Regex - Textbox That Accepts All The Characters But Returns Only Numbers

Aug 1, 2011

I need the code to filter the data entered in a textbox. Although it accepts all the characters during runtime, the code should remove all the strings and alpha numeric characters except the numbers (which would be my output). I tried the following code but guess it won't do:

a = Textbox1.text
Dim value As Decimal = CDec(Regex.Replace(a, "[D]", ""))

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Textbox That Accepts Only Numbers?

Aug 15, 2009

here's the code

Public Class Prelim1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim mile, inches, centimeter, foot, kilometers As Double
mile = TextBox1.Text

[code]....

notice the textbox1.text, it should only accept a double. IF the user inputs letter or whatever characters then the program must prompt a message which reads "input only a number"

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Regex - .NET: Manipulating TextBox Input: Dash Every 5 Characters And Removing Special Characters?

Dec 21, 2011

Essentially I am trying to replicate the Windows 7 (In-Windows) activation key TextBox form. The Form where it will auto capitalize letters, remove or deny all non alphanumeric characters except dashes every 5 characters that will be auto-input.I assume this can be done with a fairly complicated replacement Regular Expression but I cannot seem to create one to fit the needs.

This is an Example of what I have right now, but it creates an infinite loop as it removes all characters including dashes, than adds a dash, which changes the text and removes the dash again.

[Code]...

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Restricting Characters Or Numbers In A Textbox?

Jun 21, 2009

can anyone help me in restricting characters or numbers in a textbox?

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How To Make Textbox Accept Only Latin Characters And Numbers

Dec 11, 2011

How Can I make TextBox accept only Latin characters and numbers.?

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Regex: Take Text & Some Special Characters Between The Xml Tags Using Regex On C#.net?

Feb 23, 2012

I want to take the text and some special characters between the xml tags.. My input file contains:

[Code]...

now i want the Regex to take text and the special characters between the tags <line>,<inline>..

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Shape Of Really Large Characters Such As Numbers And Alphabetic Characters

May 9, 2011

With the shape of really large characters such as numbers and alphabetic characters + others, is there a way to get that shape as a REGION please?Imagine a really fat snake forming the letter S or two rectangles placed together to form a large letter L or a T like the shapes in TETRIS.

1) Does anyone know of anything in VB.Net that can translate such shapes into a System. Drawing.Region or know of a project elsewhere that achieves this please?

2) While I'm on the subject, how would you SCALE UP / DOWN a System.Drawing.Region please? How would you work out the Transform Matrix required please?

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Regex - Three Non Numeric Characters?

May 8, 2012

I want to check if a Vb.net string contains at least 3 non white space characters of which at least one non numeric character. i dont know creating the regular expression for it?

[code]...

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Using Regex To Extract Between Two Characters?

Sep 4, 2011

Im trying to extract ALL urls from a webpage in between two sets of strings.

I have the code to extract all links, but I am

href="http://www.blah.com/yadayada?tf=info"

Using regex; I want to grab everything between href=" and the quotation mark at the end .

This was a snipit I found that works for extracting in between 'href="' and </a>

HTML

Regex.Matches(data, "href=""(.*?)"".*?>(.*?)</a>")

I learn best by example, and I tried piecing it together by comparing the regex match above, to a URL in between hreft" and </a> - but I couldnt do it. Ive been working on this project for a while, and im getting tired.

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Create Application That Accepts Hindi / Marathi Font In Textbox?

Dec 1, 2011

I want to create a VB.NET application, that is capable of accepting hindi/marathi fonts in the textbox

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C# - RegEx For Alphanumeric And Special Characters

May 17, 2012

I need to define a regular expression that accepts Alphanumeric and the following special characters:
@#$%&*()-_+][';:?.,!

I've come up with:
string pattern = @"[a-zA-Z0-9@#$%&*+-_(),+':;?.,![]s\/]+$";
But this doesn't seem to be working.

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Reading Csv File :: OleDBDatReader Returns Only Numbers?

Feb 5, 2012

I have following code that reads data using OleDbDataReader.The funny thing is that I can only return numbers although I converted to string.

Dim cn As New OleDbConnection
Dim fileloc = Server.MapPath("~/test/")
cn.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + fileloc +

[code].....

