C# - Email Validate ( Not Only Regex)?
Jan 9, 2011
I want to validate complete Email address. I am not asking to match using pericular string. but suppose someone enter email id a@bnm.com then first the bnm should be validated and if such domain found then also it should check for such a@bnm.com is available or invalid.???
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Nov 19, 2010
I have this simple regex string to validate emails. It worked fine until someone came along with an email address that contained an ampersand:
^(['_a-zA-Z0-9-]+)(.['_a-zA-Z0-9-]+)*@([a-zA-Z0-9-]+)(.[a-zA-Z0-9-]+)*(.[a-zA-Z]{2,5})$
how I can alter this to accept the & symbol? I have tried countless ways with no success.
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Sep 7, 2010
I am new at this so be easy on me... :)
I need to validate if a the ID number that the user typed in my site is a valid ID.
How do I check it?
Do I need to use RegularExpressionValidator?
More over, I also need to validate the credit card number, I found a few RegularExpressions for that in the net but each one is different from the other and I am not sure which one to use.. Does anyone know od a working expression that will suit all credit cards?
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Mar 6, 2013
i want a regular expression to validate path. THe path is :
Server.MapPath("../Error/Feedbackdoc/" & fid & ext)
& fid & ext is the file which is uploaded.
i want to validate the path i.e. ../Error/Feedbackdoc/ and rest can be name of uploaded file.
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May 7, 2015
How me can validate a email textbox to take only valid email address if error occur it show the error message in this textbox or as a tooltip. because in the form there is no space to show error message.
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Feb 18, 2010
Please help to understand this RegEx statement in details. It's supposed to validate filename from ASP.Net FileUpload control to allow only jpeg and gif files. It was designed by somebody else and I do not completely understand it. It works fine in Internet Explorer 7.0 but not in Firefox 3.6.
<asp:RegularExpressionValidator id="FileUpLoadValidator" runat="server"
ErrorMessage="Upload Jpegs and Gifs only."
ValidationExpression="^(([a-zA-Z]:)|(\{2}w+)$?)(\(w[w].*))(.jpg|.JPG|.gif|.GIF)$"
ControlToValidate="LogoFileUpload">
</asp:RegularExpressionValidator>
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May 1, 2010
When validating an email address with the regex validation component, an additional RequiredFieldValidator must be added to ensure there is a value present.
I've mostly taken care of this with a CustomFieldValidator, and taking care of this with Javascript.
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May 17, 2010
My company has two different domains for there email
1. [URL]
2. [URL]
i need to validate a text box which captures email address and make sure that it only allows these domains so [URL] and [URL] is allowed.
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May 6, 2010
i have an requirment where an user can enter multiple email address.
The validation should ensure that he should enter address in the format "something@abc.com".
my existing validation ensures that some text is entered before "@" symbol and "abc.com" is the domain.
@"w+([-+.']w+)*@abc.com$";
I would need my regex to check for the delimiter ";" between two mail id's .
valid: a@abc.com |
a@abc.com;b@abc.com|
invalid: a@abc.comm | a@abc.com,b@abc.com | @abc.com |
a@abc.comb@abc.com|
I've tried many links but ther were of no use and i'd be grateful if someone could help me modify the current one to suit my requirments
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Sep 22, 2010
I want to find a substring (email) in a large text using Regex.
just want to return the first valid email that is found from the input text:
example:
string inputString = "Our email is myname@ourcompany.com.
desired output: myname@ourcompany.com
this is the Regex pattern i've used: ^[A-Z0-9._%+-]+@[A-Z0-9.-]+.[A-Z]{2,4}$
- is this pattern correct?
Code:
private static void DumpHRefs(string inputString)
{
Match m;
string HRefPattern = @"^[A-Z0-9._%+-]+@[A-Z0-9.-]+.[A-Z]{2,4}$";
m = Regex.Match(inputString, HRefPattern,
RegexOptions.IgnoreCase | RegexOptions.Compiled);
while (m.Success)
{
Console.WriteLine("Found email " + m.Groups[1] + " at ".......
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Feb 27, 2013
In my resiter form i want users to restrict them not to enter gmail yahoo ids, only company ids would be accepted..
