diff --git a/demo/Semi.Avalonia.Demo/Pages/DataGridDemo.axaml b/demo/Semi.Avalonia.Demo/Pages/DataGridDemo.axaml
index cb1308e..ba7f847 100644
--- a/demo/Semi.Avalonia.Demo/Pages/DataGridDemo.axaml
+++ b/demo/Semi.Avalonia.Demo/Pages/DataGridDemo.axaml
@@ -167,6 +167,7 @@
                     Grid.Row="2"
                     Margin="12,0,12,12"
                     HorizontalAlignment="Right"
+                    Command="{Binding AddCommand}"
                     Content="Add" />
             </Grid>
         </TabItem>
diff --git a/demo/Semi.Avalonia.Demo/ViewModels/DataGridDemoViewModel.cs b/demo/Semi.Avalonia.Demo/ViewModels/DataGridDemoViewModel.cs
index a459d39..bb8fa4b 100644
--- a/demo/Semi.Avalonia.Demo/ViewModels/DataGridDemoViewModel.cs
+++ b/demo/Semi.Avalonia.Demo/ViewModels/DataGridDemoViewModel.cs
@@ -4,6 +4,7 @@ using System.Collections.ObjectModel;
 using System.Linq;
 using Avalonia.Collections;
 using CommunityToolkit.Mvvm.ComponentModel;
+using CommunityToolkit.Mvvm.Input;
 
 namespace Semi.Avalonia.Demo.ViewModels;
 
@@ -14,6 +15,8 @@ public class DataGridDemoViewModel: ObservableObject
     public DataGridCollectionView GridData2 { get; set; }
     
     public ObservableCollection<SongViewModel> GridData3 { get; set; }
+    
+    public RelayCommand AddCommand { get; set; }
 
     public DataGridDemoViewModel()
     {
@@ -28,6 +31,12 @@ public class DataGridDemoViewModel: ObservableObject
             CountOfComment = a.CountOfComment,
             IsSelected = false
         }));
+        AddCommand = new RelayCommand(Add);
+    }
+
+    private void Add()
+    {
+        GridData3.Add(new SongViewModel());
     }
 }
 
diff --git a/src/Semi.Avalonia.DataGrid/Semi.Avalonia.DataGrid.csproj b/src/Semi.Avalonia.DataGrid/Semi.Avalonia.DataGrid.csproj
index 467fe7f..6ca1b4f 100644
--- a/src/Semi.Avalonia.DataGrid/Semi.Avalonia.DataGrid.csproj
+++ b/src/Semi.Avalonia.DataGrid/Semi.Avalonia.DataGrid.csproj
@@ -1,10 +1,11 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
     <Import Project="../Package.props"/>
-
+    
     <PropertyGroup>
         <Title>Semi.Avalonia.DataGrid</Title>
         <PackageReleaseNotes>Update to 11.0.1</PackageReleaseNotes>
+        <Version>11.0.1.1</Version>
     </PropertyGroup>
 
     <ItemGroup>