.

SlnMesnac.WPF/ViewModel/IndexViewModel.cs

@@ -123,7 +123,9 @@ namespace SlnMesnac.WPF.ViewModel
           
                 List<LogoIdentify> list = await logoIdentifyService.GetAllRecordAsync();
                 if (list == null || list.Count == 0) return;
-               await App.Current.Dispatcher.BeginInvoke((Action)(() =>
+            LogoIdentifyDataGrid.Clear();
+
+            await App.Current.Dispatcher.BeginInvoke((Action)(() =>
                 {
                     LogoIdentifyDataGrid.Clear();
                     list = list.OrderByDescending(x=>x.RecordTime).ToList();