diff --git a/src/BootstrapBlazor/Components/Table/Filter/StringFilter.razor.cs b/src/BootstrapBlazor/Components/Table/Filter/StringFilter.razor.cs
index c245f5a25..ca794c86f 100644
--- a/src/BootstrapBlazor/Components/Table/Filter/StringFilter.razor.cs
+++ b/src/BootstrapBlazor/Components/Table/Filter/StringFilter.razor.cs
@@ -1,4 +1,4 @@
-// Copyright (c) Argo Zhang (argo@163.com). All rights reserved.
+// Copyright (c) Argo Zhang (argo@163.com). All rights reserved.
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 // Website: https://www.blazor.zone or https://argozhang.github.io/
 
@@ -16,11 +16,11 @@ namespace BootstrapBlazor.Components
     {
         private string Value1 { get; set; } = "";
 
-        private FilterAction Action1 { get; set; } = FilterAction.GreaterThanOrEqual;
+        private FilterAction Action1 { get; set; } = FilterAction.Contains;
 
         private string Value2 { get; set; } = "";
 
-        private FilterAction Action2 { get; set; } = FilterAction.LessThanOrEqual;
+        private FilterAction Action2 { get; set; } = FilterAction.Equal;
 
         [Inject]
         [NotNull]