// ���ܷÿ����� private void acceptToolStripButton_Click(object sender, EventArgs e) { try { acceptToolStripButton.Enabled = false; VisitorListViewItem vlvi = getSelectedVisitorListViewItem(); if (vlvi != null) { Chat chat = operaterServiceAgent.GetChatRequest(vlvi.Visitor.VisitorId); if (chat != null && vlvi.VisitSession.Status == VisitSessionStatus.ChatRequesting) { ChatForm cf = new ChatForm(operaterServiceAgent); Program.ChatForms.Add(cf); cf.Show(); cf.Accept(chat); } else { MessageBox.Show("�÷ÿ���ʱ��δ����Ի�"); } } } finally { acceptToolStripButton.Enabled = true; } }