You can add in more form elements into the form, as you would with any other form.
NET 2.0 (C#) web form that contains a textbox for users to enter multiple e-mail addresses separated by semicolons.
” Server-side checking entails the user submitting the form to the server, such as ASP, C# or PHP, then the server code checks and returns an error if it finds one. Client-side validation usually means: Java Script intercepting the form before it’s submitted to check for errors, possibly using regex.
This saves the trip to the server but still uses a bit of code.
Example: Directions: Simply cut and paste the below code into the section of your page.
It contains a form with one box that is checked for "email validity".
Here is an example page that does all of this for you.
Text Box 1 is for single emails and Text Box 2 validates multiple emails.
E-mail address must be in a standard format (You can use a regular expression validator to do the work automatically for you on the client and server.We need to validate that each individual e-mail address entered is a valid e-mail address format.We've added a Custom Validator to perform this validation.Local part can be a combination of strings, numbers and alphanumeric and so is the domain.
The best way is to validate the combinations of such string is using Regular expression.I want to validate the E mail Address as soon as it is entered in a text box and the focus is changed to some other place in my web page.