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Oct 5, 2010
I'm developing a website in ASP.NET & C# that will be on the www I have a contact form like most internet websites have and one of those textboxes is an email address. I wish to validate the email address so that the person enters a valid email in the form of [URL] What is the best way to do this?
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Nov 8, 2011
I have a form where a user is going to enter an email address. What is the best way to validate what they enter? Whether it's okay to throw an exception to validate input versus using a regex?
[URL] ....
Specifically: Don't bother with your own validation. .NET 4.0 has significantly improved validation via the MailAddress class. Just use MailAddress address = new MailAddress(input) and if it throws, it's not valid ...
And the counter argument: it is generally bad practice to catch an exception as a way of validating data ...
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Feb 22, 2010
I have a multiline textbox which accepts email id's as the input.ow I want to validate this textbox using javascript so that correct email ids are entered. - If the dont enter any email, error "Email Required" - They may enter single or multiple email id's - Multiple email id's must be separated by a comma. - User may enter one email per line.javascript function for the above. I wrote some function but was not successfull in writing a one for multiple email id's
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Jun 21, 2010
Really sorry because this is almost "send me the code" - although really it's "send me a link to another discussion"
I am setting up a .net membership system and need to validate users from the email address they provide via a "click here to validate your account" type link.
Just wondered if anyone knew of any good tutorials or posts out there about this? I have searched for about an hour and can't find anything - hence me asking the question.
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Apr 8, 2010
how can I check if the email adress is valid before send ?
i need this because the email list that i send some emails with my application is generate without any validation so it can happens
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Jun 4, 2010
How can I validate an email id on a textbox leave event
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Jul 17, 2010
I found one link or web services [URL] which enable me to search whether email id exist in real world or not...Did some testing and it works. Is it possible to make similar web services and use it in my application? because i am not sure till what date this web services will work.
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Jun 21, 2010
able to validate any email address based on the domain. For example, the system says anybody with a microsoft.com email address can create an account. Here is my code so far, it doesn't appear to work.
If Not Regex.IsMatch(tbEmailAddress.Text.Trim, "^([0-9a-zA-Z]([-.w]*[0-9a-zA-Z])*@" + mySetting.EmailDomain)
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Jun 24, 2012
In my website I need to validate email address format. I need to use ASP.Net RegularExpression Validator
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Feb 19, 2010
I'm having a little trouble with using regex in linq. I want to be able to perform a search on values in my database. The goal is to insert a value into the regex and then use that to search a column in a table in my database for that term. I want it to work so that it gets all exact matches and also returns matches in which the search term is a substring of the term in the column.
I was trying to follow this tutorial on msdn, but it doesn't quite fit perfectly with my problem:
[URL]
Code:
[code]....
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Oct 25, 2010
I'm trying out the jQuery Validation plugin jQuery Docs Here is the markup of my form:
<% using (Html.BeginForm("action", "contoller", null, FormMethod.Post, new { id = "sxform" })){%>
<div id="manifest">
Manifest Option:<br />
<%= Html.DropDownList("docid", ViewData["manifests"] as SelectList, new { @class = "required" })%>
</div>
<div id="release">
Release Version:<br />
<%= Html.TextBox("release", null, new { @class = "required" })%>
</div>
<div id="locale">
Localization:<br />
<%= Html.DropDownList("localization", ViewData["localizations"] as SelectList, new { @class = "required" })%>
</div>
<div id="label">
Label:<br />
<%= Html.TextBox("label", null, new { @class = "required" })%>
</div>
<div id="session">
Session ID (optional):<br />
<%= Html.TextBox("sessionInput", null, new { @class = "required" })%>
</div>
<div id="submit"><input type="submit" value="Build" /></div>
<% } %>
JS:
$(document).ready(function(){
$("#sxform").validate();
});
I am using MS MVC HTML Helpers to render this form. The resulting markup looks fine. IE each input and selection element contains the attribute 'class' with the value 'required'. When I submit this form the validation does noting.
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Mar 6, 2011
I would like to know how to use jQuery's Validate plugin to add rules to validate controls in ASCX custom user control?
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Jan 31, 2011
how do I grab an email address from a web form and email to that email address with the link to a webform?
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Jul 31, 2012
i want to add address book in email web application then how it will be possible???
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