动态创建 C# WPF 按钮

我需要在窗体上创建可转动的手柄（单击鼠标，手柄的位置从垂直变为水平，反之亦然）。句柄排列成正方形，就像一个二维 NxN 数组。数字 N 必须是可定制的。我决定创建一个旋转按钮数组。

private Button[,] CreateButtons(int quantity)
{
    Button[,] buttons = new Button[quantity, quantity];
    for (int i = 0; i < quantity; i++)
    {
        for (int j = 0; j < quantity; j++)
        {
            buttons[i, j] = new Button();
            buttons[i, j].Width = 50;
            buttons[i, j].Height = 20;
            buttons[i, j].VerticalAlignment = System.Windows.VerticalAlignment.Top;
            buttons[i, j].HorizontalAlignment = System.Windows.HorizontalAlignment.Left;
            buttons[i, j].Margin = new Thickness(10);
        }
    }
    return buttons;
}

private void AddToWrapPanel(int quantity, Button[,] buttons)
{
    for (int i = 0; i < quantity; i++)
        for (int j = 0; j < quantity; j++)
        {
            wrapPanel.Children.Add(buttons[i, j]);
        }
}

private int GetQuantityButtons()
{
    ComboBoxItem item = (ComboBoxItem)comboBox1.SelectedItem;
    int count = int.Parse((string)item.Content);
    return count;
}

private void СreateButton_Click(object sender, RoutedEventArgs e)
{
    if (wrapPanel.Children.Count > 0)
        wrapPanel.Children.Clear();
    int count = GetQuantityButtons();
    Button[,] buttons = CreateButtons(count);
    AddToWrapPanel(count, buttons);
}

这就是我所拥有的。但问题出在脸上——所有的按钮都排成一排。如何实现矩阵布局？