public List <Newsletter> get_by_search(string keywords = "", Int32 pageSize = 0, Int32 pageNumber = 0,
string sortField = "", string sortOrder = "")
{
// Create the string array
string[] wordArray = new string[] { "" };
// Recreate the array if keywords is different from null
if (keywords != null)
{
wordArray = keywords.Split(' ');
}
// Create the list to return
List <Newsletter> posts = Newsletter.GetBySearch(wordArray, pageSize, pageNumber, sortField, sortOrder);
// Return the list
return(posts);
} // End of the get_by_search method