Numeric Text box coding

[MiPaul]

Hello everyone

I am trying to create a text box which allows the user to enter an IP address only. The user will enter only the numbers and the dots. I have tried using the masked text box, but it does not allow the dot to float

___.___.___.___ this is what it look like, and not all IP addresses are all 3 digits

for example 69.145.230.110

Any help would be greatly appreciated, and mentioned in the read me file!

[gaylo565]

Here is a regular expression for validating IP addresses:

public bool IsValidIP(string addr)
{
    //create our match pattern
    string pattern = @"^([1-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])(\.
    ([0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])){3}$";
    //create our Regular Expression object
    Regex check = new Regex(pattern);
    //boolean variable to hold the status
    bool valid = false;
    //check to make sure an ip address was provided
    if (addr == "")
    {
        //no address provided so return false
        valid = false;
    }
    else
    {
        //address provided so use the IsMatch Method
        //of the Regular Expression object
        valid = check.IsMatch(addr, 0);
    }
    //return the results
    return valid;
}

Just need to send the text in your text box as the parameter for the method and a bool value is returned describing the validity of the IP address. Hope this helps you out.