public static Dictionary <string, string> GetFiles(string fileids, bool flag = false) { FileUpload filedal = new FileUpload(); var filelist = new Dictionary <string, string>(); if (string.IsNullOrEmpty(fileids)) { return(null); } var files = fileids.Trim(',').Split(','); foreach (var f in files) { filelist.Add(f, filedal.GetFileName(f, flag)); } return(filelist); }