diff --git a/src/BootstrapBlazor/Components/Upload/ButtonUpload.razor b/src/BootstrapBlazor/Components/Upload/ButtonUpload.razor
index 66815687591..7c53f357dd3 100644
--- a/src/BootstrapBlazor/Components/Upload/ButtonUpload.razor
+++ b/src/BootstrapBlazor/Components/Upload/ButtonUpload.razor
@@ -7,7 +7,8 @@
     <BootstrapLabel required="@Required" ShowLabelTooltip="ShowLabelTooltip" Value="@DisplayText" />
 }
 <div @attributes="@AdditionalAttributes" class="@ClassString" id="@Id">
-    <Button class="@BrowserButtonClassString" IsDisabled="@CheckStatus()" Size="Size" Icon="@BrowserButtonIcon" Text="@BrowserButtonText" Color="@BrowserButtonColor">
+    <Button class="@BrowserButtonClassString" IsDisabled="@CheckStatus()" Size="Size" Icon="@BrowserButtonIcon"
+            Text="@BrowserButtonText" Color="@BrowserButtonColor">
         @ChildContent
     </Button>
     @if (ShowUploadFileList)
diff --git a/src/BootstrapBlazor/Components/Upload/UploadBase.cs b/src/BootstrapBlazor/Components/Upload/UploadBase.cs
index 77c9cc61b05..054bdb04125 100644
--- a/src/BootstrapBlazor/Components/Upload/UploadBase.cs
+++ b/src/BootstrapBlazor/Components/Upload/UploadBase.cs
@@ -149,7 +149,7 @@ protected async Task OnFileChange(InputFileChangeEventArgs args)
             fileCount = MaxFileCount.Value;
 
             // 计算剩余可上传数量
-            fileCount = fileCount - Files.Count;
+            fileCount -= Files.Count;
             if (fileCount <= 0)
             {
                 // 如果剩余可上传数量小于等于 0 则不允许继续上传
diff --git a/test/UnitTest/Components/UploadButtonTest.cs b/test/UnitTest/Components/UploadButtonTest.cs
index f5d15d31332..f5df1a93510 100644
--- a/test/UnitTest/Components/UploadButtonTest.cs
+++ b/test/UnitTest/Components/UploadButtonTest.cs
@@ -86,7 +86,7 @@ public void ButtonUpload_IsDisabled_Ok()
     }
 
     [Fact]
-    public void InputUpload_IsMultiple()
+    public async Task InputUpload_IsMultiple()
     {
         var cut = Context.RenderComponent<ButtonUpload<string>>(pb =>
         {
@@ -108,6 +108,13 @@ public void InputUpload_IsMultiple()
         var button = cut.Find(".btn-browser");
         Assert.True(button.IsDisabled());
 
+        // 调用 Reset 方法
+        await cut.InvokeAsync(() => cut.Instance.Reset());
+
+        // 重置后上传按钮应该被启用
+        button = cut.Find(".btn-browser");
+        Assert.False(button.IsDisabled());
+
         // 开启多选功能
         cut.SetParametersAndRender(pb =>
         {