C# 尝试访问面板父级的位置

Question

我有一个带有选项卡控件的主窗体。通过从解决方案中的其他表单添加面板来填充选项卡。这些面板之一有一些代码会弹出一个选项窗口。我希望该窗口与主窗体的右上角对齐。为此，我需要主窗体的位置和大小。但是，我似乎无法访问任何属性来告诉其中一个面板该主窗体的位置。

我已经尝试过 this.Parent、this.ParentForm 和 this.GetContainerControl() 之类的方法。它们都返回 null。

有什么想法吗？

附录

//Code for the main form:
namespace WinAlignTest {
    public partial class Form1 : Form {
        public Form1() {
            InitializeComponent();
            tabControl1.TabPages[0].Controls.Add(new SomeApplication().panel1);
        }
    }
}



//Code that shows the option window
namespace WinAlignTest {
    public partial class SomeApplication : Form {
        private ApplicationOptions Options;
        public SomeApplication() {
            InitializeComponent();
            Options = new ApplicationOptions();
        }

        private void button1_Click(object sender, EventArgs e) {
            Options.Show();

            //This will always move the location to {0,0}
            Options.Location = new Point(base.Location.X,base.Location.Y);
        }
    }
}

Answer 1

我很困惑，您似乎要将属于 SomeApplication 的面板添加到 Form1。我建议您实际上将 SomeApplication 设为 UserControl 而不是表单:

//Code for the main form:
namespace WinAlignTest {
    public partial class Form1 : Form {
        public Form1() {
            InitializeComponent();
            tabControl1.TabPages[0].Controls.Add(new SomeApplication());
        }
    }
}

//Code that shows the option window
namespace WinAlignTest {
    public partial class SomeApplication : UserControl {
        private ApplicationOptions Options;
        public SomeApplication() {
            InitializeComponent();
            Options = new ApplicationOptions();
        }

        private void button1_Click(object sender, EventArgs e) {
            Options.Show();

            // You might need to use PointToScreen here
            Options.Location = this.Location;
        }
    }
}