Use Of RegularExpressionValidator In MS .Net Framework?
Apr 26, 2010
I am trying to use the RegularExpressionValidator Control in Visual Studio to validate a textbox for email address expressions.
Here's my code (very basic)
Email:
<input id="Text1" type="text" /><br />
<br />
<input id="Validate" type="button" value="Validate" runat="server" /><br />
<br />
[Code]....
I have tried the same mechanism before and have worked; however, this time I am on a new machine, WinXP Pro running IIS v5.1.
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Sep 17, 2010
I have a text field where user can enter either an URL or an Email address. How can I use a RegularExpressionValidator to validate that user have entered an URL or an Email address
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Dec 8, 2010
I had a question on here for a RegularExpressionValidator which I'm relatively new to. It was to accept all alphanumeric, apostrophe, hyphen, underscore, space, ampersand, comma, parentheses, full stop. The answer I was given was:
"^([a-zA-Z0-9 '-_&,().])+$"
This seemed good at first but it seems to accept amoung other things '*'.
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Jan 20, 2011
I have an text box i need to validate so that the user can enter enter up to four character and they can be alphanumeric. I am using VS2003, .NET 1.1.
what is the expression i should use to validate this condition
Tried like this:
<asp:TextBox id="wtxtTPP" tabIndex="2" runat="server" CssClass="text" Width="144px" MaxLength="4" />
<asp:RegularExpressionValidator id="RegularExpressionValidator1" style="z-index: 101; left: 208px; position: absolute; TOP: 16px" runat="server" ErrorMessage="RegularExpressionValidator" ValidationExpression="^([Ss]{0,4})$" ControlToValidate="wtxtTPP" />
<input style="z-index: 102; left: 88px; position: absolute; top: 72px" type="submit" value="Submit" id="Submit1" name="Submit1" runat="server">
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Jan 20, 2010
Why this code allows user do not enter any text? AFAIK + means One or more .
[code]....
I want user was able to enter only 9 digits. And this field is required. How can I do that?
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Sep 17, 2010
below is the code and when i select a wrong filetype i get instant red "*" but i dont see the validation summary and there is a buton("upload") and when i click on it than i get the validation summary error message.
my question is: why validation summary is not displaying when i select the wrong file type?
[Code]....
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Oct 14, 2010
Is there any way to make a RegularExpressionValidator render itself using display:block, instead of display:inline in its style attribute, when setting the Display property to "Display='Dynamic'"?
I have tried setting it in the stylesheet but this gets overwritten when it is rendered on the page.
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Feb 15, 2010
I am using a RegularExpressionValidator in my code as follows:
<asp:RegularExpressionValidator ID="rev1" runat="server"
ValidationExpression="[a-zA-Z0-9]{5,7}"
ControlToValidate="txtTAM5" ErrorMessage="Please enter a valid value." SetFocusOnError="True"
Display="Dynamic" ValidationGroup="vg1"></asp:RegularExpressionValidator>
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Sep 21, 2010
I have a query on RegularExpressionValidator. Although this question already asked in various time, I just want to confirm that if I want to validate "only alphanumeric or(and) double quote, single quote, exclamation, semicolon, colon, ampersand, dot, comma, hyphen, question mark, front slash, parentheses, space of 5-40 character length" then will the regular expression be this :
[Code]...
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Feb 23, 2010
I would like to raise error by myself and use reqularexpressionvalidator to show it's text. (My idea is to reuse this control.) I don't remember what property should I use, and what to assign to show the message from control. How to raise error for this control from code?
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Nov 4, 2010
I have a ValidationExpression that works fine in IE8 and Firefox but client uses IE6 and it doesn't seem to work for them. The issue concerns special characters in a password text box, the clients wants to be able to INCLUDE special characters but IE6 doesn't seem to pick them.
Basically we want to be able to include any letter (upper and lower case) , any number and any special character. This is what I've got so far...
ValidationExpression="^(?=.*d)(?=.*[a-zA-Z]).{8,}$"
Like I said,
test123*
works ok on IE8 but IE6 doesn't seem to pick up special chars so thinks it's only 7 characters long..
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Apr 11, 2010
I added to my project a simple RegularExpressionValidator for email.ut i cant undersend why it is allows wrong for any email.
[Code]....
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Oct 28, 2010
I have a textbox with a RegularExpressionValidator. I want to require the user to enter at least n characters. I'd also like to remove whitespace both at the start and end of the textbox. I'd still like to allow spaces within the textbox, I just want to remove the excess at the beginning and end. I basically don't know how to combine the trim regex and the count together for use in a REV.
trim: ^s*((?:[Ss]*S)?)s*$
count: .{10}.*
I basically want to know if the input, after leading and trailing whitespace is removed, is greater than n characters.
