相同的代码在两个不同的应用程序上做两个不同的事情？

Question

If I have this code:

class TestBrowser : WebBrowser
{
    public TestBrowser()
    {
        Panel panel = new Panel();
        panel.Dock = DockStyle.Fill;
        Controls.Add(panel);
    }
}

Should the panel cover the WebBrowser and make it invisible or not? What would it be the expected behavior? I ask this because this same code is giving me two different results on two different apps and can't find why (the panel covers it on one and is invisible in the other).

Answer 1

如果将新控件添加到面板-将ID添加到面板-定义一个函数，该函数将在将控件添加到TestBrowser实例中包含的面板本身后更改Dock属性值