diff --git a/AyCode.Blazor.Components/Services/AcSignalRClientBase.cs b/AyCode.Blazor.Components/Services/AcSignalRClientBase.cs
index d2f6189..f2c6694 100644
--- a/AyCode.Blazor.Components/Services/AcSignalRClientBase.cs
+++ b/AyCode.Blazor.Components/Services/AcSignalRClientBase.cs
@@ -84,19 +84,19 @@ namespace AyCode.Blazor.Components.Services
         }
 
         #region CRUD
-        public virtual Task<TResponseData?> GetByIdAsync<TResponseData>(int messageTag, params Guid[] ids) where TResponseData : class
+        public virtual Task<TResponseData?> GetByIdAsync<TResponseData>(int messageTag, object[] ids) where TResponseData : class
             => SendMessageToServerAsync<TResponseData>(messageTag, new SignalPostJsonDataMessage<IdMessage>(new IdMessage(ids)), AcDomain.NextUniqueInt32);
-        public virtual Task GetByIdAsync<TResponseData>(int messageTag, Func<ISignalResponseMessage<TResponseData?>, Task> responseCallback, params Guid[] ids)
+        public virtual Task GetByIdAsync<TResponseData>(int messageTag, Func<ISignalResponseMessage<TResponseData?>, Task> responseCallback, object[] ids)
             => SendMessageToServerAsync(messageTag, new SignalPostJsonDataMessage<IdMessage>(new IdMessage(ids)), responseCallback);
 
         public virtual Task<TResponseData?> GetAllAsync<TResponseData>(int messageTag) where TResponseData : class
             => SendMessageToServerAsync<TResponseData>(messageTag);
         public virtual Task GetAllAsync<TResponseData>(int messageTag, Func<ISignalResponseMessage<TResponseData?>, Task> responseCallback)
             => SendMessageToServerAsync(messageTag, null, responseCallback);
-        public virtual Task GetAllAsync<TResponseData>(int messageTag, Func<ISignalResponseMessage<TResponseData?>, Task> responseCallback, params Guid[]? contextIds)
+        public virtual Task GetAllAsync<TResponseData>(int messageTag, Func<ISignalResponseMessage<TResponseData?>, Task> responseCallback, object[]? contextIds)
             => SendMessageToServerAsync(messageTag, (contextIds == null || contextIds.Length == 0 ? null : new SignalPostJsonDataMessage<IdMessage>(new IdMessage(contextIds))), responseCallback);
 
-        public virtual Task<TResponseData?> GetAllAsync<TResponseData>(int messageTag, params Guid[]? contextIds) where TResponseData : class
+        public virtual Task<TResponseData?> GetAllAsync<TResponseData>(int messageTag, object[]? contextIds) where TResponseData : class
             => SendMessageToServerAsync<TResponseData>(messageTag, contextIds == null || contextIds.Length == 0 ? null : new SignalPostJsonDataMessage<IdMessage>(new IdMessage(contextIds)), AcDomain.NextUniqueInt32);
 
         public virtual Task<TPostData?> PostDataAsync<TPostData>(int messageTag, TPostData postData) where TPostData : class
diff --git a/AyCode.Blazor.Components/Services/AcSignalRDataSource.cs b/AyCode.Blazor.Components/Services/AcSignalRDataSource.cs
index 34125da..8f54911 100644
--- a/AyCode.Blazor.Components/Services/AcSignalRDataSource.cs
+++ b/AyCode.Blazor.Components/Services/AcSignalRDataSource.cs
@@ -7,6 +7,7 @@ using AyCode.Core.Extensions;
 using AyCode.Core.Helpers;
 using AyCode.Core.Interfaces;
 using AyCode.Services.SignalRs;
+using AyCode.Utils.Extensions;
 
 namespace AyCode.Blazor.Components.Services
 {
@@ -96,16 +97,18 @@ namespace AyCode.Blazor.Components.Services
         protected List<T> InnerList = []; //TODO: Dictionary??? - J.
         protected readonly ChangeTracking<T> TrackingItems = new();
 
