private void btnDelete_Click(object sender, EventArgs e)
{
if (!_memberRepo.RemoveMember(_memberRepo.GetAllMembers()[_index].MemberId))
{
MessageBox.Show("Cannot remove member that is currently renting an book", "Rent error",
MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
_index = 0;
SetData();
}
