Web Forms :: Validating Multiple Email Address From A Textbox?
Jul 2, 2010
multiple email address are enetered in the textbox at present i have used SPLIT function to split the emails based on a delimiter on server side wht i need is , suppose i have 10 email addrees in the textbox and suppose 3rd one is not valid i dont want the processing to be stopped at 3rd , if 3rd is invalid it shld be skipped and the 4th one shld be processed.
We are developing an Intranet application that looks up some data for a user through hooks into Active Directory. However, our Network guys don't always enter in a users email address when creating a new user. Therefore, our user database is missing the email address for over half of our users. We have over 10,000 users, therefore asking them to enter 5000+ email addresses into each missing email address field in Active Directory isn't an option. I already know how to validate that an email address is correctly formatted using Regex. What I need is a way to lookup the email address entered in the email address textbox and see if it exists on Outlook/Exchange (or looking up the email address using the First Name/LastName would work). If it does exist then the address is valid, if it is invalid then the user typed in the wrong address. I've tried to do something with CDO, but have had no luck. We use Outlook 2003 and ASP.NET 2.0.
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.
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.
I'm receiving the following error and can't figure out how to fix it:
The specified string is not in the form required for an e-mail address.
It is only happening as soon as I change the message.From to a textbox rather than a static email address. I have pasted the relevant code below:
[Code]....
I did not post the whole block of code but why is this happening when I change the message.From to emailTextBox.Text instead of a static value? And yes I do have valid email addresses in web.config and code.
I m Using a GridView: Columns: "Ser_type" tells what type of data is it i.e. VC for Varchar, NU for Numeric, DT for DateTime etc, for the time being i m using datavalidation controlls at design time. this is not a good approach. I just wan to do is that, DataValidationControlls should be created at RunTime and TextBox should validate data at runtime only. i.e. if Data required in the TextBox is of Type VC then it should validate only at runtime, if DT then validate DateTime only at Runtime similarly for all dataType:
In addition to the process of regex syntax validation of Email Addresses entered by users, I'm trying to check if the entered email address is a real one and does exist?The best I could achieve is to "Ping" the host the email address is associated with. But there are some other terms in the industry like Handshaking with Email Server, etc.not necessarily with 100% confirmation accurary!
here is sender email but i want there wasn't any email address.I mean i want when users click on button and send me an email there wasn't any email address in sender details.
I am building an email feature in my website (jobs site). By using this functionality, recruiters will be able to send emails to candidates. I want an option so that the user can also set 'From Address' and the email should be ANTI-SPAM compliant.
I have a textbox that is set to readonly so users won't try to type something in it. It is then populated when a treenode is clicked. I want to validate what is in the box after it's populated from the treenode click but if i have it set to readonly, in the codebehind it shows up as an empty string. if i take the readonly off it shows up populated. what would you do about this?
I am writing a registration form which will store all the information to the database. I need to validate some data before saving like empty and isunique.
I have username and email address field in my form. I used CustomValidator to call a function check unique to execute my code to check the given email address with the list in database.
It works fine for new case but when i am for edit case it does check with itself and reports already in use.
My Steps:
1.) Page load
If edit case retrieve data and populate them in control like. txtemail.text = dbrec("email")
I want to validate a textbox that only a numeric currency value can be put into it, for example 0.00. I thought the following code was correct but it doesnt seem to wrk, its causing an error on my page and when I remove it the page is fine, it doesn't actually give exact details of the error on the page just says "syntax error" in the browser that is all.
the text box should validate in such a manner that the special characters like <,>,%,!,? should not appear in the text box.if appears an erroe msg should be displayed representing invalid name.or else it sholud be processen....
can any one tell the code(regular expression) for the above mentioned.
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?