I want to check in c# if an html document is "visibly empty". Checking InnerHtml is not enough, because the HTML could contain an image or an empty table.
Are there any efficent ways to check a HTML document if there is anything, that translate to something that is not a whitespace?
The complicated way i'm thinking of is removing every html/body/p/br Tag, whitespaces and nbsp items, and checking if anything is left
Related
How would i show the output as HTML. I have tried HTML Decode and it still didn't work.
#section Grid {
#Server.HtmlDecode(lister.gen(new System.IO.StreamReader(Server.MapPath("~/Grid.xml")).ReadToEnd()))
}
Edit: I am taking XML from output.InnerXml (A XMLDocument) and trying to put it into a HTML Document as HTML (As in <a> is a link and <img> is a picture and not Text)
It turns out I had to add #Html.Raw along with HtmlDecode for it to display correctly
#Html.Raw(Server.HtmlDecode(lister.gen(new System.IO.StreamReader(Server.MapPath("~/Grid.xml")).ReadToEnd())))
If you want to show the HTML in an HTML page, you need to use HTML encode, not decode. This will put the proper tags in to turn < and > (and other HTML elements.
ADDED due to comment:
If showing XML AS HTML is the goal, then you will end up extracting the XML, from the DOM and putting it into the format you desire. You can bind XML to a table if you are simply trying to get it into a grid. If you need sorting, etc, LINQ to XML works nicely.
ADDED - second edit
Your XML appears to be XHTML, so you can simply throw it into the stream at the correct location. I would create a server control and then Response.Write the XML from the server control. You will want the decoded version based on what you posted. I was assuming you wanted to show the XML in the page, which was incorrect.
There is one minor bit of an issue with the XML, as it contains paragraph and div tags inside of an anchor tag. Not illegal, but not necessary in this case.
I'm making a detail page about certain items.
This detail page can contain large blocks of text, and the customer would like to only show the first 100 letters and then put a " ... more " at the end.
When the user clicks this " ... more " the rest of the text can be shown.
Biggest problem: the text is currently is a CMS and has large varieties. Some is pure text, some have html elements in them ...
I tried to cut off the text and put them in spans. Then i could show/hide these spans as i please. The issue here is that there can be a starting element of a certain tag in the first span and the closing element can be in the second span. This causes the DOM hierarchyto be faulty and the result is never pretty.
Does anyone know a ( other ) way to achieve this or a library i can use ?
To be able to extract "readable" characters you need to get the content into a plain text format (get rid of the mark-up).
Since the content is stored in a cms it is likely that the content is structured to be well formed - thus xhtml.
If that is the case you can treat the content as XML. Get the root node and get the innertext property there-of. Then you will have plain text - no tags - and can easily cut it after the first 100 characters or whatever the requirement is.
Hopefully the content doesn't contain js/css!
Edit:
It seems that the markup must be retained.
Try the following xsl to transform and truncate the content:
https://gist.github.com/allen/65817
Need some HTML code for Escape characters that accepts and do its functionality in a TextBlock.
For Example:
for \n
My requirement is, I have a XML file which holds a field named Memo and it need to hold some text like in the below image
For CCJS, i need a tab to make it center. like wise the rest of text to be aligned.
XML tag:
memo="\tCCJS
\t==========
If the "CCJS" field is customized on the General Occurrence screen, then the same custamization should be made to the "CCJS Status" field on the conclusion block."
Above given is just for an example, I have more text like these so i need some set of HTML code to have all these Text accepted in xml and Textblock
I have gone through Here.. Still i dont found code for Tab. if i would get a full list of these codes, it would be helpful..
Thanks.
I've always just used the Line Feed character (which will work in xaml and is html encoded, it's also already included your example)
Dec. =
Hex. =
As example;
<TextBlock Text="Line One
Line Two"/>
Hope this helps.
PS - for your tabs, just get your spacing correct and utilize Preserve Whitespace / xml:space="preserve"
I have successfully generated a word document file using open XML, but I have got too many blank pages,
how can i remove them ?
This depends on how those blank pages are represented in the Open XML; you may want to post a sample document to demonstrate exactly how your blank pages are represented.
But let's take the case of a Word document in which a user has inserted extra page breaks (by hitting ctrl-enter in Word), resulting in blank pages. These page breaks will be represented in the XML as:
<w:br w:type="page"/>
The page will still have plenty of tags in it for spacing, fonts, etc.; and the page may display header and footers, too. But let's define a blank page as one which has no new paragraph text. In Open XML, new text is displayed with a w:t tag.
So, in order to remove blank pages created by extra page breaks with no text in between, we can run the following regular expression on the XML document, replacing with blank (""):
<w:br w:type="page"/>(.(?!<w:t>))*(?=<w:br w:type="page"/>)
This regex will search for a series of two or more page breaks with no new text in between, removing all but the last one.
(Note that this won't take care of blank pages at the end of the document, which is a bit trickier. Additionally, if you'd like to account for pages with images, textboxes, etc., the regex will have to be expanded to include the relevant items).
After scrubbing my field with AntiXss.HtmlEncode is there a way to remove all the html elements because they still show up as literals in the display?
No, there isn't. If you want to remove HTML elements and then HtmlEncode the result, you have to actually parse the code and remove the elements.
You can use the HTML Agility Pack or any other HTML parser to parse the content, get the InnerText of the root element (this will be only the text of the content) and then call AntiXss.HtmlEncode on that result.