diff --git a/AyCode.Core/Enums/TrackingState.cs b/AyCode.Core/Enums/TrackingState.cs
index 0060f8e..fae7e02 100644
--- a/AyCode.Core/Enums/TrackingState.cs
+++ b/AyCode.Core/Enums/TrackingState.cs
@@ -10,8 +10,9 @@ namespace AyCode.Core.Enums
     {
         None = 0,
         Get = 1,
-        Add = 2,
-        Update = 3,
-        Remove = 4,
+        GetAll = 2,
+        Add = 3,
+        Update = 4,
+        Remove = 5,
     }
 }
diff --git a/AyCode.Core/Extensions/CollectionExtensions.cs b/AyCode.Core/Extensions/CollectionExtensions.cs
index b48fb2b..e17cb65 100644
--- a/AyCode.Core/Extensions/CollectionExtensions.cs
+++ b/AyCode.Core/Extensions/CollectionExtensions.cs
@@ -8,6 +8,7 @@ namespace AyCode.Core.Extensions
     {
         public static TrackingState UpdateCollection<TDataItem>(this IList<TDataItem> source, TDataItem dataItem, bool isRemove) where TDataItem : IId<Guid>
         {
+            if (source == null) throw new ArgumentNullException(nameof(source), $"source == null");
             if (dataItem.Id.IsNullOrEmpty()) throw new ArgumentNullException(nameof(dataItem), "UpdateCollection->dataItem.Id.IsNullOrEmpty()");
 
             var transferIndex = source.FindIndex(x => x.Id == dataItem.Id);
diff --git a/AyCode.Services/SignalRs/SignalRCrudTags.cs b/AyCode.Services/SignalRs/SignalRCrudTags.cs
index 7633e7a..3ffac98 100644
--- a/AyCode.Services/SignalRs/SignalRCrudTags.cs
+++ b/AyCode.Services/SignalRs/SignalRCrudTags.cs
@@ -16,6 +16,7 @@ public sealed class SignalRCrudTags(int getAllTag, int getItemTag, int addTag, i
         {
             TrackingState.None => 0,
             TrackingState.Get => GetItemMessageTag,
+            TrackingState.GetAll => GetAllMessageTag,
             TrackingState.Add => AddMessageTag,
             TrackingState.Update => UpdateMessageTag,
             TrackingState.Remove => RemoveMessageTag,