Is there any way in VB.NET to remove all of the whitespaces between tags in HTML? Say, I've got this:
<tr>
<td>
The string I've built is an entire HTML document, and it counts everything before those tags as legitimate space, so I need to trim it out. Is there a reg ex or function out there I could use to do this?
I have a web application where the user uses an HTML editor to input some formatted text to show on the website. This text is stored, as HTML, in a database. It turns out now, after some time, that users are sometimes entering whitespace (newlines, spaces, etc) before and/or after the text they are entering, and this whitespace shows up in the rendered text on the page. Multiple sets of this text are displayed top to bottom, and due to this whitespace the separation between bits of text varies, which doesn't look very pretty. So, I've been asked to get rid of the whitespace automatically.
Seemed like an easy task at first, I'd just call Trim on the string. But that won't work, the 'whitespace' when rendered isn't actually whitespace at all, it's a bunch of <br /> or <br> or <br></br> tags, or spaces such as, even empty paragraphs <p></p> sometimes. So calling Trim won't help, I need to get rid of all the tags that would render as whitespace.
The HTML editor control I'm using may or may not have built in support for this, but it doesn't matter, the database is already full with texts that contain these newline tags, so the best option I can see is to simply trim this whitespace before displaying it on the page. [Code]
Is it possible to preserve whitespace inside tags? I am accessing XML nodes (containing XHTML content) in an XPathDocument using a XPathNodeIterator.Some of the tags in the nodes are not "strict" XHTML (and this is allowed in the final output of the tool). Some nodes contain image tags without the trailing space.
<img src="filename.png" alt="description"/>
When i store the resulting nodes they get nicely formatted with the trailing space.
<img src="filename.png" alt="description" />
[Code]...
As a temporary work-around i added a few regular expressions (comparing new and previous versions of the nodes) to search for and fix the "differences" introduced by parsing the XML with .NET
I have a html string like this:[code]I wish to strip all html tags so that the resulting string becomes:From another post here at SO I've come up with this function (which uses the Html Agility Pack):[code]
View 4 RepliesI am developing a site that has some hyperlinks stored within the database. I have moved some pages around so I need to implement redirects and replace URL's displayed on a page with the new paths.I am trying to do this for a Repeater control using the following code.[code]However this code does not execute and the Contains section is not returning true. Can anyone explain to me where I am going wrong and what I should be doing differently?
View 6 RepliesI would like to pass a whitespace character by using the System.Text.Encoding.ASCII.GetBytes(" "), and System.Text.Encoding.Unicode.GetBytes(" ") , where " " is the whitespace Character required. What do I need to type (" ") to get a whitespace character passed.?
View 6 RepliesI know i can get some values by using WebBrowser1.Document.GetElementById("submit")
for <input type="submit" id="submit" />
but i need to get the value between 2 html tags
<strong>id_57<strong>
i need to get
"id_57"
I'm trying to analyze web pages for seo. I'm trying to create my own personal tool to extract all the keywords and tags from web pages (a little clearer).I already know how to extract or parse links and text from web pages. The issue is that I tried to implement title tags, body tags or keyword tags in general via using the following code:
Dim theElementCollection As HtmlElementCollection = WebBrowser1.Document.GetElementsByTagName("a")
For Each curElement As HtmlElement In theElementCollection
If curElement.GetAttribute("href").Contains("http://twitter.com/") Then
[code]....
Try to extract all the keywords from the title, body etc. for this page:[URL] and send it to separate textboxes (title keywords in textbox1, meta tags in textbox2 etc.).
I'm trying to analyze web pages for seo. I'm trying to create my own personal tool to extract all the keywords and tags from web pages (a little clearer).I already know how to extract or parse links and text from web pages. The issue is that I tried to implement title tags, body tags or keyword tags in general via using the following code:[code]
View 1 Repliesi'm trying to get the following data from within the html tages <td class="colRight">CWCH60</td> where CWCH60 is the data which changes and needs to be extracted. I have tried the following Regex patterns
[^td|<|>|/|class|s|^="colRight"][A-Z|a-z|0-9][^</td>]
[^<td][^s][^class][^="colRight">][A-Z|a-z|0-9][^</td>]
[^tdsclass=""colRight">][A-Z][a-z][0-9]
all work fine in an online regex builder/tester but return WCH60 when executed. Why would this occur, is there a simple operator i have missed out?
I am working on getting the valid href link using with the httpwebrequest. I have a bit of trouble of getting the valid tags from the html page. When I selected the listview items and clicked on the button, it have got the valid listview items and connect to a site, but it did not picked the invalid tags from the page.[code]...
View 15 RepliesI need to output "Exceptional Innovation"[code]...
But when I use the top most code I'm lost. Is there something wrong with my code or in the html source?
I need to match everything between HTML tags. I am parsing a table, it would look something like this:
Code:
<table><tr><th>Header1</th><th>Header2</th></tr><tr><td>Name1</td><td>Address1</td></tr><tr><td>Name2</td><td>Address2</td></tr></table>
[Code].....
i'm trying to get some information of a webpage via regex on visual basic 2010
it's something like this:
<SPAN CLASS="clear"></SPAN>
<h2> blabla </h2>
<h2> blabla </h2>
<b> blabla </b>
[Code]...
