public static string ValidFileImport() { string retVal = string.Empty; System.Web.SessionState.HttpSessionState currentSession = HttpContext.Current.Session; if (currentSession[vs_pfImportedInvoice] != null) { #region Import File Entities.PalletForceImportedInvoice pfii = (Entities.PalletForceImportedInvoice)currentSession[vs_pfImportedInvoice]; try { Facade.IPalletForceImportPreInvoice facPFImport = new Facade.PreInvoice(); currentSession[vs_pfImportedInvoice] = facPFImport.ValidatePFImportedItems(pfii, currentSession[vs_userID].ToString()); retVal = bool.TrueString; } catch (Exception ex) { #region File Removal on Error retVal = FileRemovalOnError(currentSession[vs_uploadedFilePath].ToString(), ex); #endregion } #endregion } return(retVal); }