c# - 有没有办法从通用对象列表中获取特定对象

Question

我想用继承自抽象用户控件的用户控件填充面板。他们唯一的共同超类是控制。

填充 BaseShape 和 BaseFractal 的代码是一种通用方法，它要求使用控件列表自行填充。我想在面板旁边的字段上创建一个对象，该对象具有他们在预览中单击的类型以及用户控件属性的属性。我不能调用这些属性，因为 BaseShape 和 BaseFractal 并不常见。我想创建一个包含所有这些属性的超类，以便我可以更改它们并忽略我不想更改的属性。除了创建一个包含所有属性的超类的想法之外，还有其他方法吗？

private void PopulatePanel(List<Control> controls, Panel panel, int controlsPerRow = 3)
       {
           if (Utility.Utility.IsNullOrDefault(controls) || Utility.Utility.IsNullOrDefault(panel) || controlsPerRow <= 0) return;
           panel.Controls.Clear();
           int widthBetweenControls = (int)(panel.Width * 0.05);
           int heightBetweenControls = (int)(panel.Height * 0.05);
           int heighthBetweenSideControl = (int)(panel.Height * 0.1);
           int widthBetweenSideControl = (int)(panel.Width * 0.1);
           int yCoord = heighthBetweenSideControl;
           int widthControl = (int)((panel.Width - 2 * widthBetweenSideControl - widthBetweenControls * (controlsPerRow - 1)) / controlsPerRow);
           int heightControl = (int)((panel.Height - 2 * heighthBetweenSideControl - heightBetweenControls * (controlsPerRow - 1)) / (controlsPerRow-1));
           for (int i = 0; i <= controls.Count / controlsPerRow; i++)
          {
               int xCoord = widthBetweenSideControl;
               for (int j = 0; j < controlsPerRow; j++)
               {
                   if (j + (i * controlsPerRow) == controls.Count) return;
                   Control c = controls.ElementAt(j + (i * controlsPerRow));
                   c.Width = widthControl;
                   c.Height = heightControl;
                  c.Location = new Point(xCoord, yCoord);
                panel.Controls.Add(c);
                xCoord += (j == controlsPerRow) ? (widthBetweenSideControl) : (widthBetweenControls + widthControl);
            }
            yCoord += (i >= controls.Count / controlsPerRow) ? (heighthBetweenSideControl) : (heightBetweenControls + heightControl);
        }
    }

    private void ShapeButon_Click(object sender, EventArgs e)
    {
        List<Control> controls = new List<Control>();
        foreach(Shape t in Enum.GetValues(typeof(Shape)))
        {
            BaseShape bs = ShapeFactory.CreateInstance(t);
            controls.Add(ShapeFactory.CreateInstance(t));
        }
        PopulatePanel(controls, selectPanel, 3);
    }

标签： c#winformsgenericsuser-controls