添加项目文件。

WPFWCSDemo/ViewModels/CustomComponent/InputDialogViewModel.cs

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+using CommunityToolkit.Mvvm.ComponentModel;
+using CommunityToolkit.Mvvm.Input;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection.Metadata;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+
+namespace WPFWCSDemo.ViewModels.CustomComponent
+{
+    public partial class InputDialogViewModel : ObservableObject
+    {
+        
+        public InputDialogViewModel(Window window,Action<string> action)
+        {
+            Caption = "验证";
+            InputDialog = window;
+            _task = action;
+        }
+
+        /// <summary>
+        /// 标题
+        /// </summary>
+        [ObservableProperty]
+        string _caption;
+        /// <summary>
+        /// 内容
+        /// </summary>
+        [ObservableProperty]
+        string _content;
+        /// <summary>
+        /// 当前页面
+        /// </summary>
+        [ObservableProperty]
+        Window _inputDialog;
+
+        [ObservableProperty]
+        Action<string>? _task;
+
+        /// <summary>
+        /// 关闭窗口
+        /// </summary>
+        /// <param name="window"></param>
+        [RelayCommand]
+        void Cancel(Window window)
+        {
+            window.Close();
+        }
+
+        /// <summary>
+        /// 输入密码
+        /// </summary>
+        [RelayCommand]
+        void Accept(string taskId)
+        {
+            if (Content == "472")
+            {
+                MessageBox.Show("密码正确");
+                //Task.Invoke(taskId);
+            }
+            else
+            {
+                MessageBox.Show("密码错误");
+                
+            }
+        }
+
+
+    }
+}

WPFWCSDemo/ViewModels/CustomComponent/MessageDialogViewModel.cs

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+using CommunityToolkit.Mvvm.ComponentModel;
+using CommunityToolkit.Mvvm.Input;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection.Metadata;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using WPFWCSDemo.Views;
+
+namespace WPFWCSDemo.ViewModels.CustomComponent
+{
+    public partial class MessageDialogViewModel:ObservableObject
+    {
+        public MessageDialogViewModel(Window window)
+        {
+            Caption = "消息";
+            Content = "关闭该系统可能导致执行中的任务中断，是否确认要退出程序?";
+            MessageDialog = window;
+
+        }
+
+        /// <summary>
+        /// 标题
+        /// </summary>
+        [ObservableProperty]
+        string _caption;
+        /// <summary>
+        /// 内容
+        /// </summary>
+        [ObservableProperty]
+        string _content;
+        /// <summary>
+        /// 当前页面
+        /// </summary>
+        [ObservableProperty]
+        Window _messageDialog;
+
+        /// <summary>
+        /// 关闭窗口
+        /// </summary>
+        /// <param name="window"></param>
+        [RelayCommand]
+        void Cancel(Window window)
+        {
+            window.Close();
+        }
+
+        /// <summary>
+        /// 终止程序
+        /// </summary>
+        [RelayCommand]
+        void Accept()
+        {
+            Application.Current.Shutdown();
+        }
+
+
+        public void GetMessageInfo(string content)
+        {
+            Caption = "消息";
+            Content = content;
+        }
+        public void GetMessageInfo(string caption,string content)
+        {
+            Caption = caption;
+            Content = content;
+        }
+    }
+}