SitecoreTutor

How to  restrict certain types of files from being uploaded into Sitecore Create a Custom Class like below  using System; using System.Collections.Generic; using System.IO; using System.Linq; using System.Web; using Sitecore; using Sitecore.Diagnostics; using Sitecore.IO; using Sitecore.Pipelines.Upload; namespace mySitecoreTestNew.Pipelines {     public class CustomSave     {         public void Process(UploadArgs args)         {             foreach (string key in args.Files)             {                 HttpPostedFile file = args.Files[key];                 if (file.FileName.Length > 0 && file.ContentLength > 0)                 {                   ...