private void btnSave_Click(object sender, EventArgs e)
        {
            var name            = txtName.Text.Trim();
            var userName        = txtUserName.Text.Trim();
            var emailId         = txtEmail.Text.Trim();
            var password        = txtPassword.Text.Trim();
            var confirmPassword = txtConfirmPassword.Text.Trim();

            clsStudentSystem objStudentSystem = new clsStudentSystem();

            objStudentSystem.SaveUserRecord(name, userName, emailId, password);

            FetchAllStudents();
        }
        private void FetchAllStudents()
        {
            clsStudentSystem objStudentSystem = new clsStudentSystem();

            dgStudent.DataSource = objStudentSystem.FetchUsers();
        }