPDF("l", "pt", [500,500]);
Simply when you will take picture from camera you will have each picture in form of base64, that base64 format you have to insert in JSPdf object
pdf.addImage(imgData, 'JPEG', 0, 0);
you can repeat the above code to add pictures from camera as much as you want, at the back-end these images are compiling and creating pdf document where each page have each images in sequence.
Once you are done, you can get PDF object in form of base64 object using below code that you can upload to any server.
pdf.output('datauristring')
above is only pdf part, you can find complete working example including camera part here Javascript Component to Scan Document
I built in vb.net one webserver from this how-to: http://www.java2s.com/Tutorial/VB/0400__Socket-Network/TcpListenerbasedWebserver.htm
The code works fine reads the html but I can not understand why not showing images. Any suggestion?
Downloading the HTML of a webpage will absolutely never download any kind of secondary elements/files, including images.
In order to get the images, you'll need to get the images URL and download them separately.
Im struggling with a thought here. Let's say a user has his own CMS where he can fill the content for our app. One of his options is to create a view by uploading images and typing text. Well keep it very simple and imagine he only uploads a image (320 x 20) and some text. So an image on top and some textlines below.
What would be the best way to let my app know of this layout and download the contents? I was thinking of a downloadable XML file which defines the layout but don't really know how to implement this or if its even the best way.
Oh and the content and layout must be downloadable for offline use too.
Another option what I was thinking of is showing the layout in a webview but I can't figure out how to download the mobile website for offline use.
A push in the right direction would be appreciated!
We use a custom XML and it is working good. All texts inside 'label tags' are in XHTML
remember to:
be specific when defining the xml to save some effort
write a limiting XSD! So nothing 'surprising' creeps into the xml
remember not include everything in ONE xml file as that would get rather large rather quickly. Choose a scheme for portioning the XML
I'm evaluating Fine Uploader compared to various other options, specifically JQuery File Upload.
I generally prefer the Fine Uploader approach as it's more lightweight, compared to JQuery File Uploader which has dependencies on Bootstrap and JQuery UI.
However it's important to be able to resize images: e.g., a user may select a large file from their camera and this may be very large - uploading the full resolution photo may take a very long time. JQuery File Upload doe this.
Additionally we don't have much use for very high resolution files.
If possible (I'm aware some browsers may not support this), I'd like to be able to resize images client size.
Is this possible?
Fine Uploader does not currently have any native support for image manipulation. This is a feature in our backlog, but we have not had many users tell us they are interested in this. This is one of the reasons why such a feature has yet to be implemented natively. There is a case, #707 that marks the start of native image-editing support for Fine Uploader. It is tentatively scheduled for 4.0.
However, you can certainly make use of FileReader and Canvas to resize the image. You can then submit this resized image as a Blob to Fine Uploader via the addFiles API method. At that point, the file has been submitted and Fine Uploader is ready to upload the item.
Essentially, the steps you would follow to handle this specific scenario, before Fine Uploader natively supports image manipulation:
Provide your own file input element(s) or make use of Fine Uploader's file/folder drag and drop support to get a handle on some files selected by the user.
Use FileReader to read the contents of the image.
FileReader will provide you with a URL for the image, assign that to the src attribute of an img element.
Draw the img onto a canvas element. This is where the resizing occurs.
Grab the URL of the resized image from the canvas element (canvas.toDataURL(...)).
Convert the URL to a Blob.
Pass the Blob to the addFiles API method of Fine Uploader.
The intent is to take care of most if not all of this for integrators such as yourself in the future by adding native image manipulation support to Fine Uploader.
Hope this helps.
We happened to get requirement to upload the multiple files ( like the gmail attachments ) using struts 1.3.5 and Ajax.
I happened to go thorough lot of resources but no luck.
Can someone shed light on this possibly by suggesting or pointing to some useful resources.
I was also looking for a multiple file upload solution for my struts2 application. Since ajax form submit do not support image submission the only option to use was a hidden iframe strategy. However, i found this wonderful plugin which uploads multiple files withour reloading the page and also shows a cool progress bar. The best thing about this plugin is that it doesn't uses flash and works on IE too. I strongly recommend using this plugin
Donot use taglibrary defined file upload for uploading. You can still use
common- fileupload to handle file upload. By doing this you can dynamically
add one more input type file element below the current input type upload using
javascript. I doubt if there is any way to do this using pure struts 1.3.5 :) .