diff --git a/BallanceTasEditor/BallanceTasEditor/Backend/AppSettings.cs b/BallanceTasEditor/BallanceTasEditor/Backend/AppSettings.cs
new file mode 100644
index 0000000..0e2a4d2
--- /dev/null
+++ b/BallanceTasEditor/BallanceTasEditor/Backend/AppSettings.cs
@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace BallanceTasEditor.Backend {
+
+    public enum EditorLayoutKind {
+        Horizontal, Vertical
+    }
+
+    public class AppSettings {
+
+
+
+        public EditorLayoutKind EditorLayout { get; set; }
+
+    }
+}
diff --git a/BallanceTasEditor/BallanceTasEditor/Backend/TasFrame.cs b/BallanceTasEditor/BallanceTasEditor/Backend/TasFrame.cs
index 3a907b0..d3c38c1 100644
--- a/BallanceTasEditor/BallanceTasEditor/Backend/TasFrame.cs
+++ b/BallanceTasEditor/BallanceTasEditor/Backend/TasFrame.cs
@@ -156,6 +156,14 @@ namespace BallanceTasEditor.Backend {
             raw.KeyFlags = m_KeyFlags;
         }
 
+        /// <summary>
+        /// 返回自身的克隆（深拷贝）。
+        /// </summary>
+        /// <returns>自身的克隆。</returns>
+        public TasFrame Clone() {
+            return new TasFrame(m_TimeDelta, m_KeyFlags);
+        }
+
         /// <summary>
         /// 该帧的持续时间（以秒为单位）。
         /// </summary>
diff --git a/BallanceTasEditor/BallanceTasEditor/Backend/TasStorage.cs b/BallanceTasEditor/BallanceTasEditor/Backend/TasStorage.cs
index 7cc1d3c..675c34c 100644
--- a/BallanceTasEditor/BallanceTasEditor/Backend/TasStorage.cs
+++ b/BallanceTasEditor/BallanceTasEditor/Backend/TasStorage.cs
@@ -10,11 +10,31 @@ using System.Threading.Tasks;
 
 namespace BallanceTasEditor.Backend {
     public static class TasStorage {
+
+        /// <summary>
+        /// Initialize given TAS sequence with given count frame which has given FPS.
+        /// </summary>
+        /// <param name="seq">The TAS sequence to initialize.</param>
+        /// <param name="count">The count of frame.</param>
+        /// <param name="fps">The FPS of frame.</param>
+        public static void Init(ITasSequence seq, int count, uint fps) {
+            var frame = TasFrame.FromFps(fps);
+            var iter = Enumerable.Range(0, count).Select((_) => frame.Clone());
+            var exactSizeIter = new ExactSizeEnumerableAdapter<TasFrame>(iter, count);
+            seq.Insert(seq.GetCount(), exactSizeIter);
+        }
+
         internal const int SIZEOF_I32 = sizeof(int);
         internal const int SIZEOF_F32 = sizeof(float);
         internal const int SIZEOF_U32 = sizeof(uint);
         internal const int SIZEOF_RAW_TAS_FRAME = SIZEOF_F32 + SIZEOF_U32;
 
+        /// <summary>
+        /// Save given TAS sequence into given file path.
+        /// </summary>
+        /// <param name="filepath">The path to file for saving.</param>
+        /// <param name="seq">The TAS sequence to save.</param>
+        /// <exception cref="Exception">Any exception occurs when saving.</exception>
         public static void Save(string filepath, ITasSequence seq) {
             using (var fs = new FileStream(filepath, FileMode.OpenOrCreate, FileAccess.Write, FileShare.None)) {
                 Save(fs, seq);
@@ -22,6 +42,12 @@ namespace BallanceTasEditor.Backend {
             }
         }
 
+        /// <summary>
+        /// Save given TAS sequence into given file stream.
+        /// </summary>
+        /// <param name="fs">The file stream for saving.</param>
+        /// <param name="seq">The TAS sequence to save.</param>
+        /// <exception cref="Exception">Any exception occurs when saving.</exception>
         public static void Save(Stream fs, ITasSequence seq) {
             var totalByte = seq.GetCount() * SIZEOF_RAW_TAS_FRAME;
             fs.Write(BitConverter.GetBytes(totalByte), 0, SIZEOF_I32);
@@ -46,6 +72,12 @@ namespace BallanceTasEditor.Backend {
             //zo.Close();
         }
 
