Using A Regular Expression Validator For Numbers In A Textbox?
Jul 13, 2010How can I use a Regular Expression Validator to ensure that only a number like 3.00 is entered into a text box?
View 1 RepliesHow can I use a Regular Expression Validator to ensure that only a number like 3.00 is entered into a text box?
View 1 RepliesI am using regular expression validator for Numbers, Comma and Decimal.. The expression is given below.
mNumValidator.ValidationExpression = "^(d|,)*.?d*$"
Now I would like to have 5 digits behind decimal.
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", "[\(\)\-\.+]", "");
How would I create a regular expression validator for a textbox, to limit the input to a decimal number between .1 and 1?
View 1 RepliesI would like to validate the textbox for specific text and it must not be blank. But the regular expression validator is not validating if the text box is BLANK. However, it validates if I type something in the text box.
How can I make regular expression to trigger even if the text box is empty?
Should I use Required Validator + Regex Validator at the same time?
<asp:TextBox ID="txtcard" runat="server" MaxLength="16"></asp:TextBox>
<asp:RegularExpressionValidator ID="RegularExpressionValidator2" runat="server"
ControlToValidate="txtcard" ErrorMessage="Please type credit card no"
ValidationExpression="^d{16}$"></asp:RegularExpressionValidator>
I need Regular expression validator for validating date format dd/MM/yyyy
View 1 RepliesI using RangeValidator (0-10)gularExpressionValidator for text box ,Iam using regx for validate numeric characters
But if i enter charcters it will fire both RangeValidator and regx validator eventhoug i am enterd character,
i want to fire both validators seperatly
Here is my code
[code]...
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+)*
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>
Suppose i have this input string "3rd position 5th time"
I want to write a Regular Expression to get 3 and 5 in a String like this "3 5" i.e., 3 and 5 both will be in a String but having a space. 3 and 5 may be any numbers like 12 or 13 ony any other numbers. For this i wrote this Regular Expression
Dim regexpression As
String =
"^[0-9]*+[0-9]"
but its not working .I am unable to get the logic.
Need reg exp for following.
May not repeat same number or letter more than 3 times.
May not contain more than 3 sequential number or letters in a row.
I have a text box which accepts CVV code of 3 or 4 numbers and im using regular expression validator
this is wat im using : is this correct way of using or not
code : ValidationExpression="(d{3,4}$"
i need a regular expression that should accept indian mobile numbers. for example...
9788812345
9876512345
7891234567
8122212345
I need a regular expression that only excepts numbers divisible by 1.5. I checked regex library and they have nothing on it.
View 4 RepliesI believe it is a simple question. :)
In my ASP.NET Web Form I have a multiline TextBox which should be validated with RegularExpression Validator. Text box should contain one ore more strings "a" (just 'a' char, nothing else).
So far I got these regular expressions for my RegularExpressionValidator object:
(?m:(^a$)+)
(?m:A(^a$)+)
(?m:^a$)
Neither works. :) Guess there is something fundamental I'm not getting yet.
[Code]....
I'm having a hard time trying to create a right regular expression for the RegularExpressionValidator control that allows password to be checked for the following:- Is greater than seven characters.- Contains at least one digit.- Contains at least one special (non-alphanumeric) character.Cant seem to find any results out there too.
View 1 RepliesI need to validate the text box at server side by using regular exp which should accept 1 or 2 or 3 or 4 or 5 digits numbers .Need to restrict decimal part.
Ex: 1 or 23 or 455 or 5643 or 45667 --Should accept.
1.3, .2, 33.3 , 444.55 ,5555.99 -- should not accept.
here is waht i am trying to achieve.
first character is in caps and the rest of the name is in small for Firstname Space
first character is in caps and the rest of the name is in small for lastname
ex: Ajay Kumar Bakshi
expression: ^[A-Z]{1}[a-z]*[s]{1}[A-Z]{1}[a-z]*$
what is the regular expression validator for letters only?. I have tried this"[a-zA-Z]" and "[a-z][A-Z]" with no luck..
View 4 RepliesI have a page with required field and regular expression validators. I noticed recently that some of the regular expression validators (the regex validators on the Date fields) are not firing. What should I be looking at to troubleshoot this?
View 8 RepliesWhen I added Regular Expression validator on FileUpload Control, Page.IsValid returns false & Data is not Saved. I had used Regular Expression Validator like this:
asp:RegularExpressionValidator
ID="REVFileType"
runat="server"
ErrorMessage="*Invalid File(.bmp)"
ControlToValidate="FileUpload1"
Font-Bold="True"
SetFocusOnError="True"
ValidationExpression="^(([a-zA-Z]:)|(\{2}w+)$?)(\(w[w].*))(.jpg|.JPG|.gif)$"></asp:RegularExpressionValidator>.
I had used it to check if uploaded file is of extension .jpg|.JPG|.gif
I'm looking to validate the length of a textarea using a regular expression validator. It should allow all characters and crlfs. I'm also concerned about crlfs counting as 1 or 2 characters, I'm concerned it may be different across browsers but I'm hoping ASP.NET regulates it. Also, I'm saving to a mix of varchar and nvarchar fields in MSSQL, do I need to be concerned about the way crlfs are saved there? I'm in a hurry to do this right, so I'll be researching all this on my own but I'm just hoping someone out there might have experience handling such concerns.
View 1 RepliesI have a fileupload on my page which only accepts PDF Files and to do this i have a Regular Expression Validator to check the extension of the files. step 1 load pagestep 2 browse and select a txt file using fileupload then validator error is displayedstep 3 browse and select a pdf file using fileupload then no validator error.step 4 Upload the file using a Button and on post back i can see the validator error is displayed again.how can i remove the validator error on postback without hidding the control.?
View 2 RepliesEarlier my text box was running on this Validation Expression="^[a-zA-Z'.s-]{1,80}$", to allow only alphabets,Ā Ā ' . s . Now my text box should be capable of taking Chinese characters as well, so I wasĀ learntĀ onlineĀ to use this p{L} for unicodeĀ instead of Ā a-zA-Z, and set EnableClientScript="false".
asp:RegularExpressionValidator ID="regexpName" runat="server" CssClass="failureNotification" ErrorMessage="No Special Characters allowed"
ControlToValidate="txtName" ValidationExpression="^[p{L}'.s-]{1,80}$" Display="Dynamic" meta:resourcekey="regexpNameResource1" EnableClientScript="false"
I have done both, but it doesn't work. My input values were like
1. John123 2. ę±čÆ%^&
Both of these were accepted without any errors. But I expect only alphabets in english and chinese and ' . s - to be accepted as Name input.
I have this email, which I know is valid:
MyName@MyDomain.info
I am validating an input field with the default asp net email validator expression and it returns the email address as INVALID.
Here is my code:
<asp:RegularExpressionValidator
ID="RegularExpressionValidator1"
runat="server"
ValidationExpression="w+([-+.']w+)*@w+([-.]w+)*.w+([-.]w+)*"
ControlToValidate="Email"
runat="server"
ErrorMessage=" * "
/>
Is there a better regular expression pattern to validate an email address?