October 2010
Intermediate to advanced
1920 pages
73h 55m
English
Content preview from ASP.NET 4 Unleashed
Using the
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Using the RegularExpressionValidator Control
The RegularExpressionValidator control enables you to compare the value of a form field against a regular expression. You can use a regular expression to represent string patterns such as email addresses, Social Security numbers, phone numbers, dates, currency amounts, and product codes.
For example, the page in Listing 3.13 enables you to validate an email address (see Figure 3.11).
Figure 3.11. Validating an email address.
Listing 3.13. ShowRegularExpressionValidator.aspx
The regular expression ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.