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Differences Of Special Characters In Regex: .net Vs Javascript?

May 7, 2011

I've got this implementation in javascript:

EscapeForRegex = function(input) {
var specials = ["[", "\", "^", "$", ".", "|", "?", "*", "+", "(", ")", "{", "}"]
for (var k in specials) {

[code].....

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RegEx - Parse CSV File And Replace Certain Characters

Sep 2, 2010

I've used regular expressions in the past. I have an app that parses a .csv file and replaces certain characters (commas). Here's an example..
item1, item2, item3, fruits are apples, oranges, grapes. Squash is a vegetable, not a fruit.
What my app does is search each line between character1 and character18 and replace all "," with "~". How this is done through regular expressions?

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RegEx - Remove Non Alphanumeric Characters Except Spaces

Apr 27, 2012

I have to process a string that could include all sorts of non-standard characters and I've been asked to provide a regular expression that will match and remove all characters that are non-alphanumeric except punctuation and spaces. Is there a way to do this?

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Regex Pattern To Find Illegal Characters?

May 21, 2010

I need to find illegal characters in a windows forms textbox

The textbox text is sent as an sms text message and illegal characters are not allowed

e.g 1 client pasted some text from a word document into the texbox and the ' in msword appears as slanting ' in the textbox (see below)

e.g msword text - This is a new test of the Services

after pasting in textbox - This is a new test of the Services

The sms company have advised the slanting apostrophe is a unicode character

How can I find characters like above so I can remove them before sending the sms text

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Replace Characters Inside Parenthesis Using Regex?

Sep 30, 2010

To search a pattern containing parenthesis, they must be escaped using backslashes. So to search for (Streetname) you must use (Streetname). If you don't use , whatever is between () will be retained and available for reference through the variables $1, $2 etc... Exemple, in the sentence "It's worth noting that (StreetName) can be anything...(Post), (TreeStump)", $1=StreetName, $2=Post, $3=TreeStump

[Code]....

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Spliting Strings Special Characters In Regex?

Nov 3, 2011

I am trying to split a data field in VB using the split function.

The data field has the following character strings"&|:"

which I need to base my split on.

Dim elements As String() = Regex.Split(dataField, "&|:")
field1 = elements(1)
field2 = elements(2)

The field1 and field2 still have a trailing "&|" chracters.How do I check if the field1 and field2 have these trailing characters? How do I delete them?PS - I have tried "&\|:" as the delimiters in the split function which did not work.

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Replacing Characters In Textbox (including Special Characters)

Aug 5, 2011

I have two textboxes. I type in one of them and the text gets copied in real time into another textbox. There is one catch. I need to replace specific character with something else.

If I enter a quote " in textbox1, it has to be replaced with " in textbox2.

I started with something like the below code, but obviously this does not work (tried different stuff - this is for demonstration only). In the example below 'a' represents " , and 'b' represents "

Private Sub TextBox1_KeyUp(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox1.KeyUp
TextBox2.Text = TextBox1.Text

[Code]....

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Regex - .NET Regular Expressions, Matching Escape Characters?

Dec 3, 2010

I want to use Regex.Replace to replace a Match with a context sensitive value. I use the MatchEvaluator for this. But to make things simpler lets say I'm matching %v I want %v to be escapable, so if I use \%v it will not match. Anything else should match.

The pattern I came up with is this: (?:[^\]|^)%v It basically matches %v if it occurs at the beginning of the string, or if it follows any character except . It doesn't capture the first part of the expression.I know this isn't the "right" way to do it. But it worked just fine until I noticed that when I use this pattern in a replace, it includes the character before %v in the replacement(duh, right?)So, if I have ThisIsAValue:%v and I do Regex.Replace, replacing with the string Value, my result will be ThisIsAValueValue instead of ThisIsAValue:ValueI've tried googling this but the fact that "escape character" is so heavy in RegEx, all the results are geared towards the USAGE of escape characters instead of picking them out with a pattern.

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Regex Replace All Characters In Variable Length String?

Oct 6, 2010

Using VB or C#, I am getting a string of variable length from the database. This information is sensitive information that only certain users will be able to see.I have two cases that will use the same logic (I think).scenario 1: replace all characters with xscenario 2: replace all characters with x except the last 4 characters (assume length > 4 - this check is being done).I thought that this would be easiest using Regex.Replace(input, pattern, replacestring). As opposed to a lot of string handling with substrings and forcing a length of 'x's.

