diff --git a/WPF基础-5-DockPanel3对话框/App.xaml b/WPF基础-5-DockPanel3对话框/App.xaml
new file mode 100644
index 0000000..b814c46
--- /dev/null
+++ b/WPF基础-5-DockPanel3对话框/App.xaml
@@ -0,0 +1,9 @@
+<Application x:Class="WPF基础_5_DockPanel0对话框.App"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:local="clr-namespace:WPF基础_5_DockPanel0对话框"
+             StartupUri="MainWindow.xaml">
+    <Application.Resources>
+         
+    </Application.Resources>
+</Application>
diff --git a/WPF基础-5-DockPanel3对话框/App.xaml.cs b/WPF基础-5-DockPanel3对话框/App.xaml.cs
new file mode 100644
index 0000000..6a61067
--- /dev/null
+++ b/WPF基础-5-DockPanel3对话框/App.xaml.cs
@@ -0,0 +1,12 @@
+using System.Configuration;
+using System.Data;
+using System.Windows;
+
+namespace WPF基础_5_DockPanel0对话框;
+
+/// <summary>
+/// Interaction logic for App.xaml
+/// </summary>
+public partial class App : Application
+{
+}
\ No newline at end of file
diff --git a/WPF基础-5-DockPanel3对话框/AssemblyInfo.cs b/WPF基础-5-DockPanel3对话框/AssemblyInfo.cs
new file mode 100644
index 0000000..4a05c7d
--- /dev/null
+++ b/WPF基础-5-DockPanel3对话框/AssemblyInfo.cs
@@ -0,0 +1,10 @@
+using System.Windows;
+
+[assembly: ThemeInfo(
+    ResourceDictionaryLocation.None, //where theme specific resource dictionaries are located
+    //(used if a resource is not found in the page,
+    // or application resource dictionaries)
+    ResourceDictionaryLocation.SourceAssembly //where the generic resource dictionary is located
+    //(used if a resource is not found in the page,
+    // app, or any theme specific resource dictionaries)
+)]
\ No newline at end of file
diff --git a/WPF基础-5-DockPanel3对话框/MainWindow.xaml b/WPF基础-5-DockPanel3对话框/MainWindow.xaml
new file mode 100644
index 0000000..0befdb0
--- /dev/null
+++ b/WPF基础-5-DockPanel3对话框/MainWindow.xaml
@@ -0,0 +1,28 @@
+<Window x:Class="WPF基础_5_DockPanel0对话框.MainWindow"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        mc:Ignorable="d"
+        Title="MainWindow" Height="350" Width="500">
+    <DockPanel LastChildFill="True">
+        <StackPanel DockPanel.Dock="Bottom" HorizontalAlignment="Right" Orientation="Horizontal" Margin="10">
+            <Button Margin="0 0 2 0" Padding="3" Click="ButtonBase_OnClick"> 确认</Button>
+            <Button Margin="2 0 0 0 " Padding="3" Click="ButtonBase_OnClick"> 取消</Button>
+        </StackPanel>
+
+        <Border DockPanel.Dock="Top" BorderBrush="Red" Background="Pink" BorderThickness="10" CornerRadius="6"
+                Margin="10">
+            <TextBox Padding="3" TextWrapping="Wrap" Margin="30" AcceptsReturn="True">
+                这是消息提示
+            </TextBox>
+        </Border>
+    </DockPanel>
+</Window>
+<!-- <DockPanel LastChildFill="True"> -->
+<!--     <StackPanel DockPanel.Dock="Bottom" HorizontalAlignment="Right" Orientation="Horizontal" Margin="10"> -->
+<!--         <Button Margin="0 0 5 0" Padding="3" Click="ButtonBase_OnClick">确认</Button> -->
+<!--         <Button Margin="5 0 0 0" Padding="3">取消</Button> -->
+<!--     </StackPanel> -->
+<!--     <TextBox HorizontalAlignment="Stretch" DockPanel.Dock="Top" Margin="10">对话框</TextBox> -->
+<!-- </DockPanel> -->
\ No newline at end of file
diff --git a/WPF基础-5-DockPanel3对话框/MainWindow.xaml.cs b/WPF基础-5-DockPanel3对话框/MainWindow.xaml.cs
new file mode 100644
index 0000000..b812061
--- /dev/null
+++ b/WPF基础-5-DockPanel3对话框/MainWindow.xaml.cs
@@ -0,0 +1,20 @@
+using System.Windows;
+
+namespace WPF基础_5_DockPanel0对话框;
+
+/// <summary>
+///     Interaction logic for MainWindow.xaml
+/// </summary>
+public partial class MainWindow : Window
+{
+    public MainWindow()
+    {
+        InitializeComponent();
+    }
+
+    private void ButtonBase_OnClick(object sender, RoutedEventArgs e)
+    {
+        MessageBox.Show("我知道了", "你要退出了！");
+        Close();
+    }
+}
\ No newline at end of file
diff --git a/WPF基础-5-DockPanel3对话框/WPF基础-5-DockPanel3对话框.csproj b/WPF基础-5-DockPanel3对话框/WPF基础-5-DockPanel3对话框.csproj
new file mode 100644
index 0000000..c1aa314
--- /dev/null
+++ b/WPF基础-5-DockPanel3对话框/WPF基础-5-DockPanel3对话框.csproj
@@ -0,0 +1,12 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <OutputType>WinExe</OutputType>
+        <TargetFramework>net8.0-windows</TargetFramework>
+        <RootNamespace>WPF基础_5_DockPanel0对话框</RootNamespace>
+        <Nullable>enable</Nullable>
+        <ImplicitUsings>enable</ImplicitUsings>
+        <UseWPF>true</UseWPF>
+    </PropertyGroup>
+
+</Project>
diff --git a/WPF基础.sln b/WPF基础.sln
index 3245fbe..76833a6 100644
--- a/WPF基础.sln
+++ b/WPF基础.sln
@@ -20,6 +20,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "WPF基础-5-DockPanel1", "W
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "WPF基础-5-DockPanel2", "WPF基础-5-DockPanel2\WPF基础-5-DockPanel2.csproj", "{492BB6A7-437F-4E7B-BCA8-3C8BB624B8C7}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "WPF基础-5-DockPanel3对话框", "WPF基础-5-DockPanel3对话框\WPF基础-5-DockPanel3对话框.csproj", "{7165AC1A-72DD-4124-A9F1-1CA0205111B8}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -66,5 +68,9 @@ Global
 		{492BB6A7-437F-4E7B-BCA8-3C8BB624B8C7}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{492BB6A7-437F-4E7B-BCA8-3C8BB624B8C7}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{492BB6A7-437F-4E7B-BCA8-3C8BB624B8C7}.Release|Any CPU.Build.0 = Release|Any CPU
+		{7165AC1A-72DD-4124-A9F1-1CA0205111B8}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{7165AC1A-72DD-4124-A9F1-1CA0205111B8}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{7165AC1A-72DD-4124-A9F1-1CA0205111B8}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{7165AC1A-72DD-4124-A9F1-1CA0205111B8}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 EndGlobal