diff --git a/CPF.Toolkit.Demo/MainView.cs b/CPF.Toolkit.Demo/MainView.cs
index ea82b52..b385519 100644
--- a/CPF.Toolkit.Demo/MainView.cs
+++ b/CPF.Toolkit.Demo/MainView.cs
@@ -65,6 +65,16 @@ namespace CPF.Toolkit.Demo
                         Content = "关闭窗体",
                         Commands = { { nameof(Button.Click),(s,e) => vm.Test() } }
                     },
+                    new Button
+                    {
+                        Content = "关闭窗体",
+                        Commands = { { nameof(Button.Click),(s,e) => vm.Test() } }
+                    },
+                    new Button
+                    {
+                        Content = "loading",
+                        Commands = { { nameof(Button.Click),(s,e) => vm.LoadingTest() } }
+                    },
                 }
             }));
         }
diff --git a/CPF.Toolkit.Demo/MainViewModel.cs b/CPF.Toolkit.Demo/MainViewModel.cs
index 0aa3915..efe9c4d 100644
--- a/CPF.Toolkit.Demo/MainViewModel.cs
+++ b/CPF.Toolkit.Demo/MainViewModel.cs
@@ -24,5 +24,18 @@ namespace CPF.Toolkit.Demo
             e.Cancel = !this.isClose;
             base.OnClose(e);
         }
+
+        public async void LoadingTest()
+        {
+            await this.ShowLoading(Task.Delay(3000));
+            this.Dialog.Sucess("test");
+
+            //var result = await this.ShowLoading(async () =>
+            //{
+            //    await Task.Delay(5000);
+            //    return "test";
+            //});
+            //this.Dialog.Sucess(result);
+        }
     }
 }
diff --git a/CPF.Toolkit/CPF.Toolkit.csproj b/CPF.Toolkit/CPF.Toolkit.csproj
index a49aac9..4e089e0 100644
--- a/CPF.Toolkit/CPF.Toolkit.csproj
+++ b/CPF.Toolkit/CPF.Toolkit.csproj
@@ -21,5 +21,7 @@
   <ItemGroup>
     <ProjectReference Include="..\CPF\CPF.csproj" />
   </ItemGroup>
-
+	<ItemGroup>
+		<PackageReference Include="Microsoft.CSharp" Version="4.7.0" />
+	</ItemGroup>
 </Project>
diff --git a/CPF.Toolkit/Dialogs/DialogView.cs b/CPF.Toolkit/Dialogs/DialogView.cs
index d1a76ee..8a752b0 100644
--- a/CPF.Toolkit/Dialogs/DialogView.cs
+++ b/CPF.Toolkit/Dialogs/DialogView.cs
@@ -97,38 +97,25 @@ namespace CPF.Toolkit.Dialogs
                             { nameof(TextBox.Text),nameof(Text),this,BindingMode.OneWay}
                         }
                     }.Assign(out var textBox),
-                    //new Border
-                    //{
-                    //    Attacheds = { { Grid.RowIndex,2 } },
-                    //    BorderThickness = new Thickness(0,1,0,0),
-                    //    BorderType = BorderType.BorderThickness,
-                    //    BorderFill = "236,236,236",
-                    //    Size = SizeField.Fill,
-                    //    MarginBottom = 5,
-                    //},
                     new StackPanel
                     {
                         Height = "100%",
                         Attacheds = { { Grid.RowIndex,2 } },
                         MarginBottom = 4,
                         Orientation = Orientation.Horizontal,
-                    }.Assign(out var p),
+                    }
+                    .LoopCreate(this.Buttons.Length, i => new Button
+                    {
+                        Content = this.Buttons[i],
+                        MinWidth = this.Buttons.Length <= 1 ? 80 : 65,
+                        Background = "white",
+                        BorderFill = "236,236,236",
+                        Height = "95%",
+                        MarginRight = 5,
+                        Commands = { { nameof(Button.Click),(s,e) => this.DialogResult = i } }
+                    }),
                 }
             }));
-
-            this.Buttons.Select(x => new Button
-            {
-                Content = x,
-                MinWidth = this.Buttons.Length <= 1 ? 80 : 65,
-                Background = "white",
-                BorderFill = "236,236,236",
-                Height = "95%",
-                MarginRight = 5,
-            }).ToList().ForEach(c =>
-            {
-                p.Children.Add(c);
-                c.Click += Button_Click;
-            });
             textBox.TextChanged += TextBox_TextChanged;
         }
 