+        /// <summary>
+        /// Load TAS sequence from given file path into given sequence.
+        /// </summary>
+        /// <param name="filepath">The path to file for loading.</param>
+        /// <param name="seq">The TAS sequence to load.</param>
+        /// <exception cref="Exception">Any exception occurs when loading.</exception>
         public static void Load(string filepath, ITasSequence seq) {
             using (var fs = new FileStream(filepath, FileMode.Open, FileAccess.Read, FileShare.Read)) {
                 Load(fs, seq);
@@ -53,6 +85,12 @@ namespace BallanceTasEditor.Backend {
             }
         }
 
+        /// <summary>
+        /// Load TAS sequence from given file stream into given sequence.
+        /// </summary>
+        /// <param name="fs">The file stream for loading.</param>
+        /// <param name="seq">The TAS sequence to load.</param>
+        /// <exception cref="Exception">Any exception occurs when loading.</exception>
         public static void Load(Stream fs, ITasSequence seq) {
             // Read total bytes
             var lenCache = new byte[SIZEOF_I32];
diff --git a/BallanceTasEditor/BallanceTasEditor/BallanceTasEditor.csproj b/BallanceTasEditor/BallanceTasEditor/BallanceTasEditor.csproj
index 54e2f8f..f14dc7d 100644
--- a/BallanceTasEditor/BallanceTasEditor/BallanceTasEditor.csproj
+++ b/BallanceTasEditor/BallanceTasEditor/BallanceTasEditor.csproj
@@ -17,9 +17,12 @@
     <PackageReference Include="CommunityToolkit.HighPerformance" Version="8.4.0" />
     <PackageReference Include="CommunityToolkit.Mvvm" Version="8.2.1" />
     <PackageReference Include="DotNetZip" Version="1.9.1.8" />
+    <PackageReference Include="Microsoft.Xaml.Behaviors.Wpf" Version="1.1.142" />
+    <PackageReference Include="System.Configuration.ConfigurationManager" Version="10.0.5" />
   </ItemGroup>
 
   <ItemGroup>
+    <Folder Include="Frontend\Models\" />
     <Folder Include="Frontend\Utils\" />
   </ItemGroup>
 