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.net - Regex Test For NUMBERS?

Feb 28, 2009

I have found a Regex that test if the text passed to a TextBox is an email.

If Regex.IsMatch(email.Text, "^(?("")("".+?""@)|(([0-9a-zA-Z]((.(?!.))|[-!#$%&'*+/=?^`{}|~w])*)(?<=[0-9a-zA-Z])@))" + "(?([)([(d{1,3}.){3}d{1,3}])|(([0-9a-zA-Z][-w]*[0-9a-zA-Z].)+[a-zA-Z]{2,6}))$") _

[code]....

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Regex On Get Only First Few Numbers From Left To Right?

Aug 15, 2011

I am pretty new on regular expressions, but as far as I've been wandering around Google, the only thing I could do to solve my problem is through regex. I have a collection of strings which have patterns like these:

"3 - Orange, Lemon"
"4 - Pineapple, Orange"
"12 - Lime, Strawberry"

[Code]...

Only the first few numbers. A comment, suggestion, or point to the right links/articles would help because so far I couldn't manage to find a decent tutorials that easy to understand.

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Takes 3 Percentages(numbers) And Returns An Average Of The Grades In Letter Format(A,B,C)?

Apr 15, 2011

I'm new to coding and i need to make a program that takes 3 percentages(numbers) and returns an average of the grades in letter format(A,B,C). This is what I have so far:[code]......

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.net - Parse Numbers From String Using Regex In .NET?

Feb 16, 2010

I am trying to parse the digits to store in a variable from a string in VB.NET (would like to also include the decimal point).

Here is an example string: Refund issued for $27.74

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Regex - Get The Numbers Surrounded A Character ?

Oct 27, 2011

I'm creating a calculator, and I need a way to get the numbers surrounded a character I provide.

For example:
Equation: 5+5*2/7
Character: *
Result: array(5, 2)

I was wondering if regex would be able to do this and if it can.

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RegEx - How To Gather All Numbers In String

Sep 4, 2009

I am trying to gather all numbers in this string which is the name of an image file. The name of the string is ABC09072009XYZ777000111.jpg. When I use
Dim rx as new Regex("d")
Console.Writeline(rx.match(input))
It only returns the first set of numbers before the xyz. I need them all.

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Regex - Import Phone Numbers From A String?

Jan 25, 2010

I am trying to wirte a function for a Phone number class called "import phone number". It should take any string with 10 digits in it somewhere (and allow for an extension), and import them into it's own properties: AreaCode, Prefix, Suffix, and Extension (aaa-ppp-ssss-xxxx...).

I check the input with a regex to make sure it's valid, now i want to tokenize those pieces into their respective properties. What I have looks like this (incomplete):

Public Sub ImportPhoneNumber(ByVal anyNumber As String)
'phone number is 10-digits long, e.g.: 012-345-6789
Dim reg_exp_10 As New Regex("^((D*)d(D*)){9}((D*)d){1}(((x|ext){1}(d)+)?|D*)$", RegexOptions.IgnoreCase)

[Code].....

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RegEx - International/Domestic Phone Numbers?

Mar 25, 2009

(^(+[1-9][0-9]*(([0-9]*)/-[0-9]*-))?[0]?[1-9][0-9-]*)/(^([0-9]( /-)?)?((?[0-9]{3})?/[0-9]{3})( /-)?([0-9]{3}( /-)?[0-9]{4}/[a-zA-Z0-9]{7}))$I'm trying to write a RegEx to check for International and Domestic phone numbers. This appears to be working for domestic phone numbers but it doesn't look to work for international numbers. Is there something I'm missing? Can anyone else try this with numbers you know and just let me know if it's missing anything?

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RegEx 20 Real Numbers Separated With Commas?

Mar 11, 2010

I worked around to modifying regular expression below but i could't get what I need. I google it, many things found but not for what i want. Dim valid AS Boolean = Regex.IsMatch(TextBox1.Text, "^(,?d+){0,20}$")Allow numbers exactly like 32,1,6,32,12,21,21,54,675,8,4,3,2,9,0,21,21,21,43,744 in TextBox1. Perfect.

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