阻止WPF控件在MouseMove事件上重叠

Question

我正在使用全屏Grid的动态C＃WPF应用程序（在Windows 10上）。控件在运行时动态添加到网格中（在Dictionary<>中管理）我最近添加了代码，使用TranslateTransform（我现在怀疑其可行性）使用鼠标（也在运行时）沿网格移动控件。

有没有办法可以防止控件在移动时重叠或“共享空间”？换句话说，添加某种碰撞检测。我会使用if语句来检查控制边距范围吗？我的移动事件如下所示：

MainWindow.xaml.cs：

public partial class MainWindow : Window
{
     // Orientation variables:
     public bool _isInDrag = false;
     public Dictionary<object, TranslateTransform> PointDict = new Dictionary<object, TranslateTransform();
     public Point _anchorPoint;
     public Point _currentPoint;

     public MainWindow()
     {
          InitializeComponent();
     }

    public static void Control_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
    {
        if (_isInDrag)
        {
            var element = sender as FrameworkElement;
            element.ReleaseMouseCapture();
            _isInDrag = false;
            e.Handled = true;
        }           
    }

    public static void Control_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
    {
         var element = sender as FrameworkElement;
         _anchorPoint = e.GetPosition(null);
         element.CaptureMouse();
         _isInDrag = true;
         e.Handled = true;
    }

    public static void Control_MouseMove(object sender, MouseEventArgs e)
    {
        if (_isInDrag)
        {
            _currentPoint = e.GetPosition(null);
            TranslateTransform tt = new TranslateTransform();
            bool isMoved = false;
            if (PointDict.ContainsKey(sender))
            {
                tt = PointDict[sender];
                isMoved = true;
            }
            tt.X += _currentPoint.X - _anchorPoint.X;
            tt.Y += (_currentPoint.Y - _anchorPoint.Y);
            (sender as UIElement).RenderTransform = tt;
            _anchorPoint = _currentPoint;
            if (isMoved)
            {
                PointDict.Remove(sender);
            }
            PointDict.Add(sender, tt);
        }
   }
}

MainWindow.xaml（示例）：

<Window x:Name="MW" x:Class="MyProgram.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"
    xmlns:local="clr-namespace:MyProgram"
    mc:Ignorable="d"
    Title="MyProgram" d:DesignHeight="1080" d:DesignWidth="1920" ResizeMode="NoResize" WindowState="Maximized" WindowStyle="None">

    <Grid x:Name="MyGrid" />
        <Image x:Name="Image1" Source="pic.png" Margin="880,862,0,0" Height="164" Width="162" HorizontalAlignment="Left" VerticalAlignment="Top" MouseLeftButtonDown="Control_MouseLeftButtonDown" MouseLeftButtonUp="Control_MouseLeftButtonUp" MouseMove="Control_MouseMove" />
        <TextBox x:Name="Textbox1" Margin="440,560,0,0" HorizontalAlignment="Left" VerticalAlignment="Top" MouseLeftButtonDown="Control_MouseLeftButtonDown" MouseLeftButtonUp="Control_MouseLeftButtonUp" MouseMove="Control_MouseMove" />
</Window>

编辑：似乎用TranslateTransform移动控件不会改变该控件的边距。不知道为什么。

编辑2：没有太大的牵引力。如果有人需要澄清任何事情，请询问。

编辑3：很确定我不能使用TranslateTransform，因为它不会改变给定控件的边距。还有其他选择吗？

编辑4：为想要复制和粘贴的人添加了一些“样板”代码。如果您对此有任何疑问，请与我们联系。