diff --git a/BallanceTasEditor/BallanceTasEditor/Frontend/Behaviors/ConfirmCloseBehavior.cs b/BallanceTasEditor/BallanceTasEditor/Frontend/Behaviors/ConfirmCloseBehavior.cs
new file mode 100644
index 0000000..674b2c5
--- /dev/null
+++ b/BallanceTasEditor/BallanceTasEditor/Frontend/Behaviors/ConfirmCloseBehavior.cs
@@ -0,0 +1,49 @@
+using Microsoft.Xaml.Behaviors;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+using System.Windows.Documents;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using System.Windows.Navigation;
+using System.Windows.Shapes;
+
+namespace BallanceTasEditor.Frontend.Behaviors {
+    public class ConfirmCloseBehavior : Behavior<Window> {
+
+        public ICommand ConfirmCommand {
+            get { return (ICommand)GetValue(ConfirmCommandProperty); }
+            set { SetValue(ConfirmCommandProperty, value); }
+        }
+
+        // Using a DependencyProperty as the backing store for ConfirmCommand.  This enables animation, styling, binding, etc...
+        public static readonly DependencyProperty ConfirmCommandProperty =
+            DependencyProperty.Register("ConfirmCommand", typeof(ICommand), typeof(ConfirmCloseBehavior));
+
+
+        protected override void OnAttached() {
+            base.OnAttached();
+            AssociatedObject.Closing += OnClosing;
+        }
+
+        protected override void OnDetaching() {
+            AssociatedObject.Closing -= OnClosing;
+            base.OnDetaching();
+        }
+
+        private void OnClosing(object? sender, CancelEventArgs e) {
+            if (ConfirmCommand?.CanExecute(null) == true) {
+                // 假设Command返回 bool 或通过回调/事件通知结果
+                bool allowClose = (Func<object?, bool>)ConfirmCommand.Execute(null);
+                e.Cancel = !allowClose;
+            }
+        }
+    }
+}
diff --git a/BallanceTasEditor/BallanceTasEditor/Frontend/ViewModels/IDialogService.cs b/BallanceTasEditor/BallanceTasEditor/Frontend/ViewModels/IDialogService.cs
new file mode 100644
index 0000000..5fd4b7a
--- /dev/null
+++ b/BallanceTasEditor/BallanceTasEditor/Frontend/ViewModels/IDialogService.cs
@@ -0,0 +1,47 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace BallanceTasEditor.Frontend.ViewModels {
+
+    public interface IDialogService {
+        NewFileDialogResult? ShowNewFileDialog();
+        OpenFileDialogResult? ShowOpenFileDialog();
+        void ShowOpenFileFailedDialog(Exception e);
+        SaveFileDialogResult? ShowSaveFileDialog();
+        void ShowSaveFileFailedDialog(Exception e);
+        bool ShowConfirmCloseFileDialog(string message);
+        bool ShowConfirmExitWhenOpeningFileDialog();
+        bool ShowFileChangedDialog();
+        GotoDialogResult? ShowGotoDialog();
+        EditFpsDialogResult? ShowEditFpsDialog();
+        AddFrameDialogResult? ShowAddFrameDialog();
+        PreferenceDialogResult? ShowPreferenceDialog();
+        void ShowAboutDialog();
+    }
+
+    public record NewFileDialogResult {
+        public required uint Fps { get; init; }
+        public required int Count { get; init; }
+    }
+
+    public record OpenFileDialogResult {
+        public required string Path { get; init; }
+    }
+
+    public record SaveFileDialogResult {
+        public required string Path { get; init; }
+    }
+
+    public record GotoDialogResult { }
+
+    public record EditFpsDialogResult { }
+
+    public record AddFrameDialogResult { }
+
+    public record PreferenceDialogResult { }
+
+
+}
diff --git a/BallanceTasEditor/BallanceTasEditor/Frontend/ViewModels/MainWindow.cs b/BallanceTasEditor/BallanceTasEditor/Frontend/ViewModels/MainWindow.cs
new file mode 100644
index 0000000..2053f7d
--- /dev/null
+++ b/BallanceTasEditor/BallanceTasEditor/Frontend/ViewModels/MainWindow.cs
@@ -0,0 +1,156 @@
+using CommunityToolkit.Mvvm.ComponentModel;
+using CommunityToolkit.Mvvm.Input;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace BallanceTasEditor.Frontend.ViewModels {
+    public partial class MainWindow : ObservableObject {
+        public MainWindow(IDialogService dialogService) {
+            m_DialogService = dialogService;
+
+            this.TasFile = null;
+            this.TasFilePath = null;
+        }
+
+        private IDialogService m_DialogService;
+
+        #region File Operation
+
+        [ObservableProperty]
+        [NotifyPropertyChangedFor(nameof(WindowTitle))]
+        [NotifyCanExecuteChangedFor(nameof(NewFileCommand))]
+        [NotifyCanExecuteChangedFor(nameof(OpenFileCommand))]
+        [NotifyCanExecuteChangedFor(nameof(SaveFileCommand))]
+        [NotifyCanExecuteChangedFor(nameof(SaveFileAsCommand))]