I have a HTML Page That has some code like below.
<div id="something_1">
<a href="">Hey</a>
<a href="">Hey</a>
[Code]....
My question is, is there a way to get all the "a" references within a certin div i find? For example, If i wanted to loop through all my div's perfect, i can do that now, but when i find a match that is looking for "something_3", then i want to do a loop to process all the "a" refs ONLY in that div's container
I have a HTMLDocument, and in it there are a number of TAGS with a value between them:
[code]...
I was just wondering how to extract or parse any particual tags (whichever I specify) from webpages. I know how to extract text and links from webpages, but I tried to use the same method from the following code for div tags, title tags etcetera and it doesn't seem to work:
[Code]...
In my database MYDB I have a table called MYTABLE and I have a column called Description. I am saving a long description in there with multiple HTML tags.How can i return the values and not include all the HTML tags? Is this even possible? What will be the best way of doing this? In the SQL statement or in code behind? And how will I do it?
View 3 RepliesI am trying to achieve something a bit tricky. I have a web application that displays news bar from an external HTML file. I need to enter text at this HTML tag so as to update the news bar. How can I edit HTML tag/code from VB code at run time. I am using VS 2005. Below is an the HTML file contents. What I need is to change the text "HELLO WORLD" to whatever I want.[code]
View 1 Replieshow to get all html tags from webbrowser and add them to a listbox?
View 1 RepliesI am building text for a tooltip value of a radiobuttonlist. I want to include HTML tags with the text like the <br/> tag. Right now it is just showing the <br/> values in the text for the tooltip.
View 4 RepliesI am developing a small window based program where I want to parse HTML tags from richtextbox. How can I do this?
Details: In my program, richtextbox holds HTML source code. and if it contains <img src="images/image.gif" border="0" alt="alt Text" />
then i want to get string "images/image.gif" . so how can I do this?
I have an website with dynamic text on it, i want to transfer the text to an textbox, and the text is between this tags:
View 11 RepliesI was just trying to play around with reading websites and have the following Quote:
[Code]...
I want to get tags content in a string with regular expression. I wrote it for just one line. When the content changed into some lines from one line, Regex will never do pattern on the tag. I choose RegexOptions.Multiline + RegexOptions.Singleline for finding options.My pattern in low level: (>)[ a-z A-z 0-9 ]*(</)
View 2 RepliesAfter starting a new project for easy "Templates" I am wondering on how I can preview the template.
Here's my situation. I have a form with 2 richtextboxes. One for editing, one for previewing. This application is basically for HTML. For example, bold in HTML is <strong></strong>. If the user types the tags with text in between these tags, I want them to be able to preview this text in bold (assuming the tags are <strong></strong>.)
I'm not sure how I can preview it. Lets say the user types this phrase in the RichTextBox1:
<strong>Hi World!</strong>
I want the preview to show Hi World! because I put bold tags around the phrase "Hi World!". The reason why I need the textbox to use tags is because this application's purpose is to simplify work with HTML by allowing the user to "see" and preview what they are writing.
Here is what I have to insert text by click of a button. (Works perfectly)
Private Sub InsertBold(ByVal selection As String)
RichTextBox1.SelectedText = selection
End Sub
[Code]....
This page here has a table I need to parse.
It has multiple tags like this:
<td style="text-align: center;"><img src="http://www.pkmdb.com/res/icons/001.png" alt="Pokemon" /></td>
<td style="text-align: center;">001</td> <td style="text-align: center;"><a href="http://www.pkmdb.com/DL/PKM/bulbasaur.pkm">Bulbasaur</a></td> <td style="text-align: center;"><img src="http://www.pkmdb.com/res/types/grass.png" alt="Type" /></td>Different Number, different name. I need a way to get the number and name out of these tags. I'm rather terrible at this, and I've seen examples on the site, I just don't know where to start really on this.
My code i want to display in a textbox
<a href="http://www.erate.co.za/CompanyProfile.aspx?ID=112">
<img src="http://www.erate.co.za/CompanyAdd.bmp" alt="Go rate us on www.eRate.co.za"
border="0" style="width: 136px; height: 88px" /></a>
But i get the ID from a Reader like this
reader.Item("ID").ToString
Now i want to set txtCode.text to this but it does not work
txtCode.Text = "<a href="http://www.erate.co.za/CompanyProfile.aspx?ID=" +
reader.Item("ID").ToString + ">
<img src="http://www.erate.co.za/CompanyAdd.bmp" alt="Go rate us on www.eRate.co.za"
border="0" style="width: 136px; height: 88px" /></a>"
How would i do this?
Basically I was wondering if anybody knows how to make Visual Basic change automatically what is in
<span id="total_quantity">1</span>
change what is between > and < (for example a digit or text).
Below is the part of code which I was working right now. Here what i am doing is checking whether the string is from header or div using [code] but i dont need this hard code.Can u provide me any alternative to this code. [code]
View 1 Replies