validation code for telephone number in germany

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dear sir,

I have found some problem when implemented the validation code in c#. The telephone number and email id should be following pattern.

Telephone number is as follows:

1. " nnn - nnn nn nn " in case of Big Cities.
1. " nnnn - nn nn nn " in case of Small Towns.

For Zwolle (Big Cities) : 038 - 123 45 67
For xyzTown(Small Cities/Town) : 0381 - 12 34 56

For email id:-

more than one @ symbol should not appear..

The code should be in C# and displayed the message on the asp.pages but the message should be displayed on the runtime and also not used javascript and validation extender and the code should be used c# only.

thanks in advanced...

Posted 4-Jan-12 18:18pm

Member 8089110

Updated 5-Jan-12 2:10am

Mehdi Gholam

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Suraj S Koneri · Answer 1 · 2012-01-04T18:23:00

Hi,

For this requirement you can use the built in regular expression validator. in that you have,
German Phone Number Validator
Email Validation and so many things
Even if you want your own requirement you can specify that also using the regular expressions..

Hope this helps you and this is what you want..

Rajesh Anuhya · Answer 2 · 2012-01-05T02:18:00

Solution 2

See this Regular expression examples..
Here[^]

Posted 5-Jan-12 2:18am

Rajesh Anuhya

Wendelius · Answer 3 · 2012-01-05T05:41:00

If I understood the spec correctly, you could use for the telephone a regular expression like:

C#

(\d){3,4} - (\d){2,3} (\d){2} (\d){2}

However, it's a good thing to validate the input but if the input always follows strict rules, in my opinion it would be better to eliminate the errors already in the user interface. For this consider using a masked edit control.For example:
- MaskedEdit Demonstration[^]
- Mask TextBox ASP.NET Control[^]

validation code for telephone number in germany

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