no message

Areas/Admin/Controllers/MainServer/ToChargeBackRecordController.cs

@@ -400,8 +400,11 @@ namespace MySystem.Areas.Admin.Controllers
             {
                 return "Warning|" + error;
             }
-            string text = string.Format("退款信息: '" + info + "'，Time'" + DateTime.Now + "'");
-            function.WriteLog(text, "机具回收确认退还");//机具回收确认退还
+            if (!string.IsNullOrEmpty(info))
+            {
+                string text = string.Format("退款信息: '" + info + "'，Time'" + DateTime.Now + "'");
+                function.WriteLog(text, "机具回收确认退还");//机具回收确认退还
+            }
             db.SaveChanges();
             AddSysLog("0", "ToChargeBackRecord", "Import");
             return "success";