private void btn_Login_Click(object sender, EventArgs e) { if (com_ServerList.Text == "") { MessageBox.Show("对不起,请先选择连接服务器后再登录。", "登录失败", MessageBoxButtons.OK, MessageBoxIcon.Warning); return; } if (texUserName.Text.Trim() == "") { MessageBox.Show("请输入登录用户名。", "登录失败", MessageBoxButtons.OK, MessageBoxIcon.Warning); return; } try { //初始化全局数据库缓存MainDataSet DB_Service.InitMainDataSet(); DataRow[] rows = DB_Service.MainDataSet.Tables["UserTable"].Select("UserName = '******'"); if (rows.Length == 1) { if (rows[0]["Password"].ToString().CompareTo(texPassword.Text) == 0 || Global.AutoLogin) { if (Convert.ToBoolean(rows[0]["IsAlive"])) { if (Socket_Service.ConnectServer(Global.ServerIP, Global.ServerPort)) { if (Socket_Service.SendMessage_Safe(Socket_Service.Command_C2S_Reg, texUserName.Text.Trim(), "", "", "", "", "", "", "", "")) { this.Tag = true; Global.PresentUser = texUserName.Text.Trim(); this.Close(); } else { try { Socket_Service.DisconnectServer(); } catch { } MessageBox.Show("对不起,您的帐户已经在别处登陆或者连接数目超限,请联系管理员。", "登录失败", MessageBoxButtons.OK, MessageBoxIcon.Warning); } } else { MessageBox.Show("与服务器的连接失败,请确保服务器已经启动后重新运行。", "服务器通信失败", MessageBoxButtons.OK, MessageBoxIcon.Warning); } } else { MessageBox.Show("对不起,您的帐户已停用,请联系管理员。", "登录失败", MessageBoxButtons.OK, MessageBoxIcon.Warning); } return; } else { MessageBox.Show("请输入正确的用户名和密码。", "登录失败", MessageBoxButtons.OK, MessageBoxIcon.Warning); texPassword.Text = ""; } } else { MessageBox.Show("请输入正确的用户名和密码。", "登录失败", MessageBoxButtons.OK, MessageBoxIcon.Warning); texPassword.Text = ""; } } catch (Exception ex) { MessageBox.Show(ex.Message, Application.ProductName + (Global.IsTempVersion ? "(演示版)" : "")); } }