Internet E-mail Validation Expression Validates Everything?
Mar 21, 2011
I'm validating input in a asp.net page but the problem is it validates e-mails like hasangürsoy@şşıı.com
My code is:
if (Regex.IsMatch(email, @"w+([-+.']w+)*@w+([-.]w+)*.w+([-.]w+)*"))
{ valid }
else { invalid }
EDIT: I've written a question before especially to validate e-mail addresses including Turkish characters but now I don't want users to be able to input mails with Turkish characters because users mostly type Turkish characters by mistake and I cannot send mails to these addresses.
I'm trying to write a regular expression that allows positive & negative floating point numbers, but doesn't allow empty strings and characters.I have managed to create this
[Code]....
but it allows empty strings and I can't figure out how to add [+-].
My program is a web app which asks the user to input a temperature.
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 am using asp.net 4.0 and I have use FormView with JQuery Validation but thing is that when I close my Internet connection my browser will show offline. What can be be the problem and How to detect which thing is trying to connect Internet How can I solve it.
I am developing a login form with User Name and Password. I want the user to create the username in a specified format. So i am using RegularExpressionValidator for the username. What is the Validation Expression for this format.
The format is:
xyz\t4z4567 (characters are not case sensitive)
Rules:
The username will be created in the above format. first 5 characters(xyz) are same for every username with the slashes. Only "t4z4567" will be changed for every user.
I have one field in database Mobile No.In that I want to put validation which accepts "+" and numbers that is not more then 15.And in that "+" should at the first place in value
I 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.
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.
I want to perform Email validation on mail server through my asp.net application. I am able to check domain but whole email address checkinh is still awaited.
I have a DB field formatted as TIME and want to accept user input in the format of hh:mm or hh:mm:ss. This format will be the run time of a video for example.
I am looking for a Validation Expression that will check compliance with this format requirement.
in my application i have to entrer the date into a textbox. and i'm using a Ajax Tool Kit Calendar control to select the date and is put into a Text Box.the date format should be MM/dd/yyyy i have the regular expression for dd/MM/yyyy format.
i want to validate date format in textbox through regulrexpressionvalidator control but i want to check ValidationExpression from my clsdate class this public variable.
Public DateFormat As String = "dd/MM/yyyy" <asp:RegularExpressionValidator ID="revDOE1" runat="server" ControlToValidate="txtlFollowUp_date" ErrorMessage="Wrong Date Format" ValidationExpression="^(((0[1-9]|[12]d|3[01])/(0[13578]|1[02])/((1[6-9]|[2-9]d)d{2}))|((0[1-9]|[12]d|30)/(0[13456789]|1[012])/((1[6-9]|[2-9]d)d{2}))|((0[1-9]|1d|2[0-8])/02/((1[6-9]|[2-9]d)d{2}))|(29/02/((1[6-9]|[2-9]d)(0[48]|[2468][048]|[13579][26])|((16|[2468][048]|[3579][26])00))))$"> </asp:RegularExpressionValidator>
Basically i'm using the plugin to validate a form. I've got the basics set up and working. Now i'm trying to use remote so that I can check for a duplicate email address. The problem is as soon as I add my checking script the validation stops working on the email field completely. It constantly says "please enter a valid email address" no matter what I put in the field. If I don't have the remote bit in my code the email field validation works correctly.
send me regular expression for this format (DD/MM/YYYY).E.g.--23/12/2009,1/12/2009,1/1/2009.It should accept all the 3 formats..I want regular ex. code only.No other solution.
