diff --git a/src/BootstrapBlazor.Shared/Samples/AutoFills.razor.cs b/src/BootstrapBlazor.Shared/Samples/AutoFills.razor.cs
index b06bad9c5855cb77c911338bc0e566382a7d55f0..ed38a86584c9b2dd898418b20ac6a25e76446463 100644
--- a/src/BootstrapBlazor.Shared/Samples/AutoFills.razor.cs
+++ b/src/BootstrapBlazor.Shared/Samples/AutoFills.razor.cs
@@ -32,6 +32,7 @@ partial class AutoFills
         base.OnInitialized();
 
         Items = Foo.GenerateFoo(LocalizerFoo);
+        Model = Items.First();
     }
 
     private Task OnSelectedItemChanged(Foo foo)
diff --git a/src/BootstrapBlazor/Components/AutoFill/AutoFill.razor.cs b/src/BootstrapBlazor/Components/AutoFill/AutoFill.razor.cs
index 82cd3080a7eccef127ffe3328a789cc0adea2c31..328b644fa2f8dc5989322a3505de5ba291723ee8 100644
--- a/src/BootstrapBlazor/Components/AutoFill/AutoFill.razor.cs
+++ b/src/BootstrapBlazor/Components/AutoFill/AutoFill.razor.cs
@@ -139,6 +139,7 @@ public partial class AutoFill<TValue>
         Items ??= Enumerable.Empty<TValue>();
         FilterItems ??= new List<TValue>();
         OnGetDisplayText ??= v => v?.ToString() ?? "";
+        InputString = OnGetDisplayText(Value);
     }
 
     /// <summary>
diff --git a/test/UnitTest/Components/AutoFillTest.cs b/test/UnitTest/Components/AutoFillTest.cs
index 1e20382ce1d743a5839efe6202b3aa98c12ca73f..d37bcd670c3fcd0e349222299a287cf5669bef5c 100644
--- a/test/UnitTest/Components/AutoFillTest.cs
+++ b/test/UnitTest/Components/AutoFillTest.cs
@@ -214,6 +214,19 @@ public class AutoFillTest : BootstrapBlazorTestBase
         Assert.Equal(2, cut.FindAll(".dropdown-item").Count);
     }
 
+    [Fact]
+    public void OnGetDisplayText_Ok()
+    {
+        var cut = Context.RenderComponent<AutoFill<Foo>>(pb =>
+        {
+            pb.Add(a => a.Value, Model);
+            pb.Add(a => a.Items, Items);
+            pb.Add(a => a.OnGetDisplayText, foo => foo.Name ?? "");
+        });
+        var input = cut.Find("input");
+        Assert.Equal("张三 1000", input.Attributes["value"]?.Value);
+    }
+
     [Fact]
     public void Debounce_Ok()
     {