Initial commit: .NET practice project

Added CSharp, Nots, and Wpf directories with various practice exercises and projects.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

Wpf/Prism1/ModuleB/ViewModels/ViewBModel.cs

@@ -0,0 +1,65 @@
+using System;
+using System.Runtime.Intrinsics.X86;
+using System.Windows;
+using Prism.Mvvm;
+using Prism.Regions;
+
+namespace ModuleB.ViewModels;
+
+public class ViewBModel : BindableBase, INavigationAware,IConfirmNavigationRequest
+{
+    private string _name;
+
+    public string Name
+    {
+        get => _name;
+        set
+        {
+            _name = value;
+            RaisePropertyChanged();
+        }
+    }
+
+    /// <summary>
+    ///     每次导航到此页面都会调用，是否重用实例
+    /// </summary>
+    /// <param name="navigationContext"></param>
+    /// <returns></returns>
+    public bool IsNavigationTarget(NavigationContext navigationContext)
+    {
+        return true;
+    }
+
+    /// <summary>
+    ///     导航到此页面时调用
+    /// </summary>
+    /// <param name="navigationContext"></param>
+    public void OnNavigatedTo(NavigationContext navigationContext)
+    {
+        if (!navigationContext.Parameters.ContainsKey("name")) return;
+        var value = navigationContext.Parameters.GetValue<string>("name");
+        Name = value;
+    }
+
+    /// <summary>
+    ///     来自哪里的导航
+    /// </summary>
+    /// <param name="navigationContext"></param>
+    public void OnNavigatedFrom(NavigationContext navigationContext)
+    {
+    }
+
+    /// <summary>
+    ///     是否能够切换出去
+    /// </summary>
+    /// <param name="navigationContext"></param>
+    /// <param name="continuationCallback"></param>
+    public void ConfirmNavigationRequest(NavigationContext navigationContext, Action<bool> continuationCallback)
+    {
+        var result = MessageBox.Show("是否能够切换出去？","提示", MessageBoxButton.YesNo);
+        if (result == MessageBoxResult.Yes)
+        {
+            continuationCallback(true);
+        }
+    }
+}