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."));
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.
I 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?
how to use regular expression in vbscript to validate username field. ie it should have minimum of 4 characters and at the same time it should contain minimum of 3 ALPHABETS. ie
1234 - not allowed abc1 -allowed
My code
dim regObj,retVal set regObj = new RegExp regObj.Pattern ="[A-Za-z0-9_s]{4,}" regObj.IgnoreCase = true regObj.Global=True retVal = regObj.Test(sString)
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:
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.
I would like to know what the expression for "letters only" is for my asp.net web application. I tried ^[A-Za-z] but it does not work I would also like a regular expression for "numbers only except "-"
I am trying to write a Regular Expression Validator to allow users to input any number (either positive or negative), except 0. I tried the followings but obviously they failed:
^[1-9-]{1,10}$ <= failed when the 2nd to n-th digit is 0
I am using a regex to detect forum tags within posts, such as "[quote]text[/quote]" and then replace them with HTML formatting. I posted a question Forum tags. What is the best way to implement them? about a problem with nested tags.
Right now this matches an opening and closing tag, with match groups for the tag name, the tag content, and an optional value like the value after the equals in this forum tag [url=www.google.com]click me[/url].
What I need is for the expression to match the opening tag OR the closing tag and have a match group containing the tag name (including the '/' for the closing tag). I then want to iterate through them sort of like this:
Dictionary<string, int> tagCollection = new Dictionary<string, int>(); inputString = Regex.Replace(inputString, @"expression I'm asking for here", match => {
[Code]....
So now, each tag is appended with a number and I could use the original regex to perform the tag functions and properly handle nested tags as separate tags.