+        [NotifyCanExecuteChangedFor(nameof(CloseFileCommand))]
+        private Backend.ITasSequence? tasFile;
+        [ObservableProperty]
+        [NotifyPropertyChangedFor(nameof(WindowTitle))]
+        private string? tasFilePath;
+
+        [RelayCommand(CanExecute = nameof(CanNewFile))]
+        private void NewFile() {
+            // Request new file properties
+            var dialog = m_DialogService.ShowNewFileDialog();
+            if (dialog is null) return;
+
+            // Initialize sequence
+            var seq = new Backend.ListTasSequence();
+            // Initialize items
+            Backend.TasStorage.Init(seq, dialog.Count, dialog.Fps);
+            // Set members
+            this.TasFile = seq;
+            this.TasFilePath = null;
+        }
+
+        private bool CanNewFile() {
+            return this.TasFile is null;
+        }
+
+        [RelayCommand(CanExecute = nameof(CanOpenFile))]
+        private void OpenFile() {
+            // Request file path
+            var dialog = m_DialogService.ShowOpenFileDialog();
+            if (dialog is null) return;
+
+            // Initialize sequence
+            var seq = new Backend.ListTasSequence();
+            // Load into sequence
+            try {
+                Backend.TasStorage.Load(dialog.Path, seq);
+            } catch (Exception e) {
+                m_DialogService.ShowOpenFileFailedDialog(e);
+                return;
+            }
+            // Set members
+            this.TasFile = seq;
+            this.TasFilePath = dialog.Path;
+        }
+
+        private bool CanOpenFile() {
+            return this.TasFile is null;
+        }
+
+        [RelayCommand(CanExecute = nameof(CanSaveFile))]
+        private void SaveFile() {
+            // If there is no associated file path,
+            // it means that this file is not stored on disk,
+            // We must make a request to user for fetching it.
+            string? filePath = this.TasFilePath;
+            if (filePath is null) {
+                var dialog = m_DialogService.ShowSaveFileDialog();
+                if (dialog is null) return;
+                filePath = dialog.Path;
+            }
+
+            // Save file
+            try {
+                Backend.TasStorage.Save(filePath, this.TasFile.Unwrap());
+            } catch (Exception e) {
+                m_DialogService.ShowSaveFileFailedDialog(e);
+                return;
+            }
+            // Update member
+            this.TasFilePath = filePath;
+        }
+
+        private bool CanSaveFile() {
+            return this.TasFile is not null;
+        }
+
+        [RelayCommand(CanExecute = nameof(CanSaveFileAs))]
+        private void SaveFileAs() {
+            // We always request a new path when saving as
+            var dialog = m_DialogService.ShowSaveFileDialog();
+            if (dialog is null) return;
+
+            // Save file
+            try {
+                Backend.TasStorage.Save(dialog.Path, this.TasFile.Unwrap());
+            } catch (Exception e) {
+                m_DialogService.ShowSaveFileFailedDialog(e);
+                return;
+            }
+            // Set file path
+            TasFilePath = dialog.Path;
+        }
+        
+        private bool CanSaveFileAs() {
+            return this.TasFile is not null;
+        }
+
+        [RelayCommand(CanExecute = nameof(CanCloseFile))]
+        private void CloseFile() {
+            this.TasFile = null;
+            this.TasFilePath = null;
+        }
+
+        private bool CanCloseFile() {
+            return this.TasFile is not null;
+        }
+
+        #endregion
+
+        #region UI Only
+
+        public string WindowTitle {
+            get {
+                if (TasFile is null) {
+                    return "Ballance TAS Editor";
+                } else {
+                    if (TasFilePath is null) {
+                        return "Ballance TAS Editor - [Untitled]";
+                    } else {
+                        return $"Ballance TAS Editor - [{TasFilePath}]";
+                    }
+                }
+            }
+        }
+
+        #endregion
+
+    }
+}
diff --git a/BallanceTasEditor/BallanceTasEditor/Frontend/ViewModels/NewFileDialog.cs b/BallanceTasEditor/BallanceTasEditor/Frontend/ViewModels/NewFileDialog.cs
index 31bd49f..9f73dc2 100644
--- a/BallanceTasEditor/BallanceTasEditor/Frontend/ViewModels/NewFileDialog.cs
+++ b/BallanceTasEditor/BallanceTasEditor/Frontend/ViewModels/NewFileDialog.cs
@@ -9,11 +9,6 @@ using System.Threading.Tasks;
 
