添加项目文件。

SamplePreSystem.UI/Behaviors/BorderMouseMoveBehavior.cs

@@ -0,0 +1,35 @@
+using Microsoft.Xaml.Behaviors;
+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.Input;
+
+namespace SamplePreSystem.UI.Behaviors
+{
+    public class BorderMouseMoveBehavior :Behavior<Border>
+    {
+
+        protected override void OnAttached()
+        {
+            //base.OnAttached();
+
+            AssociatedObject.MouseMove += AssociatedObject_MouseMove;
+        }
+
+        private void AssociatedObject_MouseMove(object sender, System.Windows.Input.MouseEventArgs e)
+        {
+            if (e.LeftButton == MouseButtonState.Pressed)
+            {
+                // 获取窗口并执行拖拽
+                if (Window.GetWindow(AssociatedObject) is Window window)
+                {
+                    window.DragMove();
+                }
+            }
+        }
+    }
+}