Returns the number of groups found in the current SearchMatch. Regular expression groups are created by adding parentheses to the regular expression. This method should always return at least 1.

public int GroupCount{ get; }

Public ReadOnly Property GroupCount() As Integer

          WordApplication app = new WordApplication();
          Document doc = app.Open(@"C:\somedoc.doc");
          IEnumerator searcherator = doc.Search("\s\d\d\d-?\d\d-?\d\d\d\d\s");
          while (searcherator.MoveNext())
          {
               SearchMatch match = (SearchMatch)searcherator.Current;
               int numMatchGroups = match.GroupCount;
               match.Element.Delete();
          }
        

          Dim app As New WordApplication()
          Dim doc As Document = app.Open("C:\somedoc.doc")
          Dim searcherator As IEnumerator = doc.Search("\s\d\d\d-?\d\d-?\d\d\d\d\s")
          While searcherator.MoveNext()
               Dim match As SearchMatch = searcherator.Current
               Dim numMatchGroups As Integer = match.GroupCount
               match.Element.Delete()
          End While