 namespace BallanceTasEditor.Frontend.ViewModels {
 
-    public struct NewFileDialogResult {
-        public int Count { get; set; }
-        public float DeltaTime { get; set; }
-    }
-
     public partial class NewFileDialog : ObservableValidator {
         public NewFileDialog() {
             Count = 10000.ToString();
diff --git a/BallanceTasEditor/BallanceTasEditor/Frontend/Views/DialogService.cs b/BallanceTasEditor/BallanceTasEditor/Frontend/Views/DialogService.cs
new file mode 100644
index 0000000..03d1da3
--- /dev/null
+++ b/BallanceTasEditor/BallanceTasEditor/Frontend/Views/DialogService.cs
@@ -0,0 +1,139 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+
+namespace BallanceTasEditor.Frontend.Views {
+
+    public class DialogService : ViewModels.IDialogService {
+        public DialogService(Window parent) {
+            m_Parent = parent;
+        }
+
+        private readonly Window m_Parent;
+
+        public ViewModels.NewFileDialogResult? ShowNewFileDialog() {
+            var dialog = new NewFileDialog();
+            dialog.Owner = m_Parent;
+            if (dialog.ShowDialog() is true) {
+                // TODO: Finish result extraction
+                return new ViewModels.NewFileDialogResult() { Count = 0, Fps = 60 };
+            } else {
+                return null;
+            }
+        }
+
+        public ViewModels.OpenFileDialogResult? ShowOpenFileDialog() {
+            Microsoft.Win32.OpenFileDialog op = new Microsoft.Win32.OpenFileDialog();
+            op.RestoreDirectory = true;
+            op.Multiselect = false;
+            op.Filter = "TAS file(*.tas)|*.tas|All file(*.*)|*.*";
+            if (op.ShowDialog() is true) {
+                return new ViewModels.OpenFileDialogResult() { Path = op.FileName };
+            } else {
+                return null;
+            }
+        }
+
+        public void ShowOpenFileFailedDialog(Exception e) {
+            MessageBox.Show("Fail to open file. This file might not a legal TAS file." + e.Message,
+                "Error",
+                MessageBoxButton.OK, MessageBoxImage.Error);
+        }
+
+        public ViewModels.SaveFileDialogResult? ShowSaveFileDialog() {
+            Microsoft.Win32.SaveFileDialog op = new Microsoft.Win32.SaveFileDialog();
+            op.RestoreDirectory = true;
+            op.Filter = "TAS file(*.tas)|*.tas|All file(*.*)|*.*";
+            if (op.ShowDialog() is true) {
+                return new ViewModels.SaveFileDialogResult() { Path = op.FileName };
+            } else {
+                return null;
+            }
+        }
+
+        public void ShowSaveFileFailedDialog(Exception e) {
+            MessageBox.Show(
+                "Fail to save file." + e.Message,
+                "Error",
+                MessageBoxButton.OK, MessageBoxImage.Error);
+        }
+
+        public bool ShowConfirmCloseFileDialog(string message) {
+            var rv = MessageBox.Show(
+                "Do you want to close this TAS file? All changes will not be saved.",
+                "File Is Not Saved",
+                MessageBoxButton.YesNo, MessageBoxImage.Warning);
+            return rv == MessageBoxResult.Yes;
+        }
+
+        public bool ShowConfirmExitWhenOpeningFileDialog() {
+            var rv = MessageBox.Show(
