diff --git a/src/BootstrapBlazor/Components/Table/Table.razor.Pagination.cs b/src/BootstrapBlazor/Components/Table/Table.razor.Pagination.cs
index 61e323f2165476b8e2ac81ed53627eda857b9404..ccc475a95afe3d1550958300e67bb542522ba93e 100644
--- a/src/BootstrapBlazor/Components/Table/Table.razor.Pagination.cs
+++ b/src/BootstrapBlazor/Components/Table/Table.razor.Pagination.cs
@@ -5,6 +5,7 @@
 using Microsoft.AspNetCore.Components;
 using System;
 using System.Collections.Generic;
+using System.Diagnostics.CodeAnalysis;
 using System.Threading.Tasks;
 
 namespace BootstrapBlazor.Components
@@ -39,7 +40,8 @@ namespace BootstrapBlazor.Components
         /// 获得/设置 每页显示数据数量的外部数据源
         /// </summary>
         [Parameter]
-        public IEnumerable<int> PageItemsSource { get; set; } = new int[] { 20, 50, 100, 200, 500, 1000 };
+        [NotNull]
+        public IEnumerable<int>? PageItemsSource { get; set; }
 
         /// <summary>
         /// 异步查询回调方法
diff --git a/src/BootstrapBlazor/Components/Table/Table.razor.cs b/src/BootstrapBlazor/Components/Table/Table.razor.cs
index c2f57049c542625721690bafcd2a1de4d3944357..3e3913d23efddbfade9c89db5d3ce9a42397c3a1 100644
--- a/src/BootstrapBlazor/Components/Table/Table.razor.cs
+++ b/src/BootstrapBlazor/Components/Table/Table.razor.cs
@@ -649,12 +649,6 @@ namespace BootstrapBlazor.Components
 
             Interop = new JSInterop<Table<TItem>>(JSRuntime);
 
-            // 初始化每页显示数量
-            if (IsPagination)
-            {
-                PageItems = PageItemsSource.FirstOrDefault();
-            }
-
             // 设置 OnSort 回调方法
             OnSortAsync = QueryAsync;
 
@@ -717,6 +711,13 @@ namespace BootstrapBlazor.Components
         {
             base.OnParametersSet();
 
+            // 初始化每页显示数量
+            PageItemsSource ??= new int[] { 20, 50, 100, 200, 500, 1000 };
+            if (IsPagination)
+            {
+                PageItems = PageItemsSource.FirstOrDefault();
+            }
+
             if (ScrollMode == ScrollMode.Virtual)
             {
                 IsFixedHeader = true;