public void AddMember(Account acc)
{
GroupMember mb = new GroupMember(acc);
MemberList.Add(mb);
this.pnlMember.flowLayoutPanel.Controls.Add(mb);
mb.BtnRemoveClick(new SelectMemberHandler(this, acc).HandleRemove);
this.pnlMember.UpdateUi();
if (MemberList.Count >= 2)
{
this.btnCreateGroup.Enabled = true;
}
}