+                "File is not closed. Do you want to just quit? All changes will not be saved.",
+                "File Is Not Saved",
+                MessageBoxButton.YesNo, MessageBoxImage.Warning);
+            return rv == MessageBoxResult.Yes;
+        }
+
+        public bool ShowFileChangedDialog() {
+            var rv = MessageBox.Show(
+                "File is changed. Do you want to reload it?",
+                "File Is Changed",
+                MessageBoxButton.YesNo, MessageBoxImage.Question);
+            return rv == MessageBoxResult.Yes;
+        }
+
+        public ViewModels.GotoDialogResult? ShowGotoDialog() {
+            var dialog = new GotoDialog();
+            dialog.Owner = m_Parent;
+            if (dialog.ShowDialog() is true) {
+                // TODO: Finish result extraction
+                return new ViewModels.GotoDialogResult();
+            } else {
+                return null;
+            }
+        }
+
+        public ViewModels.EditFpsDialogResult? ShowEditFpsDialog() {
+            var dialog = new EditFpsDialog();
+            dialog.Owner = m_Parent;
+            if (dialog.ShowDialog() is true) {
+                // TODO: Finish result extraction
+                return new ViewModels.EditFpsDialogResult();
+            } else {
+                return null;
+            }
+        }
+
+        public ViewModels.AddFrameDialogResult? ShowAddFrameDialog() {
+            var dialog = new AddFrameDialog();
+            dialog.Owner = m_Parent;
+            if (dialog.ShowDialog() is true) {
+                // TODO: Finish result extraction
+                return new ViewModels.AddFrameDialogResult();
+            } else {
+                return null;
+            }
+        }
+
+        public ViewModels.PreferenceDialogResult? ShowPreferenceDialog() {
+            var dialog = new PreferenceDialog();
+            dialog.Owner = m_Parent;
+            if (dialog.ShowDialog() is true) {
+                // TODO: Finish result extraction
+                return new ViewModels.PreferenceDialogResult();
+            } else {
+                return null;
+            }
+        }
+
+        public void ShowAboutDialog() {
+            var dialog = new AboutDialog();
+            dialog.Owner = m_Parent;
+            dialog.ShowDialog();
+        }
+    }
+
+}
diff --git a/BallanceTasEditor/BallanceTasEditor/Frontend/Views/MainWindow.xaml b/BallanceTasEditor/BallanceTasEditor/Frontend/Views/MainWindow.xaml
index a367995..83bf885 100644
--- a/BallanceTasEditor/BallanceTasEditor/Frontend/Views/MainWindow.xaml
+++ b/BallanceTasEditor/BallanceTasEditor/Frontend/Views/MainWindow.xaml
@@ -5,8 +5,11 @@
         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
         xmlns:local="clr-namespace:BallanceTasEditor.Frontend.Views"
         xmlns:styles="clr-namespace:BallanceTasEditor.Frontend.Styles"
-        mc:Ignorable="d" WindowStartupLocation="CenterScreen"
-        Title="Ballance TAS Editor" Height="600" Width="800" Icon="/Frontend/Assets/App.ico">
+        xmlns:vm="clr-namespace:BallanceTasEditor.Frontend.ViewModels"
+        mc:Ignorable="d"
+        d:DataContext="{d:DesignInstance vm:MainWindow}"
+        WindowStartupLocation="CenterScreen"
+        Title="{Binding WindowTitle, Mode=OneWay}" Height="600" Width="800" Icon="/Frontend/Assets/App.ico">
     
