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varchar": csharpType = "string"; break; case "xml": csharpType = "string"; break; default: csharpType = "object"; break; } return csharpType; } public static string MapDBType(string dbtype) { if (string.IsNullOrEmpty(dbtype)) return dbtype; dbtype = dbtype.ToLower(); string csharpType = "object"; switch (dbtype) { case "bigint": csharpType = "DbType.Int64"; break; case "binary": csharpType = "DbType.Binary"; break; case "bit": csharpType = "DbType.Boolean"; break; case "char": csharpType = "DbType.String"; break; case "date": csharpType = "DbType.DateTime"; break; case "datetime": csharpType = "DbType.DateTime"; break; case "datetime2": csharpType = "DbType.DateTime2"; break; case "datetimeoffset": csharpType = "DbType.DateTimeOffset"; break; case "decimal": csharpType = "DbType.Decimal"; break; case "float": csharpType = "DbType.Double"; break; case "image": csharpType = "DbType.Binary"; break; case "int": csharpType = "DbType.Int32"; break; case "money": csharpType = "DbType.Currency"; break; case "nchar": csharpType = "DbType.StringFixedLength"; break; case "ntext": csharpType = "DbType.String"; break; case "numeric": csharpType = "DbType.Decimal"; break; case "nvarchar": csharpType = "DbType.String"; break; case "real": csharpType = "DbType.Single"; break; case "smalldatetime": csharpType = "DbType.DateTime"; break; case "smallint": csharpType = "DbType.Int16"; break; case "smallmoney": csharpType = "DbType.Decimal"; break; case "sql_variant": csharpType = "DbType.Object"; break; case "sysname": csharpType = "DbType.Object"; break; case "text": csharpType = "DbType.String"; break; case "time": csharpType = "DbType.DateTime"; break; case "timestamp": csharpType = "DbType.Binary"; break; case "tinyint": csharpType = "DbType.Byte"; break; case "uniqueidentifier": csharpType = "DbType.Guid"; break; case "varbinary": csharpType = "DbType.Binary"; break; case "varchar": csharpType = "DbType.AnsiString"; break; case "xml": csharpType = "DbType.Xml"; break; default: csharpType = "DbType.Object"; break; } return csharpType; } public static Type MapCommonType(string dbtype) { if (string.IsNullOrEmpty(dbtype)) return Type.Missing.GetType(); dbtype = dbtype.ToLower(); Type commonType = typeof(object); switch (dbtype) { case "bigint": commonType = typeof(long); break; case "binary": commonType = typeof(byte[]); break; case "bit": commonType = typeof(bool); break; case "char": commonType = typeof(string); break; case "date": commonType = typeof(DateTime); break; case "datetime": commonType = typeof(DateTime); break; case "datetime2": commonType = typeof(DateTime); break; case "datetimeoffset": commonType = typeof(DateTimeOffset); break; case "decimal": commonType = typeof(decimal); break; case "float": commonType = typeof(double); break; case "image": commonType = typeof(byte[]); break; case "int": commonType = typeof(int); break; case "money": commonType = typeof(decimal); break; case "nchar": commonType = typeof(string); break; case "ntext": commonType = typeof(string); break; case "numeric": commonType = typeof(decimal); break; case "nvarchar": commonType = typeof(string); break; case "real": commonType = typeof(Single); break; case "smalldatetime": commonType = typeof(DateTime); break; case "smallint": commonType = typeof(short); break; case "smallmoney": commonType = typeof(decimal); break; case "sql_variant": commonType = typeof(object); break; case "sysname": commonType = typeof(object); break; case "text": commonType = typeof(string); break; case "time": commonType = typeof(TimeSpan); break; case "timestamp": commonType = typeof(byte[]); break; case "tinyint": commonType = typeof(byte); break; case "uniqueidentifier": commonType = typeof(Guid); break; case "varbinary": commonType = typeof(byte[]); break; case "varchar": commonType = typeof(string); break; case "xml": commonType = typeof(string); break; default: commonType = typeof(object); break; } return commonType; } } #endregion #>