Web Forms :: Enable And Disable Regular Expression Validation For Textbox
May 7, 2012
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 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 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.
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.
I want a regular expression validation to validate a textbox like this "1051,2034,3045,3445". Dont allow these formats "101,343,,34,,",23,4334,34,". It should allow only this format "1051,2034,3045,3445".
i want to ask question i have simple regular expression pattern like "[ABC]" when i add it to me class
[Code]....
it is working good when i add A , B Or C as i need.but if i copy this pattern and paste it in my regular expression validator control it is not working
I have a problem using the regular expression validation.In a detailed view I fill out a form to create record for an Employee.I have to enter the Zip code. To validate it I use the regular expression .Then I want to edit the record later. I don't want to edit the zip code ,it's bounded from the select but, the update is keeping asking to re-enter the code.I attached the code to that template as well as the select and update statement
In my registration form, there is field to enter email-id of member, i want to restrict user, so that he would not able to enter gmail, yahoo, radiff.... emailids is this possible.., Only company email id eg: priyanka@juncturetech.net must be allowed?
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 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."));