     <Grid>
         <Grid.RowDefinitions>
@@ -44,14 +47,14 @@
             </Menu.Resources>
             
             <MenuItem Header="_File" Padding="5">
-                <MenuItem Header="_New File" Icon="{StaticResource IconNewFile}" InputGestureText="Ctrl+N" Click="MenuItem_Click_3"/>
-                <MenuItem Header="_Open File" Icon="{StaticResource IconOpenFile}" InputGestureText="Ctrl+O"/>
+                <MenuItem Header="_New File" Icon="{StaticResource IconNewFile}" InputGestureText="Ctrl+N" Command="{Binding NewFileCommand}"/>
+                <MenuItem Header="_Open File" Icon="{StaticResource IconOpenFile}" InputGestureText="Ctrl+O" Command="{Binding OpenFileCommand}"/>
                 <Separator/>
-                <MenuItem Header="_Save File" Icon="{StaticResource IconSaveFile}" InputGestureText="Ctrl+S"/>
-                <MenuItem Header="Save File as ..." Icon="{StaticResource IconSaveFileAs}"/>
+                <MenuItem Header="_Save File" Icon="{StaticResource IconSaveFile}" InputGestureText="Ctrl+S" Command="{Binding SaveFileCommand}"/>
+                <MenuItem Header="Save File as ..." Icon="{StaticResource IconSaveFileAs}" Command="{Binding SaveFileAsCommand}"/>
                 <MenuItem Header="Save File then _Run Game" Icon="{StaticResource IconSaveFileThenRunGame}" InputGestureText="B"/>
                 <Separator/>
-                <MenuItem Header="Close File" Icon="{StaticResource IconCloseFile}"/>
+                <MenuItem Header="Close File" Icon="{StaticResource IconCloseFile}" Command="{Binding CloseFileCommand}"/>
                 <MenuItem Header="Exit" Icon="{StaticResource IconExit}"/>
             </MenuItem>
             <MenuItem Header="_Edit" Padding="5">
@@ -62,20 +65,20 @@
                 <MenuItem Header="Previous Item" Icon="{StaticResource IconPreviousItem}" InputGestureText="S"/>
                 <MenuItem Header="Next Page" Icon="{StaticResource IconNextPage}" InputGestureText="D"/>
                 <MenuItem Header="Next Item" Icon="{StaticResource IconNextItem}" InputGestureText="F"/>
-                <MenuItem Header="Goto Item" Icon="{StaticResource IconGoto}" InputGestureText="G" Click="MenuItem_Click_4"/>
+                <MenuItem Header="Goto Item" Icon="{StaticResource IconGoto}" InputGestureText="G"/>
                 <Separator/>
                 <MenuItem Header="Select Mode" Icon="{StaticResource IconSelectMode}"/>
                 <MenuItem Header="Fill Mode" Icon="{StaticResource IconFillMode}"/>
                 <MenuItem Header="Draw Mode" Icon="{StaticResource IconDrawMode}"/>
                 <Separator/>
                 <MenuItem Header="Clear Keys" Icon="{StaticResource IconClearKeys}"/>
-                <MenuItem Header="Uniform FPS" Icon="{StaticResource IconUniformFps}" Click="MenuItem_Click_5"/>
+                <MenuItem Header="Uniform FPS" Icon="{StaticResource IconUniformFps}"/>
                 <Separator/>
-                <MenuItem Header="Preference" Icon="{StaticResource IconPreference}" InputGestureText="Ctrl+P" Click="MenuItem_Click"/>
+                <MenuItem Header="Preference" Icon="{StaticResource IconPreference}" InputGestureText="Ctrl+P"/>
             </MenuItem>
             <MenuItem Header="_Help" Padding="5">
                 <MenuItem Header="Report Bug" Icon="{StaticResource IconReportBug}"/>
-                <MenuItem Header="About" Icon="{StaticResource IconAbout}" Click="MenuItem_Click_1"/>
+                <MenuItem Header="About" Icon="{StaticResource IconAbout}"/>
             </MenuItem>
         </Menu>
 