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Nov 25, 2010
Is there a way to add more than one ControlToValidate to my RegularExpressionValidator?I have two textboxes for postcode and I want to add the same RegularExpressionValidator to both.Currently I have one for each box but if they are both wrong it shows up two error messages but I only want the user to see one.Here's my RegularExpressionValidator
<asp:RegularExpressionValidator CssClass="errorpopup" Display="Dynamic" ID="rvpPostCodeZone" validationgroup="tbEditEmailCorr" runat="server" ErrorMessage="<strong>Please enter a valid post code.</strong>" ControlToValidate="tbEditPostCodeZone" ValidationExpression="^[0-9a-zA-Z' ']{3,}$" SetFocusOnError="true" />
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Nov 23, 2010
I'm trying to add an exception to my RegularExpressionValidatorBasically i'm populating a textbox with the text "Not supplied" if the user hasn't given us the information if they try and submit that field I have a RegularExpressionValidator which only allows 0-9 characters so it shows the error message. Is there a way to add the exception "Not supplied" to my RegularExpressionValidator?Here's the code.
[code]...
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Feb 24, 2011
Wondering if you could give me a nudge in the right direction. I'm working on an app where I need to validate a field for a correct URL. However, this is an optional field and may be left blankI was just wondering, how can I bypass the validator if the field is null.
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Mar 25, 2010
I am using RegularExpressionValidator to validate EmailID where ValidateExpresion is::
w+([-+.']w+)*@w+([-.]w+)*.w+([-.]w+)*
Actually i want to validate EmailID that can also contain spaces.
example::
< raman@gmail.com >,<raman@gmail.com>,< raman@gmail.com>
I want to validate all of the above Email IDs as Valid.
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Mar 2, 2011
i am working with web services webmethod and i have a method that accepts a string of phonumber (1234567890) and how can i make sure before i make a call to API that, the phone number is valid (no characters or not less then 10 digits)
how can i implement in web.service?
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Jan 13, 2011
Does the RegularExpressionValidator always need a RequiredFieldValidator?I see that when there is no input the RegularExpressionValidator is not working. Correct?
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May 18, 2010
I host a website that has recently been upgraded from .NET Framework 2.0 to .NET Framework 4.0. Within the website, I have an instance of BlogEngine which still requires .NET Framework 2.0. Each website is in it's own application pool. My issue is that when I browse to the blog portion of my website, I receive a 500.19 error with the following information...
The configuration section 'system.web.extensions' cannot be read because it is missing a section declaration The web.conf file that is listed in the error message is the config file that belongs to my root website which is running .NET Framework 4.0. How do I get the two websites to run together in the same website using different versions of the .NET Framework?
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Jan 7, 2010
[Code]....
so what did i do wrong with the regex that its now allowing other document types to be uploaded. I need to make sure that ONLY pdf are allowed. What can i change to the validator and if anything add to the code behind to correct this?
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Aug 31, 2010
My implementation is simple. I have a public static variable in a class called EmailHelper containing my regular expression as follows:
[Code]....
I then have the following web controls on my page:
[Code]....
The problem is that doesn't matter what regular expression I define as the value of my static public variable bound to the <asp:RegularExpressionValidator />, I always get an error (i.e. it aways says "invalid email")...
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Jun 4, 2010
well i try to create a RegularExpressionValidator to validate subnet mask.
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Mar 16, 2011
This regular expression (stored in an ASP.NET regular expression validator) works fine in IE8 and firefox but fails in IE7: (?=.[0-9])(?=.[a-z]).{7,30}
<asp:RegularExpressionValidator ID="RegularExpressionValidator1" runat="server"
ErrorMessage="Password criteria failed!" ControlToValidate="txtPassword"
ValidationExpression="(?=.*[0-9])(?=.*[a-z]).{7,30}" Display="Dynamic"
meta:resourcekey="RegularExpressionValidator1Resource1"></asp:RegularExpressionValidator>
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May 5, 2010
gularExpressionValidator on my textbox that I am already using, but I need it tweaked. Here is the one I'm using: ^(([0-9]|[1][0-9]|2[0-3])(.)(25|50|75|00))|(24.00)|([0-9]|[1][0-9]|[2][0-4])$It is for the input of hours worked in a day. The minimum is 0.00 and the max is 24.00. The hours are rounded off to the quarter hour, so it allows for .25, .50, .75, and .00.
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