Given this string:
http://s.opencalais.com/1/pred/BusinessRelationType
I want to get the last part of it: "BusinessRelationType"
I have been thinking about reversing the whole string then looking for the first "/", take everything to the left of that and reverse that. However, I'm hoping there is a better/more concise method. Thoughts?
Thanks, Paul
Whenever I find myself writing code such as LastIndexOf("/"), I get the feeling that I am probably doing something that's unsafe, and there is likely a better method already available.
As you are working with a URI, I would recommend using the System.Uri class. This provides you with validation and safe, easy access to any part of the URI.
Uri uri = new Uri("http://s.opencalais.com/1/pred/BusinessRelationType");
string lastSegment = uri.Segments.Last();
You can use string.LastIndexOf to find the last / and then Substring to get everything after it:
int index = text.LastIndexOf('/');
string rhs = text.Substring(index + 1);
Note that as LastIndexOf returns -1 if the value isn't found, this the second line will return the whole string if there is no / in the text.
if (!string.IsNullOrEmpty(url))
return url.Substring(url.LastIndexOf('/') + 1);
return null;