Welcome.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace New
{
    public partial class Welcome : Form
    {
        public Welcome()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            this.Hide();
            Form0 f0 = new Form0();
            f0.Owner = this;
            f0.Show();
        }

        private void button2_Click(object sender, EventArgs e)
        {
            this.Hide();
            Form3 f3 = new Form3();
            f3.Owner = this;
            f3.Show();
        }

        private void button3_Click(object sender, EventArgs e)
        {
            String date = DateTime.Now.ToShortDateString();
            this.Hide();
            Form4 f4 = new Form4(date);
            f4.Owner = this;
            f4.Show();
        }

        private void button4_Click(object sender, EventArgs e)
        {
            this.Hide();
            Form1 f1 = new Form1();
            f1.Owner = this;
            f1.Show();
        }
    }
}