Load a datagridview using List<> with files in a folder

      private void LoadGridInFolder()
        {
          string  sMask = "*.*";
            string[] aExcludeExt = { ".DB",".JPG",".BMP",".PNG",".PDF",".TXT",".WMV",".MPEG",".AVI" };
            DirectoryInfo di = new DirectoryInfo(FullQualifiedDocumentFolder);
            List<PolicyDocs> DocRec = new List<PolicyDocs>();

            FileInfo[] DirFiles = di.GetFiles(sMask);
            foreach (FileInfo fi in DirFiles)
            {
                if (!aExcludeExt.Contains(fi.Extension.ToUpper()))
                {
                    PolicyDocs rcd = new PolicyDocs();
                    rcd.FileName = fi.Name;
                    rcd.Docdate = fi.LastAccessTime;
                    rcd.Length = fi.Length;
                    rcd.CreatedDate = fi.CreationTime;
                    rcd.Extension = fi.Extension;
                    rcd.Folder = di.Name;

                    DocRec.Add(rcd);
                }
            }
            dataGridView1.DataSource = DocRec;
            SetColumns(dataGridView1);

            // SetColumns(dataGridView1);
        }