@@ -133,14 +136,14 @@
                         <MenuItem Header="Paste after This" Icon="{StaticResource IconPaste}" InputGestureText="Ctrl+V"/>
                         <MenuItem Header="Paste before This"/>
                         <Separator/>
-                        <MenuItem Header="Delete This" Icon="{StaticResource IconDelete}"/>
+                        <MenuItem Header="Delete" Icon="{StaticResource IconDelete}"/>
                         <MenuItem Header="Delete after This" InputGestureText="Del"/>
                         <MenuItem Header="Delete before This" InputGestureText="Backspace"/>
                         <Separator/>
-                        <MenuItem Header="Add after This" Icon="{StaticResource IconAdd}" Click="MenuItem_Click_2"/>
+                        <MenuItem Header="Add after This" Icon="{StaticResource IconAdd}"/>
                         <MenuItem Header="Add before This"/>
                         <Separator/>
-                        <MenuItem Header="Set FPS" Icon="{StaticResource IconFps}" Click="MenuItem_Click_6"/>
+                        <MenuItem Header="Set FPS" Icon="{StaticResource IconFps}"/>
                     </ContextMenu>
                 </local:TasViewer.ContextMenu>
             </local:TasViewer>
@@ -150,8 +153,6 @@
             <!-- 这玩意要逆序排列才能达到我想要的需求也是奇葩 -->
             <StatusBarItem Content="v2.0 stable" DockPanel.Dock="Right" Foreground="Gray" FontStyle="Italic"/>
             <Separator DockPanel.Dock="Right"/>
-            <StatusBarItem Content="$PasteMode" DockPanel.Dock="Right"/>
-            <Separator DockPanel.Dock="Right"/>
             <StatusBarItem Content="$Selection" DockPanel.Dock="Right"/>
             <Separator DockPanel.Dock="Right"/>
             <StatusBarItem Content="$ToolMode" DockPanel.Dock="Right"/>
diff --git a/BallanceTasEditor/BallanceTasEditor/Frontend/Views/MainWindow.xaml.cs b/BallanceTasEditor/BallanceTasEditor/Frontend/Views/MainWindow.xaml.cs
index 62ea1ce..2288607 100644
--- a/BallanceTasEditor/BallanceTasEditor/Frontend/Views/MainWindow.xaml.cs
+++ b/BallanceTasEditor/BallanceTasEditor/Frontend/Views/MainWindow.xaml.cs
@@ -20,48 +20,8 @@ namespace BallanceTasEditor.Frontend.Views {
     public partial class MainWindow : Window {
         public MainWindow() {
             InitializeComponent();
-        }
-
-        private void MenuItem_Click_3(object sender, RoutedEventArgs e) {
-            var dialog = new NewFileDialog();
-            dialog.Owner = this;
-            dialog.ShowDialog();
-        }
-
-        private void MenuItem_Click(object sender, RoutedEventArgs e) {
-            var dialog = new PreferenceDialog();
-            dialog.Owner = this;
-            dialog.ShowDialog();
-        }
-
-        private void MenuItem_Click_1(object sender, RoutedEventArgs e) {
-            var dialog = new AboutDialog();
-            dialog.Owner = this;
-            dialog.ShowDialog();
-        }
-
-        private void MenuItem_Click_4(object sender, RoutedEventArgs e) {
-            var dialog =new GotoDialog();
-            dialog.Owner = this;
-            dialog.ShowDialog();
-        }
-
-        private void MenuItem_Click_5(object sender, RoutedEventArgs e) {
-            var dialog = new EditFpsDialog();
-            dialog.Owner = this;
-            dialog.ShowDialog();
-        }
-
-        private void MenuItem_Click_6(object sender, RoutedEventArgs e) {
-            var dialog = new EditFpsDialog();
-            dialog.Owner = this;
-            dialog.ShowDialog();
-        }
-
-        private void MenuItem_Click_2(object sender, RoutedEventArgs e) {
-            var dialog = new AddFrameDialog();
-            dialog.Owner = this;
-            dialog.ShowDialog();
+            var dialogService = new DialogService(this);
+            this.DataContext = new ViewModels.MainWindow(dialogService);
         }
 
     }
diff --git a/BallanceTasEditor/BallanceTasEditor/Backend/NullableExtension.cs b/BallanceTasEditor/BallanceTasEditor/NullableExtension.cs
similarity index 92%
rename from BallanceTasEditor/BallanceTasEditor/Backend/NullableExtension.cs
rename to BallanceTasEditor/BallanceTasEditor/NullableExtension.cs
index b2bfd21..ffdb648 100644
--- a/BallanceTasEditor/BallanceTasEditor/Backend/NullableExtension.cs
+++ b/BallanceTasEditor/BallanceTasEditor/NullableExtension.cs
@@ -5,7 +5,7 @@ using System.Runtime.CompilerServices;
 using System.Text;
 using System.Threading.Tasks;
 
-namespace BallanceTasEditor.Backend {
+namespace BallanceTasEditor {
     public static class NullableExtensions {
         public static T Unwrap<T>(this T? value, [CallerArgumentExpression(nameof(value))] string? paramName = null) where T : class {
             ArgumentNullException.ThrowIfNull(value, paramName);
diff --git a/BallanceTasEditor/BallanceTasEditor/app.manifest b/BallanceTasEditor/BallanceTasEditor/app.manifest
index 9ce67d2..20b4817 100644
--- a/BallanceTasEditor/BallanceTasEditor/app.manifest
+++ b/BallanceTasEditor/BallanceTasEditor/app.manifest
@@ -40,7 +40,7 @@
       <!--<supportedOS Id="{1f676c76-80e1-4239-95bb-83d0f6d0da78}" />-->
 
       <!-- Windows 10 -->
-      <!--<supportedOS Id="{8e0f7a12-bfb3-4fe8-b9a5-48fd50a15a9a}" />-->
+      <supportedOS Id="{8e0f7a12-bfb3-4fe8-b9a5-48fd50a15a9a}" />
 
     </application>
   </compatibility>