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.???
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?
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.
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.
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.
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?
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 ...
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
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.
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.
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)
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:
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.