C# - Check Text For HTML With Regular Expression?
Nov 23, 2010
This is slightly different to most questions regarding HTML tags in strings - I want to add HTML!
I'm using a WYSIWYG editor which produces some eratic results. What im looking to do is to check the string it produces and check whether there are any sentences that aren't wrapped in a <p></p> tag. Typical strings could be:
Example 1
<p>Hello, this is string 1</p>
But string two doesnt appear to be in a <p> tag.
Example 2
None of this text is in <p> tags.
Example 3
Single line of text, again not in a <p> tag.
Could this be done using a regular expression?
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Nov 17, 2010
how can i check the regular expression for the following? the string should only contain this
0-9
a-z
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! # $ % < > ( ) * + - _ ,.;:/ += [] @
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Aug 27, 2010
Is there a way to check a textbox by using a regular expression without using the <asp:RegularExpressionValidator> ? I have a few buttons on my page, and any onclick is causing the regular expression to execute. I want it to work only for the final submission button. Can I check with C#?
[Code]....
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Aug 17, 2010
The following reguular expression doesn't trigger a message if a user only puts in just spaces. It will trigger if a person starts with a space and puts in another character. How can I modifiy it?
[Code]....
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May 1, 2010
i have a textbox in my web form and i want to input any word with any character. so, only i want to check length of textbox less than 200 character. how can i do it with regular expression? and if i want to block some character how can i do it?
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Sep 20, 2010
i have to check if an input string is valid based on the given regular expression.. this is the regular expression.
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Aug 22, 2010
Here is the kind of text I want to match via a regular Expression
The id="dgSchedule" is always present in the TAG but its location may differ
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I have the regular expression to match the start and end tag respectively over a single line
[Code]....
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Jun 9, 2010
There may be an easier way, and if there is I'm all for it. However - my ASP.NET page has a TON of controls on it, and I've given them all ID's that start with underscore. I copied all the markup into Notepad++ and I'm trying to find a regular expression that will find everything but the controls and replace it with whitespace. that way I'll have a text file that has all my control names which I'll probably throw into Excel and do some string manipulation to add ".Text = " etc.
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Oct 7, 2010
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Oct 29, 2010
I was doing some web scraping and i was looking for some div elements with particular class names and markup. This is my objective , i have to extract everything within the div having the class s_specs_box s_box_4 Could someone provide the regular expression in .NET terms (i.e., which can be straight away passed into Regex's constructor)to match one such div (given below)
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Nov 11, 2010
This is my code.
Code:
[code]....
How can I fetch the values of each input from the attached HTML using regular expression in c#?
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Mar 15, 2010
I have the following string:
<div id="mydiv">This is a "div" with quotation marks</div>
I want to use regular expressions to return the following:
<div id='mydiv'>This is a "div" with quotation marks</div>
Notice how the id attribute in the div is now surrounded by apostrophes?
How can I do this with a regular expression?
Edit: I'm not looking for a magic bullet to handle every edge case in every situation. We should all be weary of using regex to parse HTML but, in this particular case and for my particular need, regex IS the solution.
Edit #2: Jens Ameskamp helped to find a solution for me but anyone randomly coming to this page should think long and very hard about using this solution. In my case it works because I am very confident of the type of strings that I'll be dealing with. I know the dangers and the risks and make sure you do to. If you're not sure if you know then it probably indicates that you don't know and shouldn't use this method.
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Jan 21, 2010
i have a textbox with a default text - 'Email *'
am validating this with the regular expression validation with email expression
i would like know to how can i get the regular expression to accept the 'Email *' and not
accept the wrong email format ,
this thread is similar to mine [URL]
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Jan 12, 2011
I need to validate the text box at server side by using regular exp which should accept 1 or 2 or 3 or 4 or 5 digits numbers .Need to restrict decimal part.
Ex: 1 or 23 or 455 or 5643 or 45667 --Should accept.
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Jun 18, 2010
Im trying to make some BBCode-translation from textarea, but im stuck on translate list to html. I have this fo Bold text:
[Code]....
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[Code]....
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Feb 16, 2010
I'm trying to use the validator to work on a email form to ensure that they enter a valid from email address. That part works. I also want to add to the expression the text that I pre-populate in the txtbox ("Enter your email address") so on postback, after sending the message, I can clear the fields and repopulate that box.
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Feb 2, 2011
I am using Regular Expression validator for a text box. The below is working fine.It is not performing validation when I enter values like 0000..001.How can I modify validation expression? But it would allow values like 100,...5000 i.e zeros after a number.
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Dec 31, 2010
I using RangeValidator (0-10)gularExpressionValidator for text box ,Iam using regx for validate numeric characters
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i want to fire both validators seperatly
Here is my code
[code]...
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Dec 1, 2010
I need some help in regular expression.I am validating the textbox text when updating the records.When i click the update button,the first 5 letters should be equal to CM000 or cm000.How to validate this using regular expression in asp.net. does anyone know validationexpression for this.
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Oct 4, 2010
I need a regular expression for support both date formats dd-MMM-yyyy and dd-MMM.
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May 11, 2010
Regex rxQuarter = new Regex("d{5}"); why i get a error when i use this regular expression..its not recognising the "d"
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Nov 19, 2010
I would like to know what the expression for "letters only" is for my asp.net web application. I tried ^[A-Za-z] but it does not work I would also like a regular expression for "numbers only except "-"
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Apr 21, 2010
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(http(s)?://)?([w-]+.)+[w-]+(/[w- ;,./?%&=]*)?
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Oct 27, 2010
I have the following:
[Code]....
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