Textchanged event for dynamically create textbox

Hi, I am newbie to developing a windows application using C#.

In that index page, when a first textbox text changed, it should automatically add a new field below the first textbox. And if the second textbox ( child control)text changed, it should automatically add a new field below the second textbox. This will go until the last text field doesn't change.
The textbox created so far, but i cannot set the position for the child controls...its merged.. Have to give the dynamic X,Y points but my code not crossing the level.

I tried the below code.

Code:

 
public partial class Form1 : Form
    {
        int x = 8;
        int y = 8;

        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {

            TextBox txtBox = new TextBox();
            txtBox.Name = "TextBoxName";
            txtBox.Location = new Point(x, y);
            this.panel1.Controls.Add(txtBox);

            txtBox.TextChanged += new EventHandler(this.TextBox_TextChanged);

        }

        private void TextBox_TextChanged(object sender, System.EventArgs e)
        {
            int n = 2;
            for (int i = 1; i < n; i++)
            {
                TextBox tb = new TextBox();
                tb.Location = new System.Drawing.Point(8, 8 + i * 20);
                tb.Name = "TextBoxName" + i.ToString();
                tb.Size = new System.Drawing.Size(184, 20);
                tb.TabIndex = i + 2;                
                this.panel1.Controls.Add(tb);

                IterateThroughChildren(this);               
            }
        }

        private void IterateThroughChildren(Control parentControl)
        {
            
            foreach (Control childControl in parentControl.Controls)
            {
                
                // Find a Particular Control by its Type
                if (childControl.GetType().ToString().Equals("System.Windows.Forms.TextBox"))
                {   
                    childControl.TextChanged += new EventHandler(this.TextBox_TextChanged);
                }
                if (childControl.HasChildren)
                {
                    IterateThroughChildren(childControl);
                }
            }
        }    
    }
}

Any help would be most appreciated.

Thanks