protected void Button2_Click(object sender, EventArgs e)
        {
            int     id = Convert.ToInt32(TextBox1.Text);
            EmpData x  = ede.EmpDatas.Find(id);

            if (x != null)
            {
                x.Name   = TextBox2.Text;
                x.Salary = Convert.ToInt32(TextBox3.Text);
                x.Gender = TextBox4.Text;
            }
            ede.SaveChanges();
        }
        protected void Button1_Click1(object sender, EventArgs e)
        {
            var data = new EmpData
            {
                Id     = Convert.ToInt32(TextBox1.Text),
                Name   = TextBox2.Text,
                Salary = Convert.ToInt32(TextBox3.Text),
                Gender = TextBox4.Text
            };

            ede.EmpDatas.Add(data);
            ede.SaveChanges();
        }
        protected void Button3_Click(object sender, EventArgs e)
        {
            int id = Convert.ToInt32(TextBox1.Text);


            EmpData x = ede.EmpDatas.Find(id);

            if (x != null)
            {
                ede.EmpDatas.Remove(x);
            }

            ede.SaveChanges();
        }