How to create a text box by click a button in Windows Form?

hope the below code helps

 private void btnGetFullName_Click(object sender, EventArgs e)
        {
            TextBox textbox_1 = new TextBox();
            textbox_1.Text = "New TextBox";
            System.Drawing.Font font = new Font("Arial", 8, FontStyle.Bold);
            textbox_1.BorderStyle = BorderStyle.FixedSingle;
            textbox_1.BackColor = Color.White;

            textbox_1.Font = font;          
            this.Controls.Add(textbox_1);

        }

to change the border color you would have to create your own textbox and override OnPaint