Split out ints from string

Question

Let\'s say I have a web page that currently accepts a single ID value via a url parameter:
http://example.com/mypage.aspx?ID=1234

I want to change it to acce

Answer 1

List convertIDs = new List;
string[] splitIds = ids.split(',');
foreach(string s in splitIds)
{
    convertIDs.Add(int.Parse(s));
}

For completeness you will want to put try/catches around the for loop (or around the int.Parse() call) and handle the error based on your requirements. You can also do a tryparse() like so:

List convertIDs = new List;
string[] splitIds = ids.split(',');
foreach(string s in splitIds)
{
    int i;
    int.TryParse(out i);
    if (i != 0)
       convertIDs.Add(i);
}