添加用户控件1

WpfMvvmChart1/ViewModels/User1ViewModel.cs

@@ -0,0 +1,15 @@
+using CommunityToolkit.Mvvm.ComponentModel;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace WpfMvvmChart1.ViewModels
+{
+    public partial class User1ViewModel:ObservableObject
+    {
+        [ObservableProperty]
+        string title = "TayUserControl";
+    }
+}

WpfMvvmChart1/Views/MainWindow.xaml

@@ -4,13 +4,16 @@
         xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
         xmlns:vm="clr-namespace:WpfMvvmChart1.ViewModels"
-        xmlns:local="clr-namespace:WpfMvvmChart1"
+        xmlns:local="clr-namespace:WpfMvvmChart1.Views"
         mc:Ignorable="d"
         Title="MainWindow" Height="450" Width="800">
     <Window.DataContext>
         <vm:MainWindowViewModel />
     </Window.DataContext>
     <Grid>
+        <StackPanel>
         <TextBlock Text="{Binding Message}" FontSize="50"/>
+            <local:UserControl1 />
+        </StackPanel>
     </Grid>
 </Window>

WpfMvvmChart1/Views/UserControl1.xaml

@@ -0,0 +1,13 @@
+<UserControl x:Class="WpfMvvmChart1.Views.UserControl1"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
+             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
+             xmlns:local="clr-namespace:WpfMvvmChart1.Views"
+             mc:Ignorable="d" 
+             d:DesignHeight="450" d:DesignWidth="800">
+    <Grid>
+        <TextBlock Text="{Binding Title}"
+                   FontSize="50" />
+    </Grid>
+</UserControl>

WpfMvvmChart1/Views/UserControl1.xaml.cs

@@ -0,0 +1,30 @@
+using System;
+using System.Collections.Generic;
+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;
+using WpfMvvmChart1.ViewModels;
+
+namespace WpfMvvmChart1.Views
+{
+    /// <summary>
+    /// UserControl1.xaml 的交互逻辑
+    /// </summary>
+    public partial class UserControl1 : UserControl
+    {
+        public UserControl1()
+        {
+            InitializeComponent();
+            this.DataContext = new User1ViewModel();
+        }
+    }
+}