-        protected readonly Guid[]? ContextIds;
+        public List<Guid>? ContextIds;
+        public string? FilterText { get; set; }
+
         public AcSignalRClientBase SignalRClient;
         protected readonly SignalRCrudTags SignalRCrudTags;
 
         public Func<ItemChangedEventArgs<T>, Task>? OnDataSourceItemChanged;
         public Func<Task>? OnDataSourceLoaded;
 
-        public AcSignalRDataSource(AcSignalRClientBase signalRClient, SignalRCrudTags signalRCrudTags, params Guid[]? contextIds)
+        public AcSignalRDataSource(AcSignalRClientBase signalRClient, SignalRCrudTags signalRCrudTags, IEnumerable<Guid>? contextIds = null)
         {
-            if (contextIds?.Length > 0) ContextIds = contextIds;
+            if (contextIds != null) (ContextIds = new List<Guid>()).AddRange(contextIds);
 
             SignalRCrudTags = signalRCrudTags;
             SignalRClient = signalRClient;
@@ -115,6 +118,16 @@ namespace AyCode.Blazor.Components.Services
         public object SyncRoot => _syncRoot;
         public bool IsFixedSize => false;
 
+        private object[]? GetContextParams()
+        {
+            var parameters = new List<object>();
+            if (ContextIds != null) parameters.AddRange(ContextIds.Cast<object>());
+            if (!FilterText.IsNullOrWhiteSpace()) parameters.Add(FilterText);
+
+            if (parameters.Count == 0) parameters = null;
+            return parameters?.ToArray();
+        }
+
         /// <summary>
         /// GetAllMessageTag
         /// </summary>
@@ -124,7 +137,7 @@ namespace AyCode.Blazor.Components.Services
         {
             if (SignalRCrudTags.GetAllMessageTag == AcSignalRTags.None) throw new ArgumentException($"SignalRCrudTags.GetAllMessageTag == SignalRTags.None");
 
-            var resultList = (await SignalRClient.GetAllAsync<List<T>>(SignalRCrudTags.GetAllMessageTag, ContextIds)) ?? throw new NullReferenceException();
+            var resultList = (await SignalRClient.GetAllAsync<List<T>>(SignalRCrudTags.GetAllMessageTag, GetContextParams())) ?? throw new NullReferenceException();
 
             await LoadDataSource(resultList);
         }
@@ -139,7 +152,7 @@ namespace AyCode.Blazor.Components.Services
                     throw new NullReferenceException($"LoadDataSourceAsync; result.Status != SignalResponseStatus.Success || result.ResponseData == null; Status: {SignalResponseStatus.Success}");
 
                 return LoadDataSource(result.ResponseData);
-            }, ContextIds);
+            }, GetContextParams());
         }
 
         public async Task LoadDataSource(IList<T> fromSource, bool clearChangeTracking = true)
@@ -179,7 +192,7 @@ namespace AyCode.Blazor.Components.Services
 
             try
             {
-                resultitem = await SignalRClient.GetByIdAsync<T>(SignalRCrudTags.GetItemMessageTag, id);
+                resultitem = await SignalRClient.GetByIdAsync<T>(SignalRCrudTags.GetItemMessageTag, [id]);
                 if (resultitem == null) return null;
 
                 if (TryGetIndex(id, out var index)) InnerList[index] = resultitem;
diff --git a/AyCode.Blazor.Controllers/AyCode.Blazor.Controllers.csproj b/AyCode.Blazor.Controllers/AyCode.Blazor.Controllers.csproj
index 4842669..4e7639e 100644
--- a/AyCode.Blazor.Controllers/AyCode.Blazor.Controllers.csproj
+++ b/AyCode.Blazor.Controllers/AyCode.Blazor.Controllers.csproj
@@ -58,6 +58,7 @@
     <PackageReference Include="MessagePack" Version="2.5.168" />
     <PackageReference Include="Microsoft.AspNetCore.SignalR.Client" Version="8.0.6" />
     <PackageReference Include="Microsoft.AspNetCore.SignalR.Common" Version="8.0.6" />
+    <PackageReference Include="Serialize.Linq" Version="3.0.152" />
   </ItemGroup>
 
 </Project>