@@ -147,12 +134,6 @@ namespace CPF.Toolkit.Dialogs
             }
         }
 
-        private void Button_Click(object sender, RoutedEventArgs e)
-        {
-            this.DialogResult = (sender as Button).Content;
-            this.Close();
-        }
-
         protected override void OnKeyUp(KeyEventArgs e)
         {
             if (e.Key.Or(Keys.Enter, Keys.Space))
diff --git a/CPF.Toolkit/Dialogs/IClosable.cs b/CPF.Toolkit/Dialogs/IClosable.cs
index fec269a..374004d 100644
--- a/CPF.Toolkit/Dialogs/IClosable.cs
+++ b/CPF.Toolkit/Dialogs/IClosable.cs
@@ -8,7 +8,7 @@ namespace CPF.Toolkit.Dialogs
 {
     internal interface IClosable
     {
-        event EventHandler<bool?> Closable;
+        event EventHandler<object> Closable;
         void OnClosable(object sender, ClosingEventArgs e);
     }
 }
diff --git a/CPF.Toolkit/Dialogs/ILoading.cs b/CPF.Toolkit/Dialogs/ILoading.cs
new file mode 100644
index 0000000..ed8d6b0
--- /dev/null
+++ b/CPF.Toolkit/Dialogs/ILoading.cs
@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace CPF.Toolkit.Dialogs
+{
+    public interface ILoading
+    {
+        event Func<string, Task, Task<object>> ShowLoadingFunc;
+        event Func<string, Task,Task> ShowLoading;
+    }
+}
diff --git a/CPF.Toolkit/ViewManager.cs b/CPF.Toolkit/ViewManager.cs
index 3ff3f97..6eccb24 100644
--- a/CPF.Toolkit/ViewManager.cs
+++ b/CPF.Toolkit/ViewManager.cs
@@ -3,6 +3,7 @@ using CPF.Toolkit.Dialogs;
 using System;
 using System.Collections.Generic;
 using System.Text;
+using System.Threading.Tasks;
 
 namespace CPF.Toolkit
 {
@@ -36,7 +37,42 @@ namespace CPF.Toolkit
                 {
                     dialog.Dialog = new DialogService(view);
                 }
+                if (view.DataContext is ILoading loading)
+                {
+                    loading.ShowLoadingFunc += async (message, task) =>
+                    {
+                        var loadingBox = new LoadingBox { Message = message };
+                        var layer = new LayerDialog
+                        {
+                            Name = "loadingDialog",
+                            Content = loadingBox,
+                            ShowCloseButton = false,
+                            Background = null,
+                        };
+                        layer.ShowDialog(view);
+                        dynamic t = task;
+                        var result = await t;
+                        loadingBox.Invoke(layer.CloseDialog);
+                        return (object)result;
+                    };
+                    loading.ShowLoading += async (message, task) =>
+                    {
+                        var loadingBox = new LoadingBox { Message = message };
+                        var layer = new LayerDialog
+                        {
+                            Name = "loadingDialog",
+                            Content = loadingBox,
+                            ShowCloseButton = false,
+                            Background = null,
+                        };
+                        layer.ShowDialog(view);
+                        await task;
+                        loadingBox.Invoke(layer.CloseDialog);
+                    };
+                }
             }
+
+            
         }
 
         private static void View_Closing(object sender, ClosingEventArgs e)
diff --git a/CPF.Toolkit/ViewModelBase.cs b/CPF.Toolkit/ViewModelBase.cs
index 5529bbf..34a2d2b 100644
--- a/CPF.Toolkit/ViewModelBase.cs
+++ b/CPF.Toolkit/ViewModelBase.cs
@@ -3,18 +3,24 @@ using CPF.Toolkit.Dialogs;
 using System;
 using System.Collections.Generic;
 using System.Text;
+using System.Threading.Tasks;
 
 namespace CPF.Toolkit
 {
-    public class ViewModelBase : ObservableObject, IClosable, IDialog
+    public class ViewModelBase : ObservableObject, IClosable, IDialog, ILoading
     {
-        event EventHandler<bool?> _close;
+        event EventHandler<object> _close;
+        event Func<string, Task, Task<object>> _showLoadingFunc;
+        event Func<string, Task, Task> _showLading;
+        event EventHandler<object> IClosable.Closable { add => this._close += value; remove => this._close -= value; }
+        event Func<string, Task, Task<object>> ILoading.ShowLoadingFunc { add => this._showLoadingFunc += value; remove => this._showLoadingFunc -= value; }
+        event Func<string, Task, Task> ILoading.ShowLoading { add => this._showLading += value; remove => this._showLading -= value; }
+
+        void IClosable.OnClosable(object sender, ClosingEventArgs e) => this.OnClose(e);
 
         public IDialogService Dialog { get; set; }
 
-        event EventHandler<bool?> IClosable.Closable { add => this._close += value; remove => this._close -= value; }
-
-        protected void Close(bool? dialogResult = null)
+        protected void Close(object dialogResult = null)
         {
             if (this._close == null)
             {
@@ -25,6 +31,17 @@ namespace CPF.Toolkit
 
         protected virtual void OnClose(ClosingEventArgs e) { }
 
-        void IClosable.OnClosable(object sender, ClosingEventArgs e) => this.OnClose(e);
+        protected async Task ShowLoading(Task task)
+        {
+            if (this._showLading == null) throw new ArgumentNullException();
+            await this._showLading.Invoke("加载中……", task);
+        }
+
+        protected async Task<T> ShowLoading<T>(Func<Task<T>> task)
+        {
+            if (this._showLoadingFunc == null) throw new ArgumentNullException();
+            var result = await this._showLoadingFunc.Invoke("加载中……", task.Invoke());
+            return (T)result;
+        }
     }
 }