Parameter 参数替换成value

该方法来到hubbledotnet源代码方法

路径：hubble.Data-->hubble.SQLClient-->HubbleCommand类里面的BuildSqlWithSqlParameter方法

在此谢谢eaglet

 #region static methods

        private static string BuildSqlWithSqlParameter(string sql,System.Data.Common.DbParameter[] paras)
        {
            System.Data.Common.DbParameter[] arrParas = new System.Data.Common.DbParameter[paras.Length];

            for (int i = 0; i < paras.Length; i++)
            {
                arrParas[i] = paras[i];
            }

            Array.Sort(arrParas, new DbParameterForSort());

            object[] objParas = new object[arrParas.Length];

            for (int i = 0; i < arrParas.Length; i++)
            {
                sql = sql.Replace(arrParas[i].ParameterName, "{" + i.ToString() + "}");

                switch (arrParas[i].DbType)
                {
                    case System.Data.DbType.AnsiString:
                    case System.Data.DbType.AnsiStringFixedLength:
                    case System.Data.DbType.String:
                         if (arrParas[i].Value == null)
                        {
                            objParas[i] = null;
                        }
                        else
                        {
                            objParas[i] =arrParas[i].Value;
                        }
                        break;
                    case System.Data.DbType.StringFixedLength:
                    case System.Data.DbType.Xml:
                        objParas[i] = arrParas[i].Value as string;
                        break;

                    case System.Data.DbType.Boolean:
                        if (arrParas[i].Value == null)
                        {
                            objParas[i] = null;
                        }
                        else
                        {
                            objParas[i] = arrParas[i].Value.ToString();
                        }
                        break;

                    case System.Data.DbType.Date:
                        if (arrParas[i].Value == null)
                        {
                            objParas[i] = null;
                        }
                        else
                        {
                            objParas[i] = ((DateTime)arrParas[i].Value).ToString("yyyy-MM-dd");
                        }
                        break;

                    case System.Data.DbType.DateTime:
                    case System.Data.DbType.DateTime2:
                        if (arrParas[i].Value == null)
                        {
                            objParas[i] = null;
                        }
                        else
                        {
                            objParas[i] = Convert.ToDateTime(arrParas[i].Value);// ((DateTime)arrParas[i].Value).ToString("yyyy-MM-dd HH:mm:ss");
                        }
                        break;
                    case System.Data.DbType.Time:
                        if (arrParas[i].Value == null)
                        {
                            objParas[i] = null;
                        }
                        else
                        {
                            objParas[i] = ((DateTime)arrParas[i].Value).ToString("HH:mm:ss");
                        }
                        break;
                    case System.Data.DbType.Byte:
                    case System.Data.DbType.UInt16:
                    case System.Data.DbType.UInt32:
                    case System.Data.DbType.UInt64:
                        if (arrParas[i].Value == null)
                        {
                            objParas[i] = null;
                        }
                        else
                        {
                            objParas[i] = ulong.Parse(arrParas[i].Value.ToString());
                        }
                        break;

                    case System.Data.DbType.Decimal:
                    case System.Data.DbType.Double:
                    case System.Data.DbType.Single:
                        if (arrParas[i].Value == null)
                        {
                            objParas[i] = null;
                        }
                        else
                        {
                            objParas[i] = double.Parse(arrParas[i].Value.ToString());
                        }
                        break;

                    case System.Data.DbType.Int16:
                    case System.Data.DbType.Int32:
                    case System.Data.DbType.Int64:
                    case System.Data.DbType.SByte:

                        if (arrParas[i].Value == null)
                        {
                            objParas[i] = null;
                        }
                        else
                        {
                            objParas[i] = long.Parse(arrParas[i].Value.ToString());
                        }
                        break; 

                    default:
                        throw new System.Data.DataException(string.Format("Invalid parameter DataType: {0}", arrParas[i].DbType));
                }
            }

            return BuildSql(sql, objParas);
        }

        class DbParameterForSort : IComparer<System.Data.Common.DbParameter>
        {

            #region IComparer<DbParameter> Members

            public int Compare(System.Data.Common.DbParameter x, System.Data.Common.DbParameter y)
            {
                return y.ParameterName.CompareTo(x.ParameterName);
            }

            #endregion
        }



        public static string BuildSql(string sql, object[] paras)
        {
            if (paras == null)
            {
                return sql;
            }
            else
            {
                object[] parameters = new object[paras.Length];
                paras.CopyTo(parameters, 0);

                for (int i = 0; i < parameters.Length; i++)
                {
                    object obj = parameters[i];

                    if (obj == null)
                    {
                        parameters[i] = "NULL";
                    }
                    else if (obj is string)
                    {
                        parameters[i] = string.Format("'{0}'",
                            ((string)obj).Replace("'", "''"));
                    }
                    else if (obj is bool)
                    {
                        parameters[i] = string.Format("'{0}'", obj);
                    }
                    else if (obj is DateTime)
                    {
                        parameters[i] = string.Format("'{0}'",
                            ((DateTime)obj).ToString("yyyy-MM-dd HH:mm:ss"));
                    }
                    else if (obj is byte[])
                    {
                        StringBuilder sb = new StringBuilder();

                        sb.Append("0x");

                        foreach (byte b in (byte[])obj)
                        {
                            sb.AppendFormat("{0:x1}", b);
                        }

                        parameters[i] = sb.ToString();
                    }
                    else
                    {
                        parameters[i] = obj.ToString();
                    }

                }

                return string.Format(sql, parameters);
            }
        }

        #endregion