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.
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.???
View 2 Repliesi 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. Â ../Error/Feedbackdoc/ and rest can be name of uploaded file.
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?
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.
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}$";
m = Regex.Match(inputString, HRefPattern,
RegexOptions.IgnoreCase | RegexOptions.Compiled);
while (m.Success)
{
Console.WriteLine("Found email " + m.Groups[1] + " at ".......
How me can validate a email textbox to take only valid email address if error occur it show the error message in this textbox or as a tooltip. because in the form there is no space to show error message.
View 1 RepliesPlease help to understand this RegEx statement in details. It's supposed to validate filename from ASP.Net FileUpload control to allow only jpeg and gif files. It was designed by somebody else and I do not completely understand it. It works fine in Internet Explorer 7.0 but not in Firefox 3.6.
<asp:RegularExpressionValidator id="FileUpLoadValidator" runat="server"
ErrorMessage="Upload Jpegs and Gifs only."
ValidationExpression="^(([a-zA-Z]:)|(\{2}w+)$?)(\(w[w].*))(.jpg|.JPG|.gif|.GIF)$"
ControlToValidate="LogoFileUpload">
</asp:RegularExpressionValidator>
In my resiter form i want users to restrict them not to enter gmail yahoo ids, only company ids would be accepted..
View 1 RepliesWhen validating an email address with the regex validation component, an additional RequiredFieldValidator must be added to ensure there is a value present.
I've mostly taken care of this with a CustomFieldValidator, and taking care of this with Javascript.
i have an requirment where an user can enter multiple email address.
The validation should ensure that he should enter address in the format "something@abc.com".
my existing validation ensures that some text is entered before "@" symbol and "abc.com" is the domain.
@"w+([-+.']w+)*@abc.com$";
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
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?
View 4 RepliesI 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
View 10 Replieshow 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
How can I validate an email id on a textbox leave event
View 8 RepliesI 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.
View 4 Repliesable 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)
In my website I need to validate email address format. I need to use ASP.Net RegularExpression Validator
View 1 RepliesI 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 ...
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'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]....
As part of our app, user can save some data as XML on server which becomes RSS feed for them. Now some of the file user created have & in file name as BB&T_RSS.xml. So when user point this to [URL], they won't get his. I tried BB%26T.xml, BB&T.xml without any success with IE, Chrome
View 2 Repliesi want to put this text
€
in the text of a dropdownlistitem, so at runtime it will show the euro sign
but .net nicely escapes my code, and then it becomes this:
€
and that will show in my dropdownlist, and that's not what i want.
Any other way to show € £ etc in a dropdownlist is accepted too.
code:
private void FillDropDownCurrency(DropDownList ddl)
{
ddl.Items.Add(new ListItem() { Value = CurrencyConstants.CHF_CURRENCY_CODE, Text = CurrencyConstants.CHF_CURRENCY_SYMBOL, Selected = false });
ddl.Items.Add(new ListItem() { Value = CurrencyConstants.GBP_CURRENCY_CODE, Text = CurrencyConstants.GBP_CURRENCY_SYMBOL, Selected = false });
ddl.Items.Add(new ListItem() { Value = CurrencyConstants.EURO_CURRENCY_CODE, Text = CurrencyConstants.EURO_CURRENCY_SYMBOL, Selected = true });
ddl.Items.Add(new ListItem() { Value = CurrencyConstants.USD_CURRENCY_CODE, Text = CurrencyConstants.USD_CURRENCY_SYMBOL, Selected = false });
}
The CurrencyConstants.EURO_CURRENCY_SYMBOL is the € code
I have the need to add a javascript include to my ASP.NET page. The url of the javascript file has two key/value pairs in the query string. But the ampersand is being escaped and I don't want that.
Page.ClientScript.RegisterClientScriptInclude("myKey",
"https://dev.virtualearth.net/mapcontrol/mapcontrol.ashx?v=6.2&s=1")
This results in the following HTML:
<script
src="https://dev.virtualearth.net/mapcontrol/mapcontrol.ashx?v=6.2&s=1"
type="text/javascript"></script>
But what I really want is:
<script
src="https://dev.virtualearth.net/mapcontrol/mapcontrol.ashx?v=6.2&s=1"
type="text/javascript"></script>
I have a server control that needs to programmatically inject a JavaScript reference into the page. It is to reference Microsoft's Bing map control which requires &s=1 to be appended to the script URL for use over SSL. The problem is that the .NET Framework encodes the attributes and changes the & to an & (verified with Reflector). At some point after that the & is removed altogether.
Desired script tag:
<script type="text/javascript"
src="https://ecn.dev.virtualearth.net/mapcontrol/mapcontrol.ashx?v=6.2&s=1">
</script>
Attempt 1:
var clientScriptManager = this.Page.ClientScript;
if (!clientScriptManager.IsClientScriptIncludeRegistered(this.GetType(), "BingMapControl"))
{
clientScriptManager.RegisterClientScriptInclude(
this.GetType(), "BingMapControl",
"https://ecn.dev.virtualearth.net/mapcontrol/mapcontrol.ashx?v=6.2&s=1");
}
Attempt 2:
HtmlGenericControl include = new HtmlGenericControl("script");
include.Attributes.Add("type", "text/javascript");
include.Attributes.Add("src",
"https://ecn.dev.virtualearth.net/mapcontrol/mapcontrol.ashx?v=6.2&s=1");
this.Page.Header.Controls.Add(include);