在C#/WPF中更改鼠标事件的矩形属性

我有一个矩形数组，如下所示：

        int nRec = 3;
        double sizeRec = 30.0;
        Rectangle[,] recArray = new Rectangle[nRec, nRec];

        for (int i = 0; i < nRec; i++)
        {
            for (int j = 0; j < nRec; j++)
            {
                recArray[i, j] = new Rectangle()
                {
                    Width = sizeRec,
                    Height = sizeRec,
                    Fill = Brushes.Red,
                    Stroke = Brushes.DarkRed,
                    StrokeThickness = 1,
                };
                // Add to a canvas for example
                recArray[i, j].MouseLeftButtonDown += (sender2, e2) => ClickEvent(sender2, e2, i, j);
                front_canvas.Children.Add(recArray[i, j]);
                Canvas.SetTop(recArray[i, j], sizeRec + sizeRec * i);
                Canvas.SetLeft(recArray[i, j], sizeRec + sizeRec * j);
            }
        }

理想情况下，我希望避免使用XAML，并感谢社区提供的任何指导。

您可以尝试一下

   private void ClickEvent(object sender, EventArgs e)
   {
       Rect rect = (Rectangle)sender;
       rect.Fill = Brushes.Green;
   }

---

PS：避免在循环中捕获局部变量。将捕获变量本身，而不是值。

好的，谢谢。您的解决方案与：

Rectangle=（Rectangle）sender一起工作
    private void ClickEvent(object sender, EventArgs e, int i, int j)
    {
        //Code to change Change rectangle properties:

    }

   private void ClickEvent(object sender, EventArgs e)
   {
       Rect rect = (Rectangle)sender;
       rect.Fill = Brushes.Green;
   }