How to make textbox accept only email address in C#

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C#

hey i want to know how to validate textbox that it only accepts email address

thanks :d

Posted 21-Feb-12 9:59am

newbie011292

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Sergey Alexandrovich Kryukov 22-Feb-12 16:44pm

Not a question. If you want it, validate it. What's the problem?
--SA

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lewax00 · Accepted Answer · 2012-02-21T10:14:00

Solution 1

You'll probably want to look into Regular Expressions[^] (and here's a more C# specific article[^] on how to use them). Fortunately for you, there should be plenty of existing patterns for checking email addresses, as it's a very common use for them.

Posted 21-Feb-12 10:14am

lewax00

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newbie011292 21-Feb-12 16:21pm

you have some code? but thanks anyway :D

lewax00 21-Feb-12 16:29pm

The second link has some code you should be able to adapt. I doubt anyone here is going to write if completely for you. Google "email address regular expression" or something similar if you need help on the pattern, as I said it's so common you're bound to find one already made.

ProEnggSoft · Accepted Answer · 2012-02-21T13:00:00

Expresso is good free tool to test regular expressions and it can be downloaded from

http://www.ultrapico.com/Expresso.htm[^]

If you are using Windows forms, then in Validating event of the TextBox, test the TextBox.Text property using Regex.IsMatch method for the pattern of email. If it fails then set e.Cancel = true else set e.Cancel = false

If your problem is solved you may accept and vote the solution, otherwise please post your queries

PES

[edit]Spelling mistake in It it fails corrected to If it fails[/edit]