Using Regular Expressions To Build SPList Collections

Posted in SharePoint 2007 Development |
Posted by Adam Buenz

One of my friends just asked me a rather distinctive question. What if I wanted to build a typed collection of SPList objects by passing in a SharePoint web (SPWeb) and a pattern to match the list by (string) into some arbitrary method?

In order to do this, we can presume since the pattern is being passed in as a parameter that in some additional scene it is being constructed and is well-formed. Therefore, we can do a uncomplicated regular expression match leveraging the list title and the pattern. Following, test the result of the match, ensuring that it coordinates to success. We then return the collection if the count is higher than 0, otherwise just return null.

Select For Unformatted Code
C#:
  1. public static List<SPList> PoolListsByExpression(string pattern, SPWeb web)
  2. {
  3. List<SPList> tempListCollection = new List<SPList>();
  4. foreach (SPList list in web.Lists)
  5. {
  6. if (Regex.Match(list.Title, pattern).Success)
  7. {
  8. tempListCollection.Add(list);
  9. }
  10. }
  11. if (tempListCollection.Count> 0)
  12. {
  13. return tempListCollection;
  14. }
  15. return null;
  16. }

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2 Responses to “Using Regular Expressions To Build SPList Collections”

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    July 15th, 2008 at 5:49 pm

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