Text not displaying on custom button control?

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C#

buttons

custom-controls

Hi, I've made a custom control for a film and entertainment system in a windows form. The control is button which is the basic custom control with just two different colours put together and are transparaent. I put the control in my windows form and it work fine but when I add text to the button the text doesnt display? I thought at first it had something to do with the colours I used, but that hasn't affected it? I changed the text in the properties for the button, do I need to change the text in the code, instead of just the properties?

Heres the code for the control:

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
namespace Button
{
    public partial class CustomControl : Control
    {
        public CustomControl()
        {
            InitializeComponent();
        }
        
        
    private Color m_color1 = Color.Green; // first color
    private Color m_color2 = Color.Red;  // second color
    private int m_color1Transparent = 100; // transparency degree 
                                             // (applies to the 1st color)
    private int m_color2Transparent = 100; // transparency degree 
                                          //  (applies to the 2nd color)

    public Color Color1
    {
        get { return m_color1; }
        set { m_color1 = value; Invalidate(); }
    }
    public Color Color2
    {
        get { return m_color2; }
        set { m_color2 = value; Invalidate(); }
    }
    public int Transparent1
    {
        get { return m_color1Transparent; }
        set { m_color1Transparent = value; Invalidate(); }
    }
    public int Transparent2
    {
        get { return m_color2Transparent; }
        set { m_color2Transparent = value; Invalidate(); }
    }

  

    protected override void OnPaint(PaintEventArgs pe)
    {
        // Calling the base class OnPaint
        base.OnPaint(pe);
        // Create two semi-transparent colors
        Color c1 = Color.FromArgb
            (m_color1Transparent , m_color1);
        Color c2 = Color.FromArgb
            (m_color2Transparent , m_color2);
        Brush b = new System.Drawing.Drawing2D.LinearGradientBrush
            (ClientRectangle, c1, c2, 10);
        pe.Graphics.FillRectangle (b, ClientRectangle);
        b.Dispose();
    }
private void f1_paint(object sender, PaintEventArgs e)
    {
        // Get Graphics Object
        Graphics g = e.Graphics;

        // Method under System.Drawing.Graphics
        g.DrawString("Download Film", new Font("Verdana", 20),
        new SolidBrush(Color.Tomato), 40, 40);
    }


}
}