Web Forms :: Regular Expression - Check Length Of Textbox Less Than 200 Character
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?
I need to construct a regular expression for the password textbox, Min:8,Max:16 and must include atleast a number(0-9),alphabets upper and lower case. I am unable to limit the length to 16.
I'm testing out a CMS I've built in ASP.NET and I'm having issues validating a form textarea with a regular expression.
I've used a ReguarExpressionValidator control to make sure a maximum of 4000 characters are entered but have realised I'm not including line breaks in the regular expression and can't figure out how to include them?
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.
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#?
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?
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:
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.
I want to validate a textbox with regular expression so you only can enter numeric characters, but now I want that the error validation appear if the textbox be empty. here is the code
Types.Add("NUMBER", new Validation(@"[d]{1,255}","Only numbers can be entered in this field."));
the text box should validate in such a manner that the special characters like <,>,%,!,? should not appear in the text box.if appears an erroe msg should be displayed representing invalid name.or else it sholud be processen....
can any one tell the code(regular expression) for the above mentioned.
I having a two radio button. When the second radio button is enabled, a text box which accept the email id will appear. I am validating the Email using Regular expression validator.
When the second radio button is clicked, and I enter the invalid email id so that it shows me and error. But when I click the first radio button, it is showing the save validation. I need this to not show the validation when the first radio button is clicked and invalid email id is there in the text box.
I want to validate in server side, Suppose I have entered first numeric and another chars,I don't want to allow first numeric then how to validate in server side
this works good when I am using it for a normal(singleline) textbox.But when i use this with Multiline textbox it does not work. I am using RegularExpressionValidator control of asp.net for the same.Would there be any way I can make it compatible with Multiline textbox?