Use regular expressions in C # to verify phone numbers, phone numbers, social security numbers, numbers, and postal codes

The main code to verify the phone number is as follows:

public bool Istelephone (string str_telephone)

{

Return System.Text.RegularExpressions.Regex.IsMatch (Str_telephone, @ "^ (\d{3,4}-) \d{6,8}$");

}

The main code to verify the phone number is as follows:

public bool Ishandset (string str_handset)

{

Return System.Text.RegularExpressions.Regex.IsMatch (Str_handset, @ "^[1]+[3,5]+\d{9}");

}

The main code to verify the ID number is as follows:

public bool Isidcard (string str_idcard)

{

Return System.Text.RegularExpressions.Regex.IsMatch (Str_idcard, @ "(^\d{17} (?: \ D|X) ($) | (^\d{15}$) ");

}

Verify that the main code entered as a number is as follows:

public bool Isnumber (string str_number)

{

Return System.Text.RegularExpressions.Regex.IsMatch (Str_number, @ "^[0-9]*$");

}

Verify the main code of the postcode as follows:

public bool Ispostalcode (string str_postalcode)

{

Return System.Text.RegularExpressions.Regex.IsMatch (Str_postalcode, @ "^\d{6}$");

}

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Use regular expressions in C # to verify phone numbers, phone numbers, social security numbers, numbers, and postal codes