Help with regular expression

[Guest]

Hi,

I am stuggling with building a regular expression that would allow only 0-9,
+, -,_, space, (, ). Can someone guide me. This is for validating phone using
JavaScript in my asp page.

Thanks for you time,

Joe

 

[Guest]

Don't recreate the wheel. Search http://www.regexlib.com/Default.aspx.
You're bound to find what you're looking for.

HTH

 

[Guest]

hello
i think this code will help. U have to change the code a little bit
according to ur situation. in my case if the phone no. is valid then it will
return true. u can send return the validated phone no or error message.
Note: in this function i have use a string variavble ErrorMessage which is
member of the class. You have to handle it urself.

for any more help you can contact me via emal ---> (e-mail address removed)

public bool Validity( string PhoneNo)
{
bool flag = false;
if( PhoneNo[0] >= '0' && PhoneNo[0] <= '9' || (PhoneNo[0] == '+') )
{
for(int i = 1; i < PhoneNo.Length; i++)
{
if( (PhoneNo >= '0' && PhoneNo <= '9') || (PhoneNo == '_') ||
(PhoneNo == '-') || (PhoneNo == ' ') )
flag = true;
else
{
this.ErrorMessage = "The character \"" + email + "\" is not allowed
in the PhoneNo";
flag = false;
break;
}
}
}
else
{
this.ErrorMessage = "First character must be between 0-9 or it may be + ";
flag = false;
}
return flag;
}