diff --git a/examples/AntDesign.X.Blazor.Demo.Wasm/_Imports.razor b/examples/AntDesign.X.Blazor.Demo.Wasm/_Imports.razor
index fd89b0b..a713146 100644
--- a/examples/AntDesign.X.Blazor.Demo.Wasm/_Imports.razor
+++ b/examples/AntDesign.X.Blazor.Demo.Wasm/_Imports.razor
@@ -1,5 +1,6 @@
 @using System.Net
 @using Microsoft.AspNetCore.Components
+@using Microsoft.AspNetCore.Components.Forms
 @using Microsoft.AspNetCore.Components.Web
 @using Microsoft.AspNetCore.Components.Routing
 @using Microsoft.AspNetCore.Components.WebAssembly.Hosting