Web Forms :: Regular Expression To Replace All Special Characters?

Jan 18, 2010

I am trying to write a regular expression to replace all special chracters within a string so that I am left with just alphanumeric characters and spaces or full stops.

I am using this expression at the moment

[Code]....

But then I test this with the string "This is a test!", it returns "Thisis a test", which would be fine, except for the space it removes between "This" and "is", can anyone else me where I am going wrong or supply a better expression?

View 3 Replies


Similar Messages:

Web Forms :: Regular Expression Validator For Not Accepting Special Characters And Space

Apr 5, 2012

Regular expression validator  for not acception special characters and space.

View 1 Replies

Web Forms :: Construct A Regular Expression For The Password Textbox Which Shouldn't Accept Special Characters

Sep 16, 2010

I need to construct a regular expression for the password textbox which shouldn't accept special characters($,@,!,etc).Even whitespaces,tabs. I tried the below this accepts special characters.

<asp:RegularExpressionValidator ID="RegEx" runat="server" ControlToValidate="Password"
ErrorMessage="Password must be atleast 8 characters and include a number,alphabets upper case and lower case.
"ToolTip="Password format is not correct"
ValidationExpression="^(?=.{8})(?=.*d)(?=.*[a-z])(?=.*[A-Z]).*$">
</asp:RegularExpressionValidator>

View 3 Replies

Regular Expression (C#) Remove All The Special Characters (leaving Only Numbers) In A Phone Textbox?

Mar 8, 2010

I'm wanting to remove all the special characters (leaving only numbers) in a phone textbox. Here is my current code:

Regex.Replace("(123)456-7890", "[\(\)\-\.+]", "");

View 2 Replies

VS 2010 - Replace Special XML Characters

Oct 27, 2011

I have to replace XML characters that are being sent to me like this:

Private Balcony & Patios w/Storageto instead be this:
Private Balcony & Patios w/Storage

I want to make sure I have an exhaustive list of all possible characters, so we don't find one later after my programming change.

I was told to do these (by a developer at the client site who is passing me the xml as he gets it from the database and wants me to parse it):

replace all "&" to "&" as well as any of other 3 reserved characters:

">" to "<"
"<" to ">" and
"%" to "%"

But when I googled more infor on XML special characters, I found this list:

& &
< <
> >
" "
' '

Which says nothing about the % but mentions the quote and apostrophe.

So what is the exhaustive list?

View 9 Replies

Web Forms :: Regarding Regular Expression & Replace?

Mar 23, 2010

i want to find and replace img src path by regular expression.suppose i have the below html and from there i want to replace file path of all the src attribute of image tag.

<P>Hello</P>
<P> </P>
<P><IMG alt="C:\Documents and Settings\All Users\Documents\My Pictures\Sample Pictures\Sunset.jpg" src="C:\Documents and Settings\All Users\Documents\My Pictures\Sample Pictures\Sunset.jpg"></P>

here the file path is src="C:\Documents and Settings\All Users\Documents\My Pictures\Sample Pictures\Sunset.jpg"

and i want to replace it with path like src="www.mysite.com/images/a.gif" with regular expression.how can i do it with regular expression.

View 6 Replies

Regular Expression To Avoid Space And Special Character?

Oct 1, 2010

I would like to have an regular expression that does not allow any spaces(before,within,after the word) and alphanumeric characters.

View 3 Replies

Regular 'Replace' Expression For Phone Number?

Apr 23, 2010

I need regular expression for splitting the phone number into two parts

for example: if I pass 1234567890 or 123-456-7890

View 2 Replies

Web Forms :: Regular Expression To Validate Repeated Subset Characters In A Password?

Aug 9, 2010

I'm using RegularExpressionValidator controls to impose password rules when creating new passwords. I want to avoid repeatitons such as 'aaaa' or sequences such as '12345' in the password.

How do I write the validationexpression to a RegularExpressionValidator to impose this rule? I do not want to do thing using C#, just with a regular expression that could be put within the validator control like below:

<asp:RegularExpressionValidator
ID="RegularExpressionValidator3"
runat="server"
ErrorMessage="Password
should contain Minimum 8 Characters"
ControlToValidate="txtPwd"
ValidationExpression="w{8,30}"><asp:RegularExpressionValidator>

View 7 Replies

Regular Expression For Characters With The Space?

Apr 8, 2010

What is a good regular expression that will allow only characters with the space?

View 5 Replies

Regular Expression Allowing All Characters?

Jan 20, 2010

I need a regular expression on a RegularExpressionValidator that just checks if the minimum length is 3 characters, it doesnt matter what characters are typed in...

View 3 Replies

Regular Expression - How To Remove Characters Except For Last Ones

Jul 31, 2010

I am looking a regular expression that will remove all of the text except for the charachters that comes after the last "-" character. in this way I can get the ID for a URL.

[URL] so that after the regular expression will be exutes I will have "t43g2g" ID.

View 10 Replies

C# - Filtering Out Bad Characters Using A Regular Expression?

Sep 3, 2010

I have a string which has to be matching @"^[w*$][ws-$]*((d{1,})){0,1}$". If it doesn't match this regex i want the characters that do not match to be deleted from the string. How can i set this up?

View 2 Replies

C# - Regular Expression To Replace Quotation Marks In HTML Tags Only?

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.

View 2 Replies

C# - Regular Expression To Remove Consecutive Characters?

Mar 23, 2011

Need a regular expression to replace the following sequence

Before : abbbccdd After : abcd

And also if numeric data is present instead of alphabets i would like to remove the duplicates and display

View 2 Replies

Regular Expression To Test For The Number Of Any Characters In A Range?

Mar 3, 2010

I'm using the ASP Validation control a wanted to test that multiline textbox content was between 2 and 40 characters. Any character can be provided, including the new line character. What would be the expression? What I have below fails.

[code]...

View 2 Replies

Regular Expression / Input String Is Valid Based On The Given Regular Expression?

Sep 20, 2010

i have to check if an input string is valid based on the given regular expression.. this is the regular expression.

(a(bb+aaa+((ab)*bb+(aba)*aa)(a+b)*) + (b(aa+bbb+((ba)*aa+(bab)*bb)(a+b)*)

+ is an OR

* is a LOOP, it is optional, it may be done as many as a user wants.

i've tried many ways to solve the problem that my professor gave me but my knowledge isn't that enough to solve this problem..

View 3 Replies

Web Forms :: Regular Expression Validator / Add Wording To Current Expression:  W+([-+.']w+)*@w+([-.]w+)*.w+([-.]w+)*?

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.

How do I add that wording to the current expression: w+([-+.']w+)*@w+([-.]w+)*.w+([-.]w+)*

View 4 Replies

Web Forms :: Validation Expression For Regular Expression Validator?

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.

<asp:RegularExpressionValidator ID="reg2" runat="server" ControlToValidate="rng2"
ValidationExpression="^[0-9]+" ErrorMessage="*Please Enter a Valid Number for Second Range."
ForeColor="Red" Font-Bold="True"></asp:RegularExpressionValidator>

View 2 Replies

Web Forms :: Can Replace Special HTML Character

Feb 22, 2011

I receive data from a database that contain character such as '&', 'é', 'è', ... In the page, they corectly shown, but when I want them in a textbox, they appear like "&", é" ...

is there a way I can make them appear correctly?

View 2 Replies

Web Forms :: How To Replace Special Character With Line Break

Jul 15, 2010

I have some data with delimited by "~" character. Now I want to display this data in multline textbox and replace "~" with line break, Let me know How can I do this?

View 4 Replies

Web Forms :: How To Interpret Special Characters

Mar 15, 2010

I have some special characters in my database and i would like to retrieve the same. eg: "FrédÃ" is not displaying properly on my list but it is stored correctly in database.

View 2 Replies

Web Forms :: Dont Get The Special Characters In Particular Way

Jan 31, 2011

I'm having an issue when requesting querystring variables in a ASP.NET C# webapplication. With special characters.I dont get the special characters in the way i want(original).Here is the code I'm playing with:
string todo = Convert.ToString(Request.QueryString["todo"]) ?? ""; string str = Convert.ToString("%E6%F8%E5%3Ftest"); Response.Write("str original=" + str); Encoding enc = Encoding.GetEncoding("ISO-8859-1"); Response.Write("<br />str decoded=" + HttpUtility.UrlDecode(str, enc)); Response.Write("<br />todo querystring=" + todo); Response.Write("<br />todo querystring decoded=" + HttpUtility.UrlDecode(todo, enc)); string t = HttpContext.Current.Request.Url.AbsoluteUri; Response.Write("<br />requested url=" + t); string[] test = t.Split('?'); foreach (string

View 7 Replies

Web Forms :: How To Split A String Using 2 Special Characters

Sep 21, 2010

I am retrieving time data from database.Its in format of HRS:Min AM. (:,'')are the special charatcters. I need to show Hrs in txtHrs,Min in txtMin,Am/PM in dropdown. How can I do this?

View 6 Replies

Web Forms :: Avoid Xml Break Due To Special Characters?

Apr 15, 2010

I have issue with special characters. I would like to know how to write condition to avoid this xml break due to special characters. I need to set condition to accept only 256 ascii characters in textbox and all other should be replace with "#".

View 3 Replies







Copyrights 2005-15 www.BigResource.com, All rights reserved