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#?
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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?
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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?
View 3 Replieshow can i check the regular expression for the following? the string should only contain this
0-9
a-z
A-z
! # $ % < > ( ) * + - _ ,.;:/ += [] @
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?
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..
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>
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.
View 1 RepliesIf i am giving the text
hjghj bvgfh . it is failing
I am a new to regular expressions.I need to validate an identification number so that the textbox doesn't accept numbers like 1111111, 2222222, 3333333......9999999 and 1234567, 2345678, 3456789.Could someone please post regular expression for not accepting such format.
View 4 RepliesI have a Regular Expression ^[a-zA-Z''-'s]{1,40}$ Now i want to allow DOT (.) in this expression so hows its possible to add DOT in this expression.
View 3 RepliesI have a regular expression validation set on text box. I have a grid on the same page with edit and delete buttons. In some cases I don't want the regular expression to fire. For example, I have a scenario where the text box will be disabled but I can still enter data in to the grid and modify it, but the regular expression fires when I modify the grid and the changes in the grid are not processed.how can I stop the validation when I am working on grid. I can see a property causes validation for button to stop validation but don't know how can I stop for the grid.
View 3 Repliesi 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.
I am facing a problem for doing URL validation which should allow atlest two periods in the URL.If the URL does not contain atleast two periods then it should throw an error. Also the regular expression must obey all the URL validations.Please help GURUS it is urgent for me to get some solution.
View 6 RepliesI want regular expression for number,i want it for quantity.
it should not except only 0 .becuase 0 quantity is not possible.
but it should work for 10,100,200 etc
I would like to validate P.O. Box with regular expression in web form text box? I don't want to allow user to enter PO Box.
eg. P. O. Box, p.o. box, PO Box, po box, etc
I want to rewrite this Url www.xyz.com/products.aspx?id=1&product=acid for this i want regular expression.
View 11 Replies how to code the following regular expression
ABC[1 digit Number b/w 1-4]1A[7 digit number 0-9]-5[5 digit character]
Eg
ABC21A0123789-5ABCYZ
I have a problem with regular expression because I want to validate a textbox and I want that mark the error text when the textbox be empty.
View 1 RepliesI am using regex for server side validations.
I am facing a problem with regex. I want to check for sepecial characters like ><*&()%$@!~+...
I need to filter these special charecters...but the problem is in my 10 textboxes there only 3 are required...
I can submit the form without entering anything...but my regex is not allowing me to submit the form without giving a space from keyboard...
I just want to check for special charecters and empty textbox without giving a spacebar...
I just check these sites(http://regexlib.com/ and http://www.regular-expressions.info/) and read some documentation on regex...its kind of confusing....
Here is my regex for Middlename: ^[a-zA-Z''-'s]|[ ]{1,40}$ its worked but its not correct....then I changed it to ^[a-zA-Z''-'sd*]{1,40}$ this also not taking emptytextbox without giving a space...
My Goal:
In most of the textboxes I need to allow only numbers and - # _ in some textboxes....
For Address: need to allow alphabets and numbers and #-_' "
City: numbers and alphabets no special chars...
Main problem is I can write regex for most of these stuff but need to all textboxes without entering anything (empty textboxes).My work got stoped due to this.
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
The table is span over multiple line/contains white spaces/tabs...
I have the regular expression to match the start and end tag respectively over a single line
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Is there any regular expression generator available that can generate me a regular expression based on the text I select and the parameters I specify?
can someone tell me the regex pettern to match a string from [a-zA-Z] where each character in the group cannot occur more than n number of times.
View 8 Replieshere 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]*$
how to write a regular expression that accepts no less than 10 digits and no more than 11. i need it to validate a textbox for phone number. i have searched the web but i cant seem to find any.
View 5 Replies
