string[] UserMsg = Global.WMS.CheckUserAndGetInfo(txtUserID.Text.Trim(), txtPWD.Text, out ErrMsg);
这句直接跳到catch

 public string[] CheckUserAndGetInfo(string UserID, string PWD, out string ErrorCode)
        {
            Oracle.DataAccess.Client.OracleDataReader dr = null;
            using (DataConnectKeep dc = new DataConnectKeep())
            {
                try
                {
                    ErrorCode = "";
                    string[] Userinfo = new string[10] { "", "", "", "", "", "0", "0", "0", "0", "" };
                    string sql0 = "Select UserID,Password,UserName,SiteCode,RoleCode from Sys_User where Upper(UserID)='" + UserID.ToUpper().Trim() + "'";
                    dr = dc.ExecuteReader(sql0);
                    if (dr.HasRows)
                    {
                        dr.Read();
                        if (!PWD.Equals(dr["Password"].ToString()))
                        {
                            ErrorCode = "密码错误！";
                            if (dr != null) dr.Close();
                            return null;
                        }
                        if (dr["RoleCode"].ToString().Trim() == "")
                        {
                            ErrorCode = "用户没有分配角色，没有权限进行操作！";
                            if (dr != null) dr.Close();
                            return null;
                        }
                        Userinfo[0] = dr["UserID"].ToString();
                        Userinfo[1] = dr["Password"].ToString();
                        Userinfo[2] = dr["UserName"].ToString();
                        Userinfo[3] = dr["SiteCode"].ToString();
                        Userinfo[4] = dr["RoleCode"].ToString();
                        if (dr != null) dr.Close();
                        string sql1 = "select FuncID from Sys_RoleRight where ROLECODE='" + Userinfo[4] + "' AND FUNCID BETWEEN '6000' AND '6300'";
                        string[] FuncArray = dc.ExecuteArray(sql1);
                        for (int i = 1; i < FuncArray.Length; i++)
                        {
                            if (FuncArray[i] == "6000")
                            {
                                Userinfo[5] = "1";
                            }
                            if (FuncArray[i] == "6100")
                            {
                                Userinfo[6] = "1";
                            }
                            if (FuncArray[i] == "6200")
                            {
                                Userinfo[7] = "1";
                            }
                            if (FuncArray[i] == "6300")
                            {
                                Userinfo[8] = "1";
                            }
                        }
                        Userinfo[9] = dc.GetServerCurrentDateTime(4);
                        string strUpdateSql = "";
                        strUpdateSql += " insert into LOGINLOG ";
                        strUpdateSql += " (LOGINDATE,USERID,ROLECODE) values (TO_DATE('" + Userinfo[9] + "','YYYY-MM-DD HH24:MI:SS'),'" + Userinfo[0] + "','" + Userinfo[4] + "')";
                        dc.ExecuteNonQuery(strUpdateSql);
                    }
                    else
                    {
                        ErrorCode = "该用户不存在！";
                        if (dr != null) dr.Close();
                        return null;
                    }
                    if (dr != null) dr.Close();
                    return Userinfo;
                }
                catch (Exception e)
                {
                    ErrorCode = "检查用户和获取信息失败！" + e.Message;
                    if (dr != null) dr.Close();
                    return null;
                }
                finally
                {
                    if (dr != null) dr.Close();
                    dc.ConnectSqlClose();
                }
            }
        }