在图片框上显示文本框

Question

我动态显示一些图像，当我用鼠标悬停时，我想显示一个文本框，如果有的话，它将显示在所有图像或其中的一些图像上。

这是我动态分配图片的方式：

var picture = new PictureBox
                {
                    Name = "pictureBox" + contor,
                    Size = new Size(72, 72),
                    Location = new Point(x, y),
                    Image = Image.FromFile("C://Users//radul//OneDrive//Desktop//Pictures Lic//rf 72x72.png"),
                };

x += 100; 
y = (y + 100) % this.Size.Height;
picture.MouseDown += new MouseEventHandler(picture_MouseDown);
picture.MouseMove += new MouseEventHandler(picture_MouseMove);
picture.MouseUp += new MouseEventHandler(picture_MouseUp);
picture.MouseHover += new EventHandler(picture_MouseHover);
picture.MouseLeave += new EventHandler(picture_MouseLeave);

this.Controls.Add(picture);

并显示文本框：

private void picture_MouseHover(object sender, EventArgs e){

   tBox.Height = 100;
   tBox.Width = 400;
   tBox.Multiline = true;
   tBox.BringToFront();
   tBox.Text = detalii;
   tBox.Top = picBox.Top + 20;
   tBox.Left = picBox.Right + 20;
   this.Controls.Add(tBox);
}

Output，这是我的程序显示的内容，我希望该文本框位于该图像上方。