Question

I basically want to check if part of a string begins with a certain sequence – in this case ftp://, or http://. How would I do this?

Thanks

Answer 1

Use String.StartsWith. With just two possible prefixes you can write it as follows:

if (s.StartsWith("http://") || s.StartsWith("ftp://")) { ... }

If you have a lot of different possible prefixes it might be better to use a loop or a LINQ expression instead. For example:

string[] prefixes = { "http://", "ftp://", /* etc... */ };
if (prefixes.Any(prefix => s.StartsWith(prefix)))
{
    // ...
}