◆大家来看看，winform窗体位置问题◆

Question

有两个窗体main 和child ,main中有一个文本框一个按钮。当点击main中的show按钮弹出child窗体。如何使child显示在main中文本框的下方（如：下图）？
我想用如下代码实现,但child显示位置总是不正确！main.cs
public partial class main : Form
    {
        public main()
        {
            InitializeComponent();
        }        private void simpleButton1_Click(object sender, EventArgs e)
        {
            child cd = new child();
            cd.showForm(textEdit1);
        }
    }child.cs
public partial class child : DevExpress.XtraEditors.XtraForm
    {
        public child()
        {
            InitializeComponent();
        }
        public void showForm(Control ctl)
        {
            this.Show();
            Point p1 = ctl.Location;
            Point p2 = ctl.PointToScreen(p1);
            this.Location = p2;        }
    }请各位帮帮忙？看看如何实现！

Answer 1

child cd = new child();
cd.StartPosition = FormStartPosition.Manual;
cd.showForm(textEdit1);修改为
child cd = new child();
cd.StartPosition = FormStartPosition.Manual;
cd.showForm(textEdit1);

Answer 2

没看到。你现实的也不对。
显示的部分这样。Form child = new Form();
child.StartPosition = FormStartPosition.Manual;
child.Location = this.PointToScreen(new Point(textBox5.Left, textBox5.Top + textBox5.Height));
child.Show();
如果想嵌入窗体Form child = new Form();
child.StartPosition = FormStartPosition.Manual;
child.Location = new Point(textBox5.Left, textBox5.Top + textBox5.Height);
child.Show();
child.TopLevel = false;
this.Controls.Add(child);
child.BringToFront();

Answer 3

main.cs
public partial class Main : Form
    {
        public Main()
        {
            InitializeComponent();
        }
        
        private void simpleButton1_Click(object sender, EventArgs e)
        {
            Child cd = new Child();
            cd.ShowChild(textEdit1);
        }
    }child.cspublic partial class Child : DevExpress.XtraEditors.XtraForm
    {
        private Form mainForm = null;
        public Child()
        {
            InitializeComponent();
        }
       
        public void ShowChild(Control ctl)
        {
            if (Application.OpenForms.Count > 0)
            {
                mainForm = Application.OpenForms[0];
            }
            this.Show();
            
              this.StartPosition = FormStartPosition.Manual;
            Point p = mainForm.PointToScreen(new Point(ctl.Left, ctl.Top + ctl.Height));
            this.Location = p;
